[time-nuts] Defective Z3801 and strange PS board

paul swed paulswedb at gmail.com
Sat Jul 9 15:15:51 UTC 2011


Actually that is a wide range switcher. But useless given we tend to drive
these with a reg 48 V supply.
Regards
Paul

On Sat, Jul 9, 2011 at 10:49 AM, Marco IK1ODO <ik1odo at spin-it.com> wrote:

> Hello Paul,
>
> thanks for info. Another list member gave me two good links: KO4BB has the
> schematic of PS board (!) in http://www.ko4bb.com/cgi-bin/**
> manuals.pl?dir=05)_GPS_Timing/**Z3801/Z3801A_Power_Supply<http://www.ko4bb.com/cgi-bin/manuals.pl?dir=05)_GPS_Timing/Z3801/Z3801A_Power_Supply>and there are some more info in
> http://www.realhamradio.com/**GPS_Frequency_Standard.htm<http://www.realhamradio.com/GPS_Frequency_Standard.htm>
>
> All this confirms my analysis, and since it works well without the first
> converter I will leave it alone, as you say :-) - if you look at the first
> converter schematic, it is really quite complex; and if you power the Z3801
> from 48V it has nothing to do.
>
> Thanks to all for the good info, and thanks to Didier for hosting all the
> good things.
>
> Vy 73 - Marco IK1ODO / AI4YF
>
>
>
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