The Amp Garage

Does anyone know OEM of these Groove tube's 12AX7?

12AX7R :
12AX7R2 :
12AX7R3 :
12AX7C : Shuguang(12AX7-C9)?
ECC83-S :

Thank you!

I tried my sho-bud pedal. I could understand what Brandon said. (boost high's the last few cm of travel.) But my pedal has noise when I move pedal, so I want to replace pot. The original pot is Allen-bradley 500kA, but it is hard to find now. Which pot is good? Please advise. Brandon, Did you get th...

Thank you!
I bought a sho-bud pedal.
I'll try it next week end.

Do you have an idea of the circuit of larry carlton's show-bud volume pedal? 1. FET installd 2. it has gain adjust http://personalpages.manchester.ac.uk/staff/rob.livesey/dumble/Larry%20Carlton/images/FET.jpg 3. Rick Wheeler says that "boost highs as the volume is increased ..." http://mr335.tv/?cha...

Do you have an idea of the circuit of larry carlton's show-bud volume pedal? 1. FET installd 2. it has gain adjust http://personalpages.manchester.ac.uk/staff/rob.livesey/dumble/Larry%20Carlton/images/FET.jpg 3. Rick Wheeler says that "boost highs as the volume is increased ..." http://mr335.tv/?cha...

Does anyone know the transformers(PT, OT, CH) of #234?
Please let me know.
Thank you.

Gary,
Thank you very much for your kindness.
But I live in outside US. (the other side of the earth!)

Thank you, everyone. I'm sorry for delay, I do not have enough time to check. 1.replaced all tube --> no change 2.changed speaker --> no change 3.changed leaddress around PAB relay and tone pots --> no change 4.if DRIVE is less than 9 o'clock, even if LEVEL and MASTER are 5 o'clock(=full), no oscill...

What is connected to red marked eyelet?
Is that used only when 0.01uF coupling cap?

Thank you Luthierwnc,
These are photos.
3 resistors of OD section are not soldered directly now.

same cuircuit as #124, but OD prenet trimmer is 100KB, Drive pot is 100kB.

I found that my amp oscillates in OD mode.(not with PAB) It oscillates when I hit 5th or 6th string, not big oscillation, but can hear. Probably 2Hz or so. Not oscillate(or very very small oscillation) higher string. This amp is non-HRM, funk's chassis. I'm trying to solve it, but can not find the c...

Ayan,
I could understand.
Thank you very much.

Ayan, Could you please let me know? I can not understand 4 wires from the hole near presence cap. 1. orange: FROM where?, TO send jack? 2. red : FROM where?, TO send jack? 3. yellow: FROM where?, TO where? 4. black : FROM where?, TO send jack gnd? +B rectifier diode parallel ceramic capacitor. pleas...

Gil,
Thank you for reply.

Does anyone have Mesa boogie thiele 1*12 cab?
How is the sound?
Is this good for dumble tone?
Which speaker is good? (EVM-12L, EVM-12S, Altec...)
Thank you.