I did the mod from the schematic and parts that T-T sent on a perfboard - it 
really isn't much, but, before hand,  I pulled the 15 meter filter and put 
in a jumper wire - it worked like a charm w/o the filter - I am not sure 
what the harmonics on that looked like - others can do the hi-tech work :>)
Kris
 ----- Original Message ----- 
From: <w8au@sssnet.com>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Thursday, February 13, 2014 1:39 PM
Subject: Re: [TenTec] Ten Tec Centaur 411 10m Mod Needed
 
At 08:10 AM 2/13/2014, you wrote:
 
I just acquired a Ten Tec Centaur 411 amp from an SK estate.  As it turns
out, it was never updated for 12/10m use.  Ten Tec noted they did not have
the board to enable 10m.  Any suggestions on a possible source or circuit
diagram would be appreciated.
 
 
Doug:
 Had to do this to our club Centaur.  TT no longer has the plug in board 
but
will supply the pi-section filter schematic/parts values for it.  You have 
to
fabricate your own board, which goes in place of the 15 meter output 
filter.
Have fun..
Perry   w8au
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