[AMPS] Cliperton L mods??

km1h @ juno.com km1h@juno.com
Mon, 20 Oct 1997 09:46:32 EDT

The L was built back in the days of tube rigs so input VSWR was not a
Dentron sold a tuned input kit that included an extra switch wafer. I
haven't seen a spare kit for years.
You can use the universal input from Omega Electronics, 919-266-7373. It
is 12VDC relay switched and it will fit inside the L. An external 6
position switch would probably be the easiest.

There are a number of mods to improve performance on 160, 10, and even
add WARCS (dont try 12M yet....the plate choke is resonant.). The first
step is to get the input tuned.
All said and done the L should run 1000-1300W out on all bands. 

GL  Carl  KM1H

On Sun, 19 Oct 1997 22:08:50 -0500 Steve Narducci <nw9g@netusa1.net>
>With my solid state ten tec, I have a high swr on some bands and lower
>output with the
>amp.  Is there a fix for this?  I have heard not so good things from 
>On 160 meters, I get about 600 watts out max with 100 watts of drive 
>an swr
>of 1.2:1 which is low on this band.  On 80, I get about 1100 watts out 
>an swr of
>2.5:1 and 100 watts of drive.  40 meters is about 900 watts swr 3:1.  
>on 20
>800 watts out swr is 1.2:1.   15 is about the same.  10 meters, forget 
>swr is so
>high I don't get any output from my rig into the amp.  From any of you
>cliperton users,
>what is the typical output from this amp?  This amp has been sitting 
>on a
>shelf for 
>nearly 20 years of non use.  It has the original 572b's that even say
>Dentron on them.
>Are there any other mods that I should look into putting in this amp?
>What is this vhf parasitic suppessor circuit, something I should put 
>Sorry for the inexpericened questions and bandwidth.....Steve
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