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n cook n cook is offline
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Default Trace Elliot GP12 amp

Ron(UK) wrote in message
...
N Cook wrote:
Ron(UK) wrote in message
...
N Cook wrote:
Cut out because owner was connecting to speaker with lead connected to

amp
and touched the plug-tip to guitar strings.
I cannot find anything wrong with it now.
I downloaded , something like the schematic version here from


http://www.britishaudioservice.com/s...2012%20band%20
series.pdf

How did you find the circuit diagrams from the main site ?

Ron(UK)


I see what you mean , either cyber-squatters or
duff connection etc, ie waste of time

www.traceelliot.com/

www.trace-elliot.co.uk/

www.trace-elliot.com/



I found the diag you refered to, I just wondered how you found it, and
is there a way to navigate back from that url to an index of diagrams
fro the rest of the range. I`m more interested in the small acoustic
combos as they are fairly common around here.

I repair quite a few of the TE bass amps, almost always they fail
because they have been shaken apart rather than electronic problems.

There`s a well blown up Bass head under my bench which was never
collected by the customer after I declined to repair it. I think that`s
a GP12.

Ron(UK)


As i was, it is a diode pump, ladder steps 50V, 90V, 130V,170V , under load
of ECC83. I just cannot make the whole thing not work now, damned annoying.

Just downloaded the first schematic that turned up in a searchengine that
was not 18Mbytes or such. I don't like the 2sJ50, 2SK135 mounting
arangement. Cases electrically connected via black anodised? bolts and only
one of those each, relying on the pcb not to deform under screw pressure/
thermal effects. Exposed 230/110 mains select switch asking for trouble in
the UK, nothing unusual there.