Please help ID this DIY tube monoblocks

ViperZ · 3rd June 2009, 02:27 AM

Hi all,

I am looking at this pair of monoblocks, which will need rebuilding.

The seem to be a DIY pair, and the seller bought them at some estate sale, so he does not have much info on them.

Do these look familiar? Do 4 tubes on the channel and some kind of a can transistor ring a bell?

Schematic? Model #? Pleeease!

tinitus · 3rd June 2009, 03:32 AM

I have no clew really

But they could be of an age that maybe it could be some kind of Williamson design

Im no tube guy, but was just a thought

ethermion · 3rd June 2009, 03:46 AM

I would say it is a pile of transformers. You don't want the chassis as the layout is really awful. Looks like bad news to me. You probably don't want the schematic...

Looks to me like the builder had no "clew" either.

boywonder · 3rd June 2009, 02:32 PM

The amps are obviously someone's DIY project....

Do you own these or are you considering purchasing them?

Assuming that you have access to the amps....
If you can take the time to draw up a schematic and post it, that would sure help the folks on the forum to assist you.

Assuming the components are functional, I would get them up and running, then consider modernizing/modding them.

Do you know what tubes they were designed for?

ViperZ · 4th June 2009, 02:21 AM

Quote:

Originally posted by boywonder

Do you own these or are you considering purchasing them?

I am considering to purchase them. The price is pretty low.

Quote:

If you can take the time to draw up a schematic and post it, that would sure help the folks on the forum to assist you.

I can draw the schematic if I'll get them .

Quote:

Do you know what tubes they were designed for?

No clue, unfortunately, and that's my main concern.

I mean, I know I can gut those amps, get the transformers and design a new amp around them, but I don't really want to do it yet.

Gordy · 4th June 2009, 07:19 AM

While I admire your enthusiasm I would add a word of caution. The purchase price might be low, but the time, effort, and rebuild parts costs are likely to be quite high.

I see that there is a 'jack' input (next to the RCA socket), and it is marked with a telephone... is this the sort of amp that you really want?

If cost is an issue please consider investigating Bottlehead or Decware products as viable cost-effective routes.

Good luck,
G.

Klimon · 4th June 2009, 08:38 AM

I would consider buying it for the iron only (which looks quite heavy; the opts resemble Hammonds)... depending on the asking price. Circuit will be rubbish and the other parts dustbin or junkbox material.

Simon

3rd June 2009, 02:27 AM	#1
ViperZ diyAudio Member Join Date: Oct 2008	Please help ID this DIY tube monoblocks Hi all, I am looking at this pair of monoblocks, which will need rebuilding. The seem to be a DIY pair, and the seller bought them at some estate sale, so he does not have much info on them. Do these look familiar? Do 4 tubes on the channel and some kind of a can transistor ring a bell? Schematic? Model #? Pleeease!

3rd June 2009, 03:46 AM	#3
ethermion diyAudio Member Join Date: Apr 2005 Location: ffx station, va	I would say it is a pile of transformers. You don't want the chassis as the layout is really awful. Looks like bad news to me. You probably don't want the schematic... Looks to me like the builder had no "clew" either. __________________ -e

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3rd June 2009, 03:32 AM	#2
tinitus diyAudio Moderator Join Date: Nov 2005	I have no clew really But they could be of an age that maybe it could be some kind of Williamson design Im no tube guy, but was just a thought

3rd June 2009, 02:32 PM	#4
boywonder diyAudio Member Join Date: Jan 2008 Location: So.Cal.	The amps are obviously someone's DIY project.... Do you own these or are you considering purchasing them? Assuming that you have access to the amps.... If you can take the time to draw up a schematic and post it, that would sure help the folks on the forum to assist you. Assuming the components are functional, I would get them up and running, then consider modernizing/modding them. Do you know what tubes they were designed for?

4th June 2009, 07:19 AM	#6
Gordy diyAudio Member Join Date: Nov 2006	While I admire your enthusiasm I would add a word of caution. The purchase price might be low, but the time, effort, and rebuild parts costs are likely to be quite high. I see that there is a 'jack' input (next to the RCA socket), and it is marked with a telephone... is this the sort of amp that you really want? If cost is an issue please consider investigating Bottlehead or Decware products as viable cost-effective routes. Good luck, G.

4th June 2009, 08:38 AM	#7
Klimon diyAudio Member Join Date: Apr 2005 Location: Leuven	I would consider buying it for the iron only (which looks quite heavy; the opts resemble Hammonds)... depending on the asking price. Circuit will be rubbish and the other parts dustbin or junkbox material. Simon

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