Sources For Hard To Find Parts

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crochambeau
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Re: Sources For Hard To Find Parts

Post by crochambeau »

Indeterminacy wrote: Sun Nov 15, 2020 9:49 am
Need 2ea, 7000 uf 50v caps.
Are you yanking on chain here? I hardly think caps qualify as hard to find unless there's something specific about exactitude or form factor at work.

Adhere to the -10/+20% tolerance window and uprate voltage if desired. Everything is smaller these days, so fitment should not be an issue.
When in doubt, add resistance.

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Re: Sources For Hard To Find Parts

Post by Indeterminacy »

crochambeau wrote: Sun Nov 15, 2020 10:50 am Are you yanking on chain here? I hardly think caps qualify as hard to find unless there's something specific about exactitude or form factor at work.

Adhere to the -10/+20% tolerance window and uprate voltage if desired. Everything is smaller these days, so fitment should not be an issue.
When I cracked it open I made notes.
A quick check on Mouser resulted in a quick nope.
https://www.mouser.com/Search/Refine?N= ... 4288260379

But yes to everything you pointed out. There is a bit a sentimental attachment on this one. It was the first stereo power amp I got and it served me well for 10+ years in a compact small room guitar rig.
Volume is a fantastic thing,
Power and volume - Pete Townshend
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Re: Sources For Hard To Find Parts

Post by crochambeau »

Ah, your first post did not specify "Screw Terminal".

Honestly, if this was my baby I would grab a couple of these:

https://www.mouser.com/ProductDetail/Co ... oV7OI9w%3D

and fabricate a utility PCB to run those pins out to a plated pad that I can bolt existing stock wire to.

With a PCB it would be a snap to "fill in" a couple hundred uf (if desired, I'd honestly just run 6K8 and call it a day - it'll probably measure closer to 7K anyway) and throw some film caps for transient shunting while you're at it.

Or, if you want to go with the simpler screw only here are some options:

6K8: https://www.mouser.com/Passive-Componen ... =Pricing|0

Or you can size up to 8K2 (or 7K5, though while a member of the E24 preferred designations, it is something of a red-headed step child these days).

I don't know what the top end of your stock tolerances are, but me personally, I would avoid going too large based on the general fact that line voltages are a touch higher these days (YMMV) and transformer insulation generally does not improve with age.
When in doubt, add resistance.

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