View Full Version : Yours for the cost of postage - a poorly little valve pre-amplifier
lordmortlock
24-12-2018, 09:58
This arrived here with the Firebottle phono stage I’ve just sold. I understand that it’s a Chinese pre that Alan made some clever alterations to, but sadly it was DOA. Two inputs, the valves you can see and some further mini bottles inside.
Anybody want a play with it? No idea what’s wrong, could be a simple fix.
Cover the cost of postage and it’s yours.
http://i65.tinypic.com/2qanztc.jpg
http://i65.tinypic.com/2eqfasw.jpg
I’ll have a play around with it Jake, please .
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lordmortlock
24-12-2018, 10:18
Perfect, nice one Andy. I’ll be able to put that valve that I was going to send to you about six years ago and never did :doh: :)
Perfect, nice one Andy. I’ll be able to put that valve that I was going to send to you about six years ago and never did :doh: :)
[emoji23][emoji23]
Top banana
Let me know how much I owe you mate , merry Christmas to you and your family.
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lordmortlock
24-12-2018, 10:31
Will do Mate, and to you! Have a good one
Firebottle
25-12-2018, 08:13
I'm here if you need help.
The valves should light up, if not check the rear fuse.
The valves run at +/- 32V, I've a circuit if you need it. The miniature valves have a heater voltage of 1.5V and are run from a bias of 5V from a regulator.
Merry Christmas all!
I'm here if you need help.
The valves should light up, if not check the rear fuse.
The valves run at +/- 32V, I've a circuit if you need it. The miniature valves have a heater voltage of 1.5V and are run from a bias of 5V from a regulator.
Merry Christmas all!
Thanks Alan, I may well be in touch .
Merry Christmas
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