Apache TX-1 restoration

[Patrick]

Problem with modulation solved, it was after all a defective clamp tube V4 
(6AQ5), the one that is inside the cage with the 6146's and very duifucult 
to remove. TX-1 now working to perfection, at least with a dummy load. I 
will still like to know about the conversion that this unit has, at least a 
wiring diagram for it. Thanks in advance.......... Pat
----- Original Message ----- 
From: "Patrick" <brookbank at TRIAD.RR.COM>
To: <HEATH at LISTS.TEMPE.GOV>
Sent: Sunday, May 24, 2009 2:04 PM
Subject: [HEATH-TEMPE] Apache TX-1 restoration


Have finished with the knob shinning and the RF portion, now there is a 
problem with the Audio, it does not have any, all tubes are OK both on 
tester and swapping with known good ones. The problem seem to be on a large 
modification that was done by the previous owner (now deseased) that consist 
of at least adding a regulator tube 5651, the tube does glow when power is 
applied to the TX-1. Is there anyone familiar with this mod or have a wiring 
diagram for it??? Any hel would be greatly appreciated......... Pat PS. with 
dummy load and a full 100Watts output on am mode, touching the mike center 
cable does not produce any hum...........

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