The original article was from Kodiak consulting. Good thing I saved a copy.
Thanks for the link to this one.
-Original Message-
From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Donald E. Pauly
Sent: Thursday, May 11, 2017 6:57 PM
To: time-nuts; Donald E. Pauly
Subject: [
θ°μΩω±√·Γλ
> WB0KVV
>
> -- Forwarded message --
> From: Bob kb8tq
> Date: Thu, May 11, 2017 at 4:28 PM
> Subject: Re: [time-nuts] HP10811 Oscillator Thermal Fuse
> To: Discussion of precise time and frequency measurement
>
> Hi
>
> A bit in jest:… tha
Hi
A bit in jest:… that compares to 3,957 incidences of open fuses that had
nothing to do with
a thermal runaway. Of those, the majority 3,721 resulted in the 10811 being
tossed
in the garbage as “another junker”……(yes, those are estimates, but I’d bet they
are close
based on the number of 1081
On 5/11/2017 4:25 AM, Bob kb8tq wrote:
Ultimately it all came to no good. The energy conservation rules simply took
over. Shutting
down everything during off hours became the way a lot of outfits did things.
Don’t turn off all
A couple of comments on this, probably no surprise to many
time n
Hi
> On May 11, 2017, at 11:22 AM, Bill Hawkins wrote:
>
> Labs could have used a common gas heater for the crystal ovens, with a
> bit of rewiring.
>
> No fire hazard there - you've got a chimney. Also, flame safety is well
> developed for gas heaters.
>
> Would have required throttling gas
Labs could have used a common gas heater for the crystal ovens, with a
bit of rewiring.
No fire hazard there - you've got a chimney. Also, flame safety is well
developed for gas heaters.
Would have required throttling gas flow control.
Bill Hawkins
Another possibility is circulating hot water.
Hi
Ok, well since I was *asked* to say more :)
Long ago heavy users of this sort of gear figured out that you wanted to keep
the OCXO’s on
all the time. That was the way to make the gear the most stable. That is the
way you
can use your counter / generator / whatever when you get to work in
Hi
You will get a lot of diversity of opinion on the topic of the thermal fuse on
the 10811.
My feeling is that they are a nuisance and contribute very little to the
design. I’d just
short it out and move on. In the era of failure prone heater transistors or
faulty thermistors,
the fuse may ha
