[time-nuts] HP 106B quartz frequency standard...the story

[Jim Palfreyman]

Thanks for that! - I do have a number of the 5254L units and one of
them is now being eyed off for organ donation. So thanks to all offers
for the 1854-0003.

The 2N1701 in a T08 is my next quest...

2009/8/10 Dave M <masondg44 at comcast.net>:
>> Hi all,
>>
>> Latest update.
>>
>> With some help and phone calls from Bill the fault seems to have been
>> isolated. I have removed Q11 from inside the oven and it is cactus. Q9
>> is also very suspect so I'm going to replace that for good measure.
>>
>> Q9 is a 2N1701 in a T08 package. Thanks to various people I should be
>> able to track one down. Q11 is marked as 1854-0003 and that's an HP
>> internal number and all I know. Might have to substitute that one.
>>
>> After all this I have some quality photos and can knock up some good
>> descriptions of the repairs and the 106B internals if anyone is
>> interested. Any websites hanging around that want to take what I have?
>>
>> Regards and thanks to all!
>>
>> Jim Palfreyman
>>
>>
>
>
> Jim, the 1854-0003 is a pretty common HP part in older eqpt.  If you have
> junked 5245L counter handy, it's full of them, especially in the decade
> counter PCBs.  If you don't have one handy, I have an assembly here with 8
> of them on it.  If you like, I can send it right away (if you're outside the
> USA, you pay postage).
>
> Dave M
> masondg44 at comcast dot net
>
> I went to a bookstore and asked the saleswoman, "Where's the
> self-help section?" She said if she told me, it would defeat the
> purpose.
>
>
>
>
>
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