[time-nuts] Re: Internal power supply for Z3801A

[Lon Cottingham]

Ed,

   Thanks for the reply.  Great idea, but the old board is missing.  I
am building this
unit up from three separate parts units.  I have all original parts
and cables, except
for the power supply.  The chassis already has an analog power supply
built in with
3 wire line cord to power the original 50 volt switcher.  It also has
one of Dave Robinson
G4FRE's great digital clocks built in.  It is going to be very nice
semi-original Z3801A
with a clock that can be seen from across the room without having to
have a computer
attached.

73 de Lon, K5JV
281-795-1335

On Thu, May 5, 2022 at 11:56 PM ed breya <eb at telight.com> wrote:
>
> Do you happen to know what's wrong with the PS? If you can figure this
> out, you can probably fix it. AFAIK the DC-DC converters are still
> commodity parts, under a number of brands, so the easiest is if one of
> those crapped out. If the problem is in the "other" stuff, you'd need
> some reverse engineering and lots of patience. Also remember, there are
> some tiny pigtail fuses on the board, so check those first.
>
> Ed
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