[ARC5] 1626 VS 1629

Jack Antonio scr287 at att.net
Tue Oct 7 11:21:49 EDT 2014


Once, when backing out mods to an otherwise clean BC-696,
I found that if the 1626 and 1629 are accidentally  swapped, the 1629
will oscillate.  It was late, and I was probably a little too tired to be
working on radios.

I had already backed out all the RF mods, and knew the transmitter was
working, and this was after restoring the filament and control circuits. 
I was
thinking that due to the nature of the 1626 cathode and filament circuit, I
had made a mistake in that area.  But it was just a careless re-install 
of the tubes.

The transmitter was way off frequency, quite unstable, and the power output
was low. As I remember the power out was only a couple watts, and it was
25kc low in frequency.

Jack Antonio WA7DIA/4





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