Folks -- I'm getting low output on 10 and 15 Meters. Typical output on the other lower bands is well over 100 Watts.
All tubes test good, and I re-did the Buffer Coil adjustments as per the manual. After tune up on 15 Meters, here's my readings: Driver current is at 6 ma Ig is at 2 ma Ip is 250 ma Output power 50 W After tune up on 10 Meters, my readings are: Driver current is at 6 ma Ig is at 2 ma Ip is 250 ma Output power 65 W As a reference, after tune up on 20 meters, my readings are Driver current is at 6 ma Ig is at 6.5 ma Ip is 250 ma Output power 130 W Just for "fun", on both 15 and 10, I upped the driver current to max, which was 10 and 7 mA respectively. The respecitve Ig's were 10+ and 5 mA, and the output power (both bands) jumped to 80W. So, seems I have a problem with the grid current on 10 and 15 M. I figure I'd start looking at the circuit around the Driver section of the bandswitch. I was wondering, though, is this a known problem with the DX-100B that might be attributed to (perhaps) neutralization? Any and all comments welcome. Thanks & 73 Mark K3MSB
