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  1. #1
    Les Paul Forum Member J.D.'s Avatar
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    Sucked Back Into Tube Rolling - Anyone Else?

    Seems there are a number of decent new production tubes available at reasonable prices from reputable vendors who further match and screen them. I've been buying some different brands and flavors and having a blast listening to the subtle but audible tone differences, similar to pickup swapping in some respects. I'm playing in the 12ax7 preamp and EL34/6CA7 power tube types.

    I'm surprised to say the Groove Tubes and similar rebranded Chinese Shuguang 12ax7s sound really great from both tone and noise perspectives, as do their EL34-Ms. Maybe it's just a familiar sound to me. Electro Harmonix big bottle 6CA7s and Mullard reissue EL34s sounded excellent to my ears as well. Not really impressed with some of the JJ and Sovtek preamp tubes I've tried.

    The =C= EL34 used to be my go to power tube years ago but the cost has really increased, and what I've read is the current production is a different tube. Lot of good old tubes also available but I've stayed out of that segment for now.

    Anyone else tube rolling?

  2. #2
    Les Paul Forum Member thin sissy's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    It's been years since I've bought tubes, but I know what you mean. I bought a couple of NOS 12AX7's (Brimars, Philips, Telefunken) a couple of years ago because I couldn't find a quiet new 12AY7 for the tube driver position in a Princeton reverb (I'm sure there are good new ones though). During that time I experimented in the PR and a JTM45 with all the different NOS tubes in the preamp.

    Honestly I was kind of bummed that there was a difference, the old ones sounded nicer. I wish there wasn't a difference between the JJ's I had in and the old ones I bought, because the NOS tubes aren't cheap. I ended up putting a NOS tube in the V1 position on the two amps and saved the rest, the other positions still have the JJ's.

    Of the "new" tubes I had (today they are like 10 years old though), the Electro Harmonix 6V6's were nice I thought.

    I would also be interested in hearing others experiences on new tubes today as I've been out of the loop for a couple of years .
    This is a song from the new album, it's a deep meaningful song this one... No, it's not whiskey in the fucking jar... Philip Lynott

  3. #3
    Les Paul Forum Member J.D.'s Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    I agree, some of the old European and US tubes I tried years ago were really good. Problem is these days they've gotten expensive, or at least NOS have (used ones can be very reasonably priced). Only way to try them is to buy them. From what I read the older tubes, generally speaking, tend to last longer (meaning total hours of use).

  4. #4
    Les Paul Forum Member thin sissy's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    Yepp, that sounds right. The older tubes in V1 have outlasted the others.

    I wonder, with the big tube amp craze, will there start a 2old timey hipster" tube factory that builds them like the old ones? If it did, they would probably be as expensive as nos tubes though
    This is a song from the new album, it's a deep meaningful song this one... No, it's not whiskey in the fucking jar... Philip Lynott

  5. #5
    Les Paul Forum Member J.D.'s Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    If/when you find a vintage tube you really dig, there's always the question, will you find the exact tubes again. Not so much an issue with current production (although =C= is an example where it has happened).

    Since most current production tubes are fairly inexpensive, I'm ok with the slightly lower service life.

    Other problems I have with vintage tubes is identifying subtle differences, spotting fakes, knowledge of who made which rebranded tube, and sellers screen them differently - I don't have a proper vacuum tube tester to verify any claimed measured values.

  6. #6
    Les Paul Forum Member ourmaninthenorth's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    I just like the old valves and will always seek them out over the new stuff..and considering some of the eye watering prices of the NOS, I definitely can hear the difference, honest...

    Shakespeare walks into a pub, the Landlord says "get out, you're Bard"

  7. #7
    Les Paul Forum Member J.D.'s Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    No kidding

    For the most part I find them all sounding "good", just slightly different. Finding a great sound with a very low noise floor is what I'm after, and interestingly the relatively cheap Chinese-made tubes seem best so far. Might be due to the Groove Tubes screening process. Only a couple of the really low noise new style preamp tubes with the short plates and spiral filaments (Sovtek IIRC) sounded really dull and lifeless. Guess that's the trade-off for a really low noise floor. Might be good for a really bright and screechy amp though.

  8. #8
    Les Paul Forum Member ourmaninthenorth's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    This is an interesting read, though not claiming to understand nuclear physics - which appears to be a prerequisite in any discussion of this stuff, I kinda like this geezers findings when saying ...


    "...The Mullard is a superior device from a bygone era..."


    The errand is pretty simple for us enthusiasts I reckon, second best is never going to quite cut it...get yer wallets out Lads, and seek out them Blackburn's...


    https://www.effectrode.com/knowledge...al-comparison/
    Shakespeare walks into a pub, the Landlord says "get out, you're Bard"

  9. #9
    Les Paul Forum Member J.D.'s Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    I don't subscribe to the single universally best tube theory. Much like guitars, there's different tools for different jobs.

    Don't even get me started on speakers...

  10. #10
    Les Paul Forum Member ourmaninthenorth's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    Quote Originally Posted by J.D. View Post
    I don't subscribe to the single universally best tube theory. Much like guitars, there's different tools for different jobs.

    Don't even get me started on speakers...
    Me neither, but I gravitate to those favourites that I've enjoyed enormous success with.

    They just happen to have Mullard, Brimar and GEC on the labels..I have to keep this stuff simple or I just naturally fall down every single rabbit hole...

    I think I liked it better when I was a young geezer when you just played what you could get your hands on.

    Shakespeare walks into a pub, the Landlord says "get out, you're Bard"

  11. #11
    Les Paul Forum Member J.D.'s Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    Yes and no. New Sensor clearly has made a modern tube that is not physically identical but has remarkable similarities to the Mullard original, and available at a fair price. Not unlike what Gibson is doing with the Historics.

  12. #12
    Les Paul Forum Member sonar's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    I think I made an honest effort with eastern european, new production 9-pin preamp tubes. Maybe a weirdly large amount of bad luck was involved, but I experienced a lot of rattle, noise and the worst offender, microphonics with modern euro 12AX7's. I've since reverted back to all old production 9-pin pre's in all but one of my amps.

    Better luck with modern 6V6's (I like both JJ and Tung Sol 6V6's) and still evaluating 6L6 varieties.

    I'm completely lost with EL34's. I think I currently have a quartet of JJ's in my old Super Lead? They're fine, not great, not as creamy as the pre-war Tesla's that used to be in that amp.

  13. #13
    Les Paul Forum Member ourmaninthenorth's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    I believe a firm called Techtubes had a go at getting a venture off the ground making Mullard valves using old Blackburn machinery. It went under though after a few months, maybe 7 years ago?

    There is a similar venture doing the same with Brimar valves, again with old Mullard machines, that is still a going concern, let me have a dig around and see if I can't find the links.
    Shakespeare walks into a pub, the Landlord says "get out, you're Bard"

  14. #14
    Formerly Tweedguy buckaroo's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    Several years ago I purchased a large bulk supply of NOS original boxed Amperex 12AX7 tubes made in the mid 1960’s. I would say those and 1960s era RCA 12AX7 and have proven to be my favorites in just about any Fandor amp. The biggest sleepers are probably the GE tubes From the same era.

  15. #15
    Les Paul Forum Member J.D.'s Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    Didn't a lot of those tube operations (including equipment) move to far east countries as tube production began to wind down?

    Would be interesting to see if someone could revive those old machines and make exact replicas of the old tubes. I'm sure Reflektor and Shuguang have the ability.

    Thanks for the tip on the RCA and GE tubes

  16. #16
    Les Paul Forum Member ourmaninthenorth's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    Quote Originally Posted by J.D. View Post
    Didn't a lot of those tube operations (including equipment) move to far east countries as tube production began to wind down?

    Would be interesting to see if someone could revive those old machines and make exact replicas of the old tubes. I'm sure Reflektor and Shuguang have the ability.

    Thanks for the tip on the RCA and GE tubes
    My understanding is that the Brimar project in the UK has been about bringing those Mullard machines back home from Eastern Europe, in an attempt at getting them re-commissioned to start making valves in Britain again.



    The link to a website I have is a little confusing, I need to read it properly before I post it here.

    Shakespeare walks into a pub, the Landlord says "get out, you're Bard"

  17. #17
    Les Paul Forum Member J.D.'s Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    Yes, I think I found the Brimar project information that you are mentioning. Interesting. Looks like they have quite a bit of work to do yet.

    On the same website, seems they are selling new production tubes under the Brimar name, but I'm assuming they are buying someone else's tubes and just rebranding them Brimar. Or are these their own exclusive tube designs just made by a 3rd party?

  18. #18
    Les Paul Forum Member ourmaninthenorth's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    Quote Originally Posted by J.D. View Post
    Yes, I think I found the Brimar project information that you are mentioning. Interesting. Looks like they have quite a bit of work to do yet.

    On the same website, seems they are selling new production tubes under the Brimar name, but I'm assuming they are buying someone else's tubes and just rebranding them Brimar. Or are these their own exclusive tube designs just made by a 3rd party?
    I mailed them that very question yesterday, based entirely on reading their mission statement......

    ".......Our aim is to produce high quality vacuum tubes at an affordable price right here in Great Britain where the best engineers are today, still hungering after the reliability and classic sound they once produced. The process is complex as you can see from this public information film from the 1940s.



    Brimar thermionic products is the result of the frustration of not being able to purchase high quality valves at a reasonable price. Formed from ‘The Great British Valve Project’ we have used the expertise of many engineers who have provided us with their preferred list of thermionic tubes. Whilst this may not be everybody’s choice, our tube range certainly embraces the wide scope of affordable valves and this we have to accept until the return of British valve manufacturing where Mullard, Brimar, Hivac & the MO Valve Co. were the world leaders....."
    Shakespeare walks into a pub, the Landlord says "get out, you're Bard"

  19. #19
    Les Paul Forum Member renderit's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    I have been collecting NOS tubes for quite a while.
    I have spent some money in the 'nuclear' options area.
    The old military GE, RCA, Mullard and Raytheon are my primaries.
    And quite a few "off branded" tubes because of it which were supposedly put out by the biggies but branded for consumer use?
    Now I am playing with some cheaper NOS tubes that need adapters to work in the areas I need them.
    I am finding some real surprises there.
    I have been very happy with how they sound.
    But I will admit that some new ones are not bad at all.


  20. #20
    Les Paul Forum Member corpse's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    Finding old tubes is my alter egos mission. The only way is by word of mouth or scouring musty junk shops. Given the hours I have spent it is largely a worthless endevour. I have had a couple good scores. But really a waste of time.
    That said old ones are the best. I would really like to get hard results on investigations of new production tubes and exactly which slots I should be putting my NOS glass in.

  21. #21
    Les Paul Forum Member ourmaninthenorth's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    Quote Originally Posted by renderit View Post
    I have been collecting NOS tubes for quite a while.
    I have spent some money in the 'nuclear' options area.
    The old military GE, RCA, Mullard and Raytheon are my primaries.
    And quite a few "off branded" tubes because of it which were supposedly put out by the biggies but branded for consumer use?
    Now I am playing with some cheaper NOS tubes that need adapters to work in the areas I need them.
    I am finding some real surprises there.
    I have been very happy with how they sound.
    But I will admit that some new ones are not bad at all.
    Which new production's in particular Ren?
    Shakespeare walks into a pub, the Landlord says "get out, you're Bard"

  22. #22
    Les Paul Forum Member ourmaninthenorth's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    Quote Originally Posted by corpse View Post
    Finding old tubes is my alter egos mission. The only way is by word of mouth or scouring musty junk shops. Given the hours I have spent it is largely a worthless endevour. I have had a couple good scores. But really a waste of time.
    That said old ones are the best. I would really like to get hard results on investigations of new production tubes and exactly which slots I should be putting my NOS glass in.
    Those amps you have deserve old glass in all their holes, half measures avail us nothing......
    Shakespeare walks into a pub, the Landlord says "get out, you're Bard"

  23. #23
    Formerly Tweedguy buckaroo's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    Quote Originally Posted by J.D. View Post
    Didn't a lot of those tube operations (including equipment) move to far east countries as tube production began to wind down?

    Would be interesting to see if someone could revive those old machines and make exact replicas of the old tubes. I'm sure Reflektor and Shuguang have the ability.

    Thanks for the tip on the RCA and GE tubes
    From everything that I have read, it is not just about using the old machines and manufacturing gear but equally about (or more so?) the chemical engineering sciences. The "sonics and longevity" of the old tubes are related to the the metalurgy (metal element composition) and electron chemistry of the coatings applied to the cathode (ie...cathode chemistry). Of course I am certain the manufacturing gear and quality control of production play a big role as well.

    One finding of newer production tubes is that their "specs" are reputed to vary quite a bit from each production run. In the old days the specs were very tight and pretty consistent. Randomly select most tubes from the batch and you could measure very similar electrical characteristics. It is suggested by many tube vendors that those specs are less consistent in newer tubes.

    Having said that, I agree with the OP that I have indeed tried some new tubes from both Russia and China that can sound great. I am certain I would be using them if I did not have a room full of NOS tubes. I bought them from from old local TV /radio repair shops that were selling their stock in the 1980's for pennies on the dollar. They have moved with me over the decades from various residences. Needless to say I overbought! I did have the good fortune to test all of them on a tube tester back in the 1980's. At this point I will admit that as a young, regular gigging local musician, I way over purchased my tube supply all those decades ago.

    Oh well, it is fun to roll tubes... Ren mentioned the Raytheon tubes. Another incredible sleeper brand! Original black plate Raytheon 12AX7 and 6V6 are peerless in a blackface Deluxe Reverb amp. Another killer combination are original Tung Sol 5881's and RCA 7025 in a Fender 6L6 spec amp.



    Buck

  24. #24
    Les Paul Forum Member ourmaninthenorth's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    Here's another old film...


    Shakespeare walks into a pub, the Landlord says "get out, you're Bard"

  25. #25
    Formerly Tweedguy buckaroo's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    I had seen that video before and was good to see again. Thanks for posting. We shall never see the likes of high quality vacuum tube manufacturing again...not like Mullard at Blackburn. The few dozen old 12AX7 Mullards I have, 161 and 163 production codes, all sound fantastic. They generally sound just slightly darker than most of their USA made counterparts. And sometimes that can be good in certain Fender amps IMO. The Mullard rectifiers are peerless in my estimate, unless you really need sag, they just can't be beat for reliable service and longevity.

  26. #26
    Les Paul Forum Member ourmaninthenorth's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    Quote Originally Posted by buckaroo View Post
    I had seen that video before and was good to see again. Thanks for posting. We shall never see the likes of high quality vacuum tube manufacturing again...not like Mullard at Blackburn. The few dozen old 12AX7 Mullards I have, 161 and 163 production codes, all sound fantastic. They generally sound just slightly darker than most of their USA made counterparts. And sometimes that can be good in certain Fender amps IMO. The Mullard rectifiers are peerless in my estimate, unless you really need sag, they just can't be beat for reliable service and longevity.
    My pleasure Buck.

    You sure have some fine valves in your collection.

    From memory the change codes I6 (code for ecc83) and the 1 & 3 denoting copper support posts? as opposed to the later nickel. Don't suppose you have any of the date codes to hand? We can have a little fun trying to decipher them.

    It's been a while since I talked about the nitty gritty on these wonderful valves, forgive me if my memory has faded. My interest certainly hasn't. Thanks for starting the trip down memory lane JD.

    Shakespeare walks into a pub, the Landlord says "get out, you're Bard"

  27. #27
    Les Paul Forum Member J.D.'s Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    You're very welcome. While at one time I did inadvertently have/buy what now would be considered higher quality and/or vintage tubes as I went through a Marshall amp phase, I never paid too much attention to a lot of the details. I guess I was more concerned with the stuff actually working than having the optimal tubes. I'm looking forward to learning a bit this go round.

  28. #28
    Formerly Tweedguy buckaroo's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    Quote Originally Posted by ourmaninthenorth View Post
    From memory the change codes I6 (code for ecc83) and the 1 & 3 denoting copper support posts? as opposed to the later nickel. Don't suppose you have any of the date codes to hand? We can have a little fun trying to decipher them.

    My understanding is a bit rusty to immediate recall but here is what I think I remember regarding Mullard 12AX7:

    The I61 is earlier production 1960's until about 1964, then starting about 1965 the code changes to I63. (Some refer to these as 161 and 163 by the way.)

    All of my examples have what I think of as "shorter" plates and they have a halo getter. The Mullard short plates seam slightly taller than the USA short plates but no where near as tall as USA long plates. The Mullards I have all have a "B" in the etched code indicating they were made at the Blackburn factory.

    I think of the various tube eras of production much like that of guitars and amps: time passes and things change. Certain eras and locations of manufacture can be associated with certain sonics...given a reliable specimen to evaluate. The sonics from any given era sound a bit different for each factory. It is the factory and era of production that are key to understanding sonics and absolutely not the brand inked on the tube.

    I am certain others know way more than me so maybe they will chime in and contribute. I find tube sonics fascinating and I love to roll tubes to listen to the subtle differences. The only thing more fun is playing the guitar! I will say that generally I prefer the sound of USA made tubes except for the tubes made in the 1960's at the Heerlen Holland factory, often branded as Amperex. Those 12AX7s are my personal favorites in Fender amps.

  29. #29
    Formerly Tweedguy buckaroo's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    Here is a Mullard info link. There are many online but this reads like what I remember and agrees with what you said regarding the copper grid supports. I have not studied these codes in detail in years. Just a reminder that metallurgy and cathode chemistry are so key to a tubes performance. Some suggest that new tube production metallurgy as akin to soup can metal. The engineering and quality control of the old days is something to cherish in my view.

    And if new tubes sound good then what fools we old men have become...some will say

    https://www.effectrode.com/news/tube...st-tube-codes/

  30. #30
    Les Paul Forum Member J.D.'s Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    Great reading and video, thanks for sharing.

    I agree, for applications other than tube amps, those tubes likely were built to higher standards than current production which is mainly made for audiophiles.

    I'm just glad that we tube amp guys have some options again for buying decent tubes at reasonable pricing.

  31. #31
    Les Paul Forum Member ourmaninthenorth's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    One of my favourite amps of the last decade, a teeny tiny little thing, with the voice of an angel.

    American built, British valves...for me a match made in that place.

    I have it back with me for a while on loan, for an imminently incoming guitar; more to follow on that - to quote Mr Runyon, "A Story Goes With It"





    Brimar 12ax7, Mullard EL33 (KT61), Brimar 6X5GT rectifier.




    Shakespeare walks into a pub, the Landlord says "get out, you're Bard"

  32. #32
    Formerly Tweedguy buckaroo's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    Beautiful looking amp. What are those tubes?

  33. #33
    Les Paul Forum Member ourmaninthenorth's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    Quote Originally Posted by buckaroo View Post
    Beautiful looking amp. What are those tubes?
    The bottom picture - a Brimar 12ax7, A Mullard EL33 (KT61) and an RCA 6AX5GT Rectifier.

    The top picture (valves running) - as above but with a Brimar 6X5GT (EZ35) Rectifier.

    Aesthetically it's a beautiful amp, sonically it's better. It's an Emery Sound MicroBaby.

    http://www.emerysound.com/

    Shakespeare walks into a pub, the Landlord says "get out, you're Bard"

  34. #34
    Les Paul Forum Member
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    How about the Tungsol EL-34's that Marshall has been using the past few years ?

  35. #35
    Les Paul Forum Member J.D.'s Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    Yep, saw those. Must be ok if Marshall is using them as OE.

  36. #36
    Les Paul Forum Member Jeff West's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    If you want excessive details on the progression of original short plate Mullard 12AX7s, this was first posted by me on TGP awhile back:


    "Mesa- Here's something still posted in this forum 2011 that might be of interest. Happy Thanksgiving to all-

    Of Blackburn-made ("B"=coded) short plate 12ax7s, the sequence is as follows:

    Initial appearance is 2/59, coded "I61". Note that long plate versions made at Blackburn coded "f92" continue simultaneously through at least 8/59, possibly even later that year.

    These 1959 "I61" are distinctive in that they have:
    four seams on top like the longplates;
    silver colored grid rods (unlike the longplates and later I61);
    top mica spacer with evenly-spaced "teeth" all the way around.

    I am of the opinion (at least some of the time!) that first year production I61s from Blackburn tend to sound a little different than all other versions. But might be my imagination.

    Starting around 10-11/59 and for at least 2-3 months transition period, the code remains "I61" but:
    the grid rods go to bright copper;
    mica changes to "skipped teeth" on top perpendicular to the plane of the plates (and ever after);
    seams go from 4 to 2 on top.

    I61s with "B" codes continue with above changes through 4/64; e.g., grid rods are copper, etc.

    In 4/64 and 5/64, there are a few "I62"s that otherwise look the same, copper grid rods, etc. These are the only year/month codes I've seen for I62s from Blackburn (add: Thom pointed out one from first week of June). It's almost like "I62" was a mistake for these, or something changed rapidly.

    Starting approximately 5/64 or so, code changes consistently to "I63" for Blackburn made 12AX7s. Grid rods remain copper.

    In early '66, first few months, grid rods change to silver color not copper. Type code remains "I63", and remains "I63 for these waffle short plates from Blackburn through their entire run, i.e., until 1978 or so, possibly slightly later. Almost all although not nec 100% of these have 2 seams on top not 4.

    You can note also that, until the late '60s, the halo getter ring was welded to a straight rod, i.e., the halo is perpendicular to the rod. By 1969, they were usually bending the rod, the halo was welded parallel to the bent top part of the "l-shaped" rod. This seemed to have started sporadically slightly earlier, but not before ca. '67. So if you have, say, "I63 B6E3" with silver grid rods, if the halo rod is straight invariably it will be 5/66 and if it is "L-shaped" invariably it will be 5/76.
    Jeff W."
    Last edited by Jeff West; 03-27-19 at 04:04 PM.

  37. #37
    Les Paul Forum Member corpse's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    I patrol Craigslist regularly- I live near Atl and there is something almost daily to make me sit up. Yesterday it was a guy with a bunch of tubes. I have bought from him before years ago- everything tested strong.
    $310 for the following- all are old pulls- prices are ea:
    Telefunken diamond logo 12AX7 $50 (3)
    RCA Black plate 12ax7 $45 (1)
    RCA gray plate !2AX7 $25 (6)

    I put a Raytheon 12ax7 into the V2 slot in my 62 VL and it certainly got more authority. I am going to try the TF's in my Marshall 2061RI. The prices appear fair.

  38. #38
    Les Paul Forum Member renderit's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    Raytheon ROCKS!

    As do BUGLE BOY, GE, and many un-trademarked military.


  39. #39
    Les Paul Forum Member corpse's Avatar
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    Yes- and the VL also has new matched (32/33) VOS GE 6L6GC power tubes- that might help too.

  40. #40
    Les Paul Forum Member
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    Re: Sucked Back Into Tube Rolling - Anyone Else?

    I don’t ever remember not using NOS anything TBH, but in the spirit if this thread I bought some new 12ax7’s to see what’s up

    Not bad at all actually. I went through the three positions on a JTM45 (with clear glass GEC’s). I tried the Mullard, Tung-Sol, and Svetlana re-issues. The main thing I noticed was they all sounded a bit more modern (a little more compressed and a little more gainy) than the NOS tubes - for many that migjt be a plus! For my taste though, I found the New Sensor version of the Svetlana the most “vintagey” tube. Less “gainy” and a bit more middy. I’d be totally happy with it if I ran out of my Mullards. I tried just using an NOS Mullard in V1 and the re-issue Mullards in V2 and V3 and it still resembled a more modern sound. I put the Svetlana in V3 (PI) and it was much better.

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