sunburst
Member
- Joined
- Dec 14, 2001
- Messages
- 370
well I just got myself a few jensens and I made some measurement and I found something very interesting..
I got five jensen copper foil 0.022 caps. their measurements are .0223, 0.0225, 0.0233, and the other two between 0.0225 and 0.0233
so they are well within the -20/+30% tolerance.
now here's what's really interesting. I measure the ceramic disk caps of my les paul after I removed them..
I have a digital multi-meter. when I measure the ceramic caps the readout starts from about 0.016 and gradually builds up to 0.022.. over the course of about 10-15 seconds. whereas with the jensens the reading almost JUMPS to 0.022
there is a huge difference in terms of signal response. I dont know how my multimeter measures the caps but I assume it must supply them with a low AC current and detects the residual charge.
in a relatively stable circuit.. this difference probably does not matter. but in a circuit with volatile signal flowing through. the slow "rise time" of the ceramic disk caps would definitely make a difference.. as it is slow to charge up.
I wonder if other have noticed this..
I got five jensen copper foil 0.022 caps. their measurements are .0223, 0.0225, 0.0233, and the other two between 0.0225 and 0.0233
so they are well within the -20/+30% tolerance.
now here's what's really interesting. I measure the ceramic disk caps of my les paul after I removed them..
I have a digital multi-meter. when I measure the ceramic caps the readout starts from about 0.016 and gradually builds up to 0.022.. over the course of about 10-15 seconds. whereas with the jensens the reading almost JUMPS to 0.022
there is a huge difference in terms of signal response. I dont know how my multimeter measures the caps but I assume it must supply them with a low AC current and detects the residual charge.
in a relatively stable circuit.. this difference probably does not matter. but in a circuit with volatile signal flowing through. the slow "rise time" of the ceramic disk caps would definitely make a difference.. as it is slow to charge up.
I wonder if other have noticed this..