[time-nuts] Fwd: HP10811 Oscillator Thermal Fuse

David G. McGaw david.g.mcgaw at dartmouth.edu
Wed May 10 23:20:42 EDT 2017

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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