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Finally worked through my Singlepower (Mikhail) closet of anxiety

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Mikhail had the tubes in another small business area (like the original spot he worked out of) he had rented, a short drive from there. Thats where my wife saw them on one of here trips to Denver. Not sure where he keeps them now.

Manley uses 5687/7044 in there preamps, amps and phonostage.

Mikhail had the tubes in another small business area (like the original spot he worked out of) he had rented, a short drive from there. Thats where my wife saw them on one of here trips to Denver. Not sure where he keeps them now.

Long since gone from there. He put together a pre-fab storage building on his property in Byers, shortly after he moved his plant. They were at the Byers facility, at least until he broke off contact.

  • 2 months later...

He's selling a ton of 5687s these days. Do you think these are mainly untested "pulls"? He's selling them as NOS.

Given the amount of bad tubes he's shipped out over the years I really can't see him testing them. A boneheaded move for him but that's Mikhail for ya, one stupid idea after another.

Given his reputation as of late, I'd say buying anything from him would be a really bad idea.

guzziguy, are you still enjoying your amp after the Doctor fixed it? Mine (MPX3) sure sounds a lot better after his intervention specially since the hum it had is gone. ;)

  • Author

i haven't had a chance to listen much recently. After Kevin repaired mine, it certainly sounds no worse and probably sounds better. I can't compare them side by side and I don't trust my music memory. I didn't have noise so no obvious (without opening the case) problems were fixed. However, I'm much happier because I know it is now safe and as close to spec as can be made.

It's a bit amazing just how tenacious the SP curse is, even my 100% rebuilt amp hasn't escaped it completely. Just about the only SP item I reused was some of the old wiring for the filaments. The only reason is that it is rather large and being solid core, can be twisted tightly and once fixed in place, stays there. The problem is the insulation though, it melts and splits even at low heat.

So one of the times I fired up the amp this week I cued up the first song and half way through it got quieter and quieter until distortion crept in. Hmmm, I looked at the amp, all leds lit and so were the 7n7's but the EL34's were dark. All voltages tested just fine on the PSU so it had to be the fubar filament wires yet I found nothing wrong with them or my soldering. I moved the wires around a bit and the problem hasn't resurfaced in the roughly 40 hours the amp has been in use since then but the wire is clearly cursed... :D

He's selling a ton of 5687s these days. Do you think these are mainly untested "pulls"? He's selling them as NOS.

I bought 10 of those 5687s from him. Resold 4, and used 4 myself, and they looked fairly new to me, and worked fine.

Maybe I just lucked out?

  • Author

The NOS Bendix 6385 tube I bought appears to be brand new too. Unfortunately it tests "Bad".

  • 3 weeks later...

So what is the latest with Singlepower? Is he still MIA? Out of business? Haven't been following it for some time now.

Still in hiding was the last I've heard. It's hard to make a comeback when you have tens (if not hundreds) of thousands in gear in for "repair" that would cost a fortune to fix.

Seems he still has thousands of 5687's to peddle. He hasn't totally vanished as he continues to offer new amps to people that placed orders a long time ago. Of those cases I've never seen an amp that actually had the features the people wanted, just some random stuff off the shelf. Could be something in for repair which he fixed and is trying to sell off.

  • 2 weeks later...

Someone smart should buy up the singlepower domain when it comes due...

Which would be in june of 2015...

Probably too long to wait for a joke...

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