Old PS questions (EL34 replacement), and any Aus people know BWD?

thevoice · 10th March 2008, 10:36 AM

Okay, I have a few questions.

I've just picked up a BWD 210 power supply, made in Melbourne, Australia, sometime in the 60's or 70's.

It's in very good nick, does 0-500V on two independent outputs (up to 300mA), a negative bias supply, 2x 6.3V (5A) supplies and some other useful things including a 620VDC non-variable output.

I've just opened it up and found 4 Telefunken EL34 (and an extra miniwatt). I'm not fussed about audiofool brands, but I'm not too keen on burning valves worth that much in a power supply. So does anyone know of any current production EL34's that are durable and long lasting at high voltage? I don't care about microphonics or any other audio only qualities.

The other question: Do any Australians here know of someone who may have manuals for old BWD gear? I'd love a manual for this thing but the internet has nothing...

Cheers.

10th March 2008, 10:36 AM	#1
thevoice diyAudio Member Join Date: Mar 2005 Location: Melbourne Again	Old PS questions (EL34 replacement), and any Aus people know BWD? Okay, I have a few questions. I've just picked up a BWD 210 power supply, made in Melbourne, Australia, sometime in the 60's or 70's. It's in very good nick, does 0-500V on two independent outputs (up to 300mA), a negative bias supply, 2x 6.3V (5A) supplies and some other useful things including a 620VDC non-variable output. I've just opened it up and found 4 Telefunken EL34 (and an extra miniwatt). I'm not fussed about audiofool brands, but I'm not too keen on burning valves worth that much in a power supply. So does anyone know of any current production EL34's that are durable and long lasting at high voltage? I don't care about microphonics or any other audio only qualities. The other question: Do any Australians here know of someone who may have manuals for old BWD gear? I'd love a manual for this thing but the internet has nothing... Cheers.

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