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Ask KG... he would know.

Someplace like this American Science & Surplus : Search Results for "electromagnet"

Actually 7812s and 7912s. Looks identical to morphsci's. I'm going to leave his at 12V and do a 15V PSU for it, though the PSU can be dropped to 12V by pulling one resistor (R10), which will be socketed. Won't even overheat like a typical 317/337 would if you made it pull 3 volts more across the regulators. Thanks for looking and for taking the pics Hydro!

How'd you do that?

Next thing ya know he'll be looking for a mimeograph machine...

Stay safe man!

Mine are just a set of the ball allen wrenches. I don't even think it is the smallest size, and I got these either at an Ace Hardware or Home Depot / Lowes. Something like this (Lowes): 13-Piece Ball Plastic Handle Hex-Torx Key I have a couple of sets, both standard and metric. Damn handy as long as one of the kids hasn't run off with it The size you need for these is 1/16". The sets have a smaller one as well, 0.050".

I would think the biggest problem would be having 6 strands or so of 18ga wire (Jena, whatever ) going to a 30ga pin in a dock. That's just fucking stupid, or as Roam said over there: The stupid, it burns!!!

I sent an email to Monolithic Sound regarding a PSU they used to make, the MPS, for Audio Alchemy equipment. I was surprised to get a response from Dusty Vawter (CI Audio): I was having a hard time trying to correlate an original +/- 12V supply with 12V regulators as this wouldn't be enough to have them regulate. Original equipment of 9V regulators makes alot more sense. Hydrocity: Any chance you could look inside yours and see what is in there? I can give you the allen key size if you need it.

I sent an email to Monolithic Sound regarding a PSU they used to make, the MPS, for Audio Alchemy equipment. I was surprised to get a response from Dusty Vawter (CI Audio): I was having a hard time trying to correlate an original +/- 12V supply with 12V regulators as this wouldn't be enough to have them regulate. Original equipment of 9V regulators makes alot more sense. Hydrocity: Any chance you could look inside yours and see what is in there? I can give you the allen key size if you need it.

What's missing in the schematic? I assume this is the BH you are talking about?

Seems that all of us forget from time to time that "I don't know" is a perfectly valid answer...

Yes it would! Trying to find #&!*^ 0805s or their ilk after I drop them and they go under my workbench is a massive fail exercise. Strangely, both my kids liked doing SMT better than thru hole. A good pair of tweezers is invaluable as well (think I found the ones I use at one of the bead shops my wife frequents). Now there's a hobby

There was a reason I had a beard for 20+ years. Always loved that mothers cover

I agree. I wondered what became of her and if someone had pissed her off or something. Real life? What a concept...

Yeah, I initially took it that way as well (read it as used as a headphone amplifier). I run my HP amp right off the tape outs on my pre (SE) as well, works great; even better with mine in that the pre doesn't have to be on.

You're right... my opinion doesn't mean jack, but I stated it anyway. And yes, I have read much of this forum and site.

Inane posts like this are best left back over there (HF) imo...

Not sure what you are showing me there Marc... those do look a bit beefier than most shunt regs I have seen. The DEXAs surprised me in claiming 650mA.

The output FETs run hotter than hell in this amp, so any heat coming off the internal regulators is miniscule in comparison (so far I haven't relt any heat coming off these to speak of). I really don't think there is room to lay those DEXA regs down (this thing is rather small physically, and the internal height is not much more than a 7812/7912. I like Tent products, but his shuntregs don't handle enough current for this (wrong product forthe job). I really think just an unregulated supply capable of 0.5A per rail at around 14V would be perfect for this... I may just toss something together quickly and listen to it.

Looks nice, although I'm not familiar with (as in never heard of) Wilton. A bit bigger than mine (10" Delta); could come in useful if you decide to build yourself a turntable, etc.

Yeah, I had found DEXAs website. The point is I doubt that they outperform the sigma, but even if they do, they wouldn't fit (too tall).

Well, I could pull the on board regulators and jumper the in/outs for use with the sigma22. DEXA would probably make the sigma22 seem cheap, and probably wouldn't outperform it. $560 for a clock? Hehe... DIYHiFi.org • View topic - cdm9 transport mod: HELP

Something like this: PAiA - K114 Dual Unregulated Power Supply, Building Block Kits, K114

I talked to Jim (morphsci) via pm and he sez go for the sigma22. That said, the one option I hadn't priced out for him would be to build a dual unregulated PSU putting out +/- 15V (or 14.5) and let the internal regulators handle it. With the current load thru this thing, it is hard to come up with adequate heat sinking for a pair of Treads, at least from what I saw playing around with Tangent's power supply estimator. The 3.7 C/W heatsink he uses as a default won't fit on a Tread as far as I can tell... Since internally, this thing uses a pair of regs per rail, it appears it would handle it without a problem. Any pointers to commercially available boards for a dual unregulated PSU? I took a look at Welborne Labs, but the dual PSU they have is as expensive as the sigma22 and doesn't seem to be as good (non-tracking, looks like a simple LM317/LM337 job). I suppose I could lay something out myself and home etch it... I'm a bit uncomfortable doing this for someone else though. EDIT: took a look at Google and there appear to be quite a few similar +/- 25V capable unreg PSU boards and kits for <$20... this could be a good cheap option.