The Amp Garage

Hi Erwin, I understand. Obviously I'm basing what I posted on my own experience with the cap can I posted the spec sheet to earlier. The negative common on it is isolated from the can itself allowing one to easily ground it where they wish.

You are correct. It took me reading it several times to catch on-if I did. The "Did I get it correct?" was actually meant for Ryan

martin manning wrote: ↑Mon Apr 22, 2024 6:12 pm

GAStan wrote: ↑Mon Apr 22, 2024 5:59 pmDid I get it correct?

Would you have bet money that you did? ;^)

Would I have won?

The swap between the 10k & 2.2M was either a tip I received from someone (likely) or based on observation of other amps. The stability of the reverb was not great with 2m2 in series with the reverb send pot. I also realized that feedback made much more sense with 2m2 and the 10k in series with the ...

I'm mistaken, I missed it before. The handrawn schematic does show 3 sections being used after the 4k7.

Rev 7 PDF shows the first section twice, once under the circled B before the triangle arrow, once again after.

The Layout shows 5 terminals on the can cap. Why? The gut shot you posted of #002 is very blurry and pixelated, and the two large resistors block all but one terminal. It's impossible to tell how many terminals are on that can. How do we know HAD used a C-EC20X-475 cap? Has someone documented it fro...

This is the 4x20uF I have experience with, and think of when I see 5 terminals on a 4 cap can.

Resurrecting an old thread... First, THANK YOU for all of the work you have done on SSS02!!! I think I see an error on the layout. On the final two 20uF filter caps in the can providing power to V1 and Reverb: B+ is tied to the Negative terminal of the can cap, then the 1k resistors to the the posi...

You're welcome Fran, I tend to "call it as I see it". I much prefer to leave positive comments :D A bit OT but because you asked: The cleaning/straightening can be a tedious labor of love. First if the resistor body or leads have adhesive residue I clean with alcohol and a paper towel. Some of these...

Thanks Ryan, for the history lesson and posting all of the work you have done

Resurrecting an old thread... First, THANK YOU for all of the work you have done on SSS02!!! I think I see an error on the layout. On the final two 20uF filter caps in the can providing power to V1 and Reverb: B+ is tied to the Negative terminal of the can cap, then the 1k resistors to the the posit...

Thanks Martin and Erwin.

My conclusion is that this is a great opportunity to experiment and find one's own preference. Maybe even change the 10k resistor to a potentiometer, connect the 2M2 FB to the wiper and make it adjustable.

I understand the layout version would have more feedback. I guess my question is "why?" Is the reverb too strong with the schematic version? Perhaps I just haven't been able to find a previous discussion on this, is there one?

The feedback for the reverb driver on the layout does not match the schematic. On the schematic the 2m2 resistor is connected to the potentiometer side of the 10k grid resistor. The layout has it connected directly to the grid. Is this intentional?

I received the order of Pihers from Fran a few days ago. The transaction was very smooth. Excellent communication! It took only a few messages to figure out what he had vs what I needed and agree on what would be purchased. The shipment received contained exactly what I was told would be sent. Could...