Princeton 6G2 from Hammond L-100 (A-043) chassis

[WimWalther]

The few layouts I've seen either have the grid stoppers mounted on the board or have them soldered to pin 2 with the dangling end soldered to a wire going to the board (I don't like that idea).

Can't say that I much care for that sort of thing, either. Falls under my definition of sloppy workmanship.

So, what are your impressions with the amp? Did the presence pot mod work as expected? Anything you don't like about the amp?

I really haven't yet had an opportunity to evaluate it. And being that I can't play, I'll need to get a neighbor to stop by and try it out - same guy who owns the blackface reverb I was asking about the other day.

Presence control isn't yet implemented. Need to find my big box of pots first, see if I have a suitable 5K for the job.

[WimWalther]

So we tried it out tonight, and results are so-so.

The trem stopped running for some strange reason, so that's a mystery. Only change was connecting the footswitch jack to the circuit - and I verified its not shorted. Goofy deal.

But something is too easily overdriven.. it won't make good power without producing an OD-style distortion. The PSU caps measure good, but there's still too much sag.. maybe the 5Y3 is a dud? Might be due to that 64R off of the rectifier, though it was obviously fine in its previous (Hammond) life. Then again, it ran a 5U4 in those days.. hmm


Anyway, nothing that can't be dealt with. Just need to dig into it.

On the bright side, it sounds like an EL84 amp - generous, warm low end with a clear & articulate midrange and not at all bright up top. Just what one should expect.