Dear All,
attached pics of the amp (300B push pull).
are those transformers look familiar to you?
All if them have "made in england" marking.
What is this black box? a choke? a double interstage?
Many thanks,
Gennady
attached pics of the amp (300B push pull).
are those transformers look familiar to you?
All if them have "made in england" marking.
What is this black box? a choke? a double interstage?
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Many thanks,
Gennady
Well the 'black box' if it has just two wires coming off it as it seems to from your pix that would make it a choke. Four wires would make it an interstage or?...do you have some underside pix? Have you chased down the schematic, the wiring?.....where your mystery box goes to?
It looks like your amp is tube rectifyed...as in you most likely have a choke input PS. And that would be you "first" choke in the PS circuit.
It does have a fancy looking case granted....I like those little heat dissapation 'fins' up top.
The spacing IS correct, as a choke on a Choke input PS needs to be as far away as possible from other components so as to not induce currents in nearby structures.
______________________________________________________________Rick..
It looks like your amp is tube rectifyed...as in you most likely have a choke input PS. And that would be you "first" choke in the PS circuit.
It does have a fancy looking case granted....I like those little heat dissapation 'fins' up top.
The spacing IS correct, as a choke on a Choke input PS needs to be as far away as possible from other components so as to not induce currents in nearby structures.
______________________________________________________________Rick..
the amp is SS recitified.
it has 6sn7 driving all four 300Bs.
another one (ecc88 i think) is in PRE section and is overrided when using "direct" input.
all trannies actually run very cool, except the powe one........
it has 6sn7 driving all four 300Bs.
another one (ecc88 i think) is in PRE section and is overrided when using "direct" input.
all trannies actually run very cool, except the powe one........
inside pictures:
a little messy inside, isn't it?..........
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
a little messy inside, isn't it?..........
I think the black box is an "always on" power supply for the remote control system.
It's messy...
It's messy...
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