Frequency Drift: HW-101

[Joe]

One KC in 1 hour ! Geezz are you sure you are reading the dial correctly not
10 KC's?

1 Kc in 1 hour from a cold start is big lottery hit.
Do not tinker with that VFO,  related screws or dial lamps.

If its 10 KC's try some (C946-947) 56 Pf dogbone NPO's and a negative 750
coefficient on (C951) from Surplus Sales of Nebraska.
Rebuild the LMO exactly like in the manual, tighten 4 mounting bolts in a X
cross pattern to limit stress points.

See service bulletins on the HW-101 here:
http://members.accessus.net/~dwentz/kb9jja/heathkit/
Good Luck

-----Original Message-----
From: Mike Hardie <hardiem at INTERGATE.BC.CA>
To: HEATH at LISTSERV.TEMPE.GOV <HEATH at LISTSERV.TEMPE.GOV>
Date: Saturday, September 25, 1999 12:48 PM
Subject: Frequency Drift: HW-101


>My HW-101 drifts about a Kc in the first hour from a cold start.  Can
>anyone tell me if that's normal and can anyone suggest how to reduce the
>drift? (C946 or C951 replacement or substitution?)
>
>Mike at: hardiem at intergate.bc.ca
>
>Sponsored by the City of Tempe
>
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