I had a photography class this past semester for which I used my PPA as the subject of one of my assignments. I thought some of y'all might enjoy a peek at the final prints (or scans of the prints). Perhaps not "completely different," but definately "high brow" pr0n...

Oh, wait, that's the subject for my next "amp for sale" thread... I'm considering using cherry to build the enclosure for my next amp trick -- handcut dovetails, danish oil, hand planed, a raised panel perhaps, etc. However, I recalled a few things from other posts about shielding, the need...

Has anyone found a good solution for tapping machine screw threads on the hammond cases? I've now tried 6/32 and 8/32 screws with varying success. The case which is the owner of the 8/32's no longer has a removeable lid/bottom, but has already also stripped one of the thread sets out. I have...

Has anyone had success ordering Cerafines from Michael Percy Audio? They are listed as available from him on his web site and on Elna-America's web site, but his catalog does not list any. I believe that if these were not red and impossible to find in the numbers I need, that I'd not have to...

I ran out of parts to attach to my PPA board, so I started work on my battery board. This results in a couple of questions:Using the 24V elpac supply, what is the effect of attempting to charge 15 or 18 AAA 800mA batteries? If I jump up to the 30V I'm still shy of what Tangent's calculator shows...

Can anyone direct me to or does anyone have any of the following he or she would like to sell: 2 elna cerafine/silmic 25V 470uF caps 8 elna cerafine/silmic 35v 220uF caps I have requested a quote from Audio Grade, but have not heard back. I've checked the other places typically suggested...

I've been through the suppliers on the DIY Resource List rickr42 is maintaining, but outside of a fairly narrow selection of elna cerafine caps at Wellborne Labs and at Audio Grade, I am not finding what I would like to buy. Does anyone use a source for elna's caps that is not listed? As I'm...

Looking at tangent's guidlines and the supply of resistors currently on hand, I can populate thus: R3 330 R4 2.21k R5 2k or 2.21k R6 100k for a gain of ~6.6. Do I create any problems having R4 and R5 this close (or the same)? Also, what resistors above 100k are good to have on...

Can anyone provide a source (or the proper terminology) for nylon/plastic/non-conductive insulation washers for things like DC power jacks? I've been browsing through the stack of dead trees that Digi-Key, Mouser and Newark sent, but confess to being more than slightly whelmed. I've also asked...