[time-nuts] Re: HP-10811B thermal fuse
Taka Kamiya
tkamiya9 at yahoo.com
Sat Jan 20 10:29:20 UTC 2024
I seem to recall HP's official recommendation is to remove the fuse and substitute it with a simple jumper. I think there is a bulletin for this. (which I cannot find now)
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(Mr.) Taka Kamiya
On Saturday, January 20, 2024 at 01:19:58 AM EST, John or Susan via time-nuts <time-nuts at lists.febo.com> wrote:
The thermal fuse in my 10811B oscillator has opened. Troubleshooting
results say that the oven is ok, but I do need to replace the fuse and
cannot find any information about it. The manual says the Mfg. number
was 2110-0617, and the HP part number was 10811-80008. I am guessing
something on the order of either 1/2 A slow-blow or 1 A regular fuse.
Can anyone provide any guidance as to the proper fuse? Also any thoughts
as to why it failed would be appreciated. It is part of a home-brew
GPSDO, mounted in a case right next to ventilation slots.
John W2TX
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