Westrex RA-1574 scheme wanted
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- dubcutter89
- Posts: 360
- Joined: Thu Oct 19, 2006 6:30 am
- Location: between the grooves..
Westrex RA-1574 scheme wanted
hey!
i'm searching for the Westrex 1574 tube amp schematic (mine is Version E but i'm happy whith everything i get...)
would be great help on restoration project... thanks!
regards
Lukas
i'm searching for the Westrex 1574 tube amp schematic (mine is Version E but i'm happy whith everything i get...)
would be great help on restoration project... thanks!
regards
Lukas
- waltzingbear
- Posts: 3
- Joined: Sat Mar 10, 2012 2:17 pm
- Location: Portland, Oregon
- Contact:
I know its an old post, but its an even older schematic and manual!
http://www.waltzingbear.com/Schematics/Western_Electric.html
Alan
http://www.waltzingbear.com/Schematics/Western_Electric.html
Alan
keeping Portland safe for recording
- petermontg
- Posts: 610
- Joined: Sat Jun 26, 2010 7:51 am
- Location: Ireland.
Hi Alan, great first post thanks a million. Trying to gather as much Westrex manual as possible.waltzingbear wrote:I know its an old post, but its an even older schematic and manual!
http://www.waltzingbear.com/Schematics/Western_Electric.html
Alan
- dubcutter89
- Posts: 360
- Joined: Thu Oct 19, 2006 6:30 am
- Location: between the grooves..
hmm, i already got this one (and a couple of others...)
still searching for model/version E (i guess it's the last of the tube models)
nevertheless thanks for letting me/us know
Lukas
oh, and thank you for sharing all the other schematics etc... great website!
still searching for model/version E (i guess it's the last of the tube models)
nevertheless thanks for letting me/us know
Lukas
oh, and thank you for sharing all the other schematics etc... great website!
Wanted: ANYTHING ORTOFON related to cutting...thx
Alan, I placed a link to your manual on the Wiki- hope that's okay.waltzingbear wrote:I know its an old post, but its an even older schematic and manual!
http://www.waltzingbear.com/Schematics/Western_Electric.html
Alan
http://lathetrolls.pbworks.com/w/page/22975474/Scanned%20Manuals%20and%20Books
- waltzingbear
- Posts: 3
- Joined: Sat Mar 10, 2012 2:17 pm
- Location: Portland, Oregon
- Contact:
Re: Westrex RA-1574 scheme wanted
Hello
I want to repeat the scheme of RA-1574. I can not find the technical options have the transformer T-2, T-3. What is the model of transformers? Maybe someone has a winding data?
Changes? Photo?
Thanks for advance!
George.
I want to repeat the scheme of RA-1574. I can not find the technical options have the transformer T-2, T-3. What is the model of transformers? Maybe someone has a winding data?
Changes? Photo?
Thanks for advance!
George.
Re: Westrex RA-1574 scheme wanted
The Boden book has the skinny for a 'D': I have 'E's modded by Al Grundy which I have gone over fairly thoroughly, and the D skinny is VERY close to what I see on my bench. In fact, I am somewhat at a loss to tell the differences, so they must be either subtle, or in a place I haven't touched, or wiped by Al. I suspect that the output transformer MAY have taps for ultra-linear operation, but I have not broken the harness yet to see, as the 6146s that Al used would flip out with such a high screen voltage, without substantially raising the bias. He runs the screens at 180 volts (191 measured zener clamped), and I found that to be necessary (the hard way) to keep plate currents in tow. As such the amps put out just a hair under 60 watts (1kHz) before parasitics begin to rear their ugly heads, and that's on a resistive load! If I sort these things, I will post what I find.
Scully "500" with Westrex 3DIIa,
RA-1574E amps.
RA-1574E amps.