I was practicing the other day and noticed that my ÷ 13 JRT 9/15 amp's volume dropped significantly. Yesterday I turned it on and there was no sound at all.
Please note that the amp has a toggle switch (dual mode), that provides a selection of either 9+ Watts with 2x 6V6 tubes, or 15+ Watts with 2x EL84 tubes thus the name JRT 9/15.
Here is the troubleshooting I performed:
- Swapped guitar cable to make sure it wasn't the cable
- Checked the fuses - fuses were ok
- Checked the speaker connection - connection ok
- Looked at the tubes and notice that a rectifier and an EL84 tube were not glowing. I swapped the tubes in the corrisponding sockets and the tubes were fine.
Next, I called Fredric Taccone from ÷ 13. In addition to the steps I already tried, he suggesting swapping out the 12ax7 preamp tube. No luck their either.
Before I send this into the shop, is there anything else you can recommend trying?
Please note that the amp has a toggle switch (dual mode), that provides a selection of either 9+ Watts with 2x 6V6 tubes, or 15+ Watts with 2x EL84 tubes thus the name JRT 9/15.
Here is the troubleshooting I performed:
- Swapped guitar cable to make sure it wasn't the cable
- Checked the fuses - fuses were ok
- Checked the speaker connection - connection ok
- Looked at the tubes and notice that a rectifier and an EL84 tube were not glowing. I swapped the tubes in the corrisponding sockets and the tubes were fine.
Next, I called Fredric Taccone from ÷ 13. In addition to the steps I already tried, he suggesting swapping out the 12ax7 preamp tube. No luck their either.
Before I send this into the shop, is there anything else you can recommend trying?