OK Then

[Tone Meister]

"Also, the NFR is 1.4K and not 22K."

A few posts earlier you said it was 22k measured out of circuit?

Yes, it was under heatshrink so I had measured it in cirxuit amd got 1.4k. Out of circuit it measures 22k.

[nosaj]

And I am all about gutting it and rebuilding it right on an eyelet board. As soon as we figure this out, that is exactly what I'll do. The soldering is amateur and as pointed out above, some of the wiring and component placement are poorly implemented.

Don't underestimate the resistance of a bad solder joint.

nosaj

Just thinking out loud...using a scope at the input then input of 12ax7 and so on. You could see the signal size increase and at some point see it choke out.

[Tone Meister]

Oh I am all for you figuring it out, I am interested too.

I was thinking about cleaning up the mess, it seems that just rebuilding might make more sense. But DO solve the problem first.

And I am all about gutting it and rebuilding it right on an eyelet board. As soon as we figure this out, that is exactly what I'll do. The soldering is amateur and as pointed out above, some of the wiring and component placement are poorly implemented.

[Tone Meister]

Even went to the trouble to notate so in two spots


.

[Enzo]

Oh I am all for you figuring it out, I am interested too.

I was thinking about cleaning up the mess, it seems that just rebuilding might make more sense. But DO solve the problem first.

[Tone Meister]

Just a thought. The entire circuit is 12 resistors, and 6 caps. Might make sense to just gut it and build a new circuit.

Don't think I haven't already considered it. But my inquiring mind still wants to know what the builder did to purposely limit output to 1 watt. Can't be much, but I'm missing it.

[The Dude]

Sorry I asked!

I'd start here:

https://www.angela.com/5f1tweedchamp...cuitboard.aspx

Edit:<simulpost> Looks like Enzo beat me to it.

[Enzo]

Just a thought. The entire circuit is 12 resistors, and 6 caps. Might make sense to just gut it and build a new circuit.

[Tone Meister]

[Tone Meister]

[Tone Meister]

Unrelated to your question, but that cathode resistor and cap sandwiched together is a horrible idea!

Amp belongs to a buddy. He brought it by for me to "clean up." I want to sort out the power issue then start cleaning up the shoddy work.

[g1]

lol. Somebody start a 'what's for dog's supper' thread.

[The Dude]

Unrelated to your question, but that cathode resistor and cap sandwiched together is a horrible idea!

[Tone Meister]

[Randall]

"Also, the NFR is 1.4K and not 22K."

A few posts earlier you said it was 22k measured out of circuit?