[Moon-net] [Moon] All I want for Christmas...

[w2drz]

Hugh,

Big thing I see in your note is a BIG RF spike on TX??????

Is the amp turn on in a sequence manner??
a 4 stage is to be 3rd stage of amp on then the driver system is number
4 turn on, at that power would suggest a slow sequence, about 100 mill a
second between 4 stages.......

If NOT you will need a bunch of new relays????????????

tom



Hugh VA3TO wrote:
> 
> ...is a new RF relay.
> 
> On Friday evening I rushed home from work to participate in the DUBUS 2m
> CW event with hopes of working some new initials using my recently
> christened h/b 8877 amplifier.
> Something didn't seem right with the amp tuning and I quickly discovered
> that the SWR was terrible. A continuity check on the TX feedline in the
> shack showed a dead short. Today I climbed up the tower with my
> multimeter and quickly discovered that the relay was the culprit. Some
> slightly blurred photos below (too many Molsons' last night hihi !).
> 
> http://home.cogeco.ca/~va3to/Relay/Relay1.jpg
> http://home.cogeco.ca/~va3to/Relay/Relay2.jpg
> 
> I thought the Dow Key transfer relay was good for 1700W at 144MHz
> according to the datasheet but evidently not.
> 
> So I'm looking for a replacement...doesn't have to be a transfer type.
> A SPDT would suffice but it must be capable of handing at least 1500W
> with a 12V or 28V coil.
> I can pay using Paypal. Anyone ?
> 
> Merry Christmas & Happy New Year to all !
> Hugh VA3TO
> 
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