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Lord Valve wrote in message
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N Cook wrote:

Cut out in use then came back.
Next time failed to give output but owner noticed clip light in pre-amp
functioned as normal
Now I have it, I cannot induce it to fail.

Of course not. ;-)

Anyone know of generic/specific Eden problems?
Likely suspects the discrete wire IDC connectors for power and signal
interconnects, unsupported wire-wounds on end, mains thermal switch.
Anyone know the identity of the valve/tube ?

12AX7.

If it's got an effects loop (or pre-in pwr-out jacks)
check for dirty normalling contacts.

Lord Valve
Expert


Thanks for the info.
Do they remove the valve labelling ? no trace of anything on this one.
Send/return switches are the first things I look at with this sort of
problem along with speaker plug/lead
..
I wondered if there was any Eden specific problem areas. I've not checked it
out but is that a thermal cutout in the mains feed , rather than filter, to
monitor general chassis temperature, not the output N/O(cold) one for the
fan