[time-nuts] Heathkit GC 1000 Most Accurate Question

[Scott McGrath]

I've got one as well replaced that pot with 10 turn pot and electrolytic replacement

Content by Scott
Typos by Siri

On Feb 6, 2018, at 9:05 AM, paul swed <paulswedb at gmail.com> wrote:

Exactly they are the small open air pots.
Just one possibility along with the other good suggestions mentioned.
Regards
Paul
WB8TSL

On Tue, Feb 6, 2018 at 7:29 AM, Dave B via time-nuts <time-nuts at febo.com>
wrote:

> 
>> Bill
>> I see the manual is online for the GC1000.
>> The 1KHZ tone decoder may be suspect in that its drifted off frequency.
> Its
>> a little ne-567 chip with a pot.
>> ne 567s were never all that great...
>> Regards
>> Paul
> 
> ------------------------------------------------------------------------
> 
> 567's are not too bad, not "precision", but not bad.
> 
> Small pot's are not great for long term stability either, especially if
> the track/wiper is exposed.
> 
> 73.
> 
> Dave.
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