I too have had a fuse open up due to a failed thermistor in a HP10811.
David N1HAC
On 5/10/17 7:43 PM, Dan Rae wrote:
As I reported the last time this subject came up, or maybe the time
before, the only time I had an open thermal fuse was in a 10811 that
had an open thermistor. I was able to replace that and get the OCXO
working, but if the fuse had been replaced with a wire link I'm sure
the entire oven would have been toast.
There have been two types of fuse fitted, all I those have are the
type that can be fitted with the plug in axial panasonic type, less
than a dollar from Digikey. The older ovens had a different type but
I imagine it's similarly easy to replace.
All my 10811s have the higher temperature Panasonic fuse fitted and I
sleep well at night...
Dan
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