[Elecraft] OT: Astron linear PS regulation issues

Fred Jensen k6dgw at foothill.net
Tue Feb 26 18:28:48 EST 2019


Our use of the power supplies was on mountain top repeater and remote 
base sites.  Access was generally time-consuming and sometimes 
impossible at various times of the year.  The Astrons, while they could 
be repaired and made to work ... at least for awhile ... were just too 
unreliable and unpredictable for such service.  We ultimately lucked 
into some Rockwell/Collins rack mounts that had been removed from 
service and were at a government surplus auction.  The were rock solid. 
We had to do a little modification to get the regulated voltage down 
from 18 to 14 but that turned out to be two resistors. They'll probably 
run until Antarctica melts.  Neither side of the outputs [there were 
two] were connected to the frame.  Only downside was that it took two 
strong guys to position them in the rack while a third installed the 
screws. [:-)

If the PS is under or on your desk or table, the reliability issue would 
be a lot less.

73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

On 2/26/2019 3:06 PM, Ron Genovesi wrote:
> Maybe they were bought out by MFJ   ;-)
>
>       Ron Genovesi
>             N3ETA
>



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