[Drake] Transmitting Problem...

[Rob Matherly]

Hi All;

I just fixed the receive portion of my TR-3.  Now I appear to have a 
problem with transmit.

I let it warm up for about half an hour, then decided to try and work 
someone.  After tuning up, I checked power output.  30 watts.  Then 35. 
  Then 40.  I looked at the plate ammeter, and noticed my current had 
gone up from .45 to .6 amps.

I followed the tune-up procedure outlined in the manual, have proper 
idle current, and SWR is 1.5:1.  I transmitted for no longer than five 
or six seconds, and allowed an equal amount of time to cool down.

I let it set for a minute or so, and the current on transmit (this is 
just tune-up - no mike or key, just the function switch on X-CW) went 
back to .45 amps.

What could be the cause of this?

-- 
72/73/oo - Rob, w0jrm - Centerville, IA - http://www.robmatherly.com
FP-QRP #-330; FP-Z #4(1); QRPp-I #19; SKCC #29; ARS #1143