[AMPS] Clipperton L amplifier

[Mike McCarthy, W1NR]

The amp I had used relays to switch the input coils, thus isolating them
from the input bandswitch.  In fact, I think that this was a retrofit.  If I
recall, the factory stock version had no tuned input.

There was one major design flaw.  The original tank coil tended to arc over.
These were replaced under warranty with a better design.  However, not all
of the owners had this done.  Mine had this mod and never spit, arced or
showed any signs of parasitics.

Another problem with this amp is the lower right hand tube (looking at the
side of the amp toward the top plates) tended to loose it's base seals
often.  Increasing the fan speed by decreasing the value of the dropping
resistor helps alleviate this problem (with increased fan noise).

I am sorry I sold this amp.  It was probably one of the best power to
weight/size amps ever built.  It would always put out 1200-1300 watts with
relative ease in a package the size of an SB-200.

Mike, W1NR

-----Original Message-----
From: owner-amps@contesting.com [mailto:owner-amps@contesting.com]On
Behalf Of measures
Sent: Wednesday, January 17, 2001 12:34 PM
To: Ray LaRue; AMPS
Subject: Re: [AMPS] Clipperton L amplifier



>
>Just picked up a nice Clipperton L amplifier.  It's in first class
condition
>but it has been sitting a while.

The Clipperton is not very nice.  For starters, there is no shield
between the input and output bandswitches.  The switch wafers are about
5/8 of an inch apart.

end

-  Rich..., 805.386.3734, www.vcnet.com/measures.
end


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