I'm using dozens of potted relays in unheated positions (-35.6C was the
coldest so far this year) and they work very well....have had problems
with open frame types, so switched to these potted types.
They are P&B RKS-5DW-12 (16a 250vac)
and Aromat JS1E-12 (10a 125v)
All have been switching lots of RF for 2 years with no failures, warm or
cold.
73 Don
VE6JY is Don Moman email: ve6jy@freenet.edmonton.ab.ca
Box 127 Lamont, Alberta
T0B 2R0 (403) 895-2925
On Mon, 13 Jan 1997 CQK8DO@aol.com wrote:
> The parasitic array here is new this winter... I am using PB 12vdc DPDT, 30
> amp, potted relays (bad decision) to switch each vertical to/from the
> coax/loading-coil... my thought was that potted relays would reduce contact
> oxidation over the summer which has been a minor problem with the open frame,
> 110vac relays I have used for years... also, I have always been worried about
> someone getting into a relay box while the power was on..
> Well, Ol Murph the Surf rides high here... As soon as the temp gets into the
> single digits (which is often in michigan winter) the relays become
> unreliable... they may switch, or they may not... so the moral is... never
> use relays that are potted, cause you can't see/fix whatever is going on....
>
> Denny cqk8do@aol.com
>
>
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