[Amps] Henry 3K-A choke failure...workaround?

[Martin Sole]

If the amp was stored in damp conditions it is possible that moisture 
may be the culprit. You could try baking the choke in a low oven for a 
good period of time (?). That would be sure to expel any moisture. 
Failing that and with a rewind or replacement not possible then 
insulating it well from ground might be a reasonable work around. I 
would however be sure to label clearly inside the psu compartment what 
you have done. You might well remember but who knows where it ends up in 
the future. I have a friend who did that with the plate transformer in a 
Henry and it worked well.

You can use paxolin, perspex, pretty much anything you can get I guess 
but do label it!

73
Martin, HS0ZED


On 27/09/2019 09:07, jeff millar wrote:
> Hello wise ones...
>
> Bought a nice 3K-A at a flea market and made one SSB contact.  On the
> second contact it tripped off on HV overcurrent.  After some debugging, the
> Plate choke is leaky to ground at HV but open with an Ohm meter.
>
> Can I just put the choke up on insulated standoffs?
>
> Any other suggestions?
>
> thanks,
>
> jeff, wa1hco
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