[AMPS] RJ-iA relay contact-life on CW?

[Rich Measures]

>Rich: I recall reading an article on the W2PV contest station a number of
>years back which mentioned that they had trouble over time with the RJ1A
>vac relays in their Alpha 77 amps doing QSK. 

€  Not surprising.  The vac. relay is driven from a 50v source in the 77. 
.  It takes about double that potential to make the RJ-1A-26 relay switch 
fast enough for modern transceivers.  

> I don't know if the trouble
>was the contacts or the clapper assy. I have always felt that the vacuum
>environment helps the contact life 

€  I believe this to be the case. 

>but probably is not helpful to the
>mechanical clapper life.  In fact it may be a disadvantage. 

 €  I know of no cases of clapper/armature failure. 

-  thanks, Dan
>
>Rich Measures wrote:
>
>> Does anyone on [AMPS] know of a case where a CW person managed to wear
>> out the contacts on a Jennings RJ-1A vacuum-relay?
>> -  thanks.
>>
>> Rich...
>>
>> R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
>>
>> --
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>
>
>



Rich...

R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures  


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