Hi Andy, I will do that tomorrow but I am embarrassed to say when it comes to using the ammeter portion of the meter for some reason I always have trouble. I use an old Fluke 75 DVM (pic attached) and I assume red lead to the 300ma socket, black lead in common socket and set the meter for DA amps, yes? Thanks, turning in now will read tomoorow., Adam
Might just need a simple tune up - check your GATE voltages though, make sure that the mA draw at the TP8 and TP 9 from TP7 is no more than 55mA EACH - done as a Ammeter - for mA (Mili-amp) draw.
Remove that jumper board, set up your ammeter for 200mA...
See graphics and photos for which trimmer does what...you have all you need to do this.
Done by NEGATIVE to TP 9 , POSITIVE to TP 7 then NEGATIVE to TP 8 - POSITIVE to TP 7 those trimmers adjust Driver and Final individually.
Done in SSB Mode, no modulation. Put a GOOD dummy load on it.
An easy formula to remember...
1mA is 1/1000 (one one-thousandth) of an Amp so...
1,000mA is 1 Amp
Seems small, but 55mA is all you need for the Driver and Final as IDLE current.
Please - DO NOT set for voltage - ALWAYS set for mA Draw current...
