Hi Dennis; I am having trouble resonating the plate tank on the linear amplifier I just built. When checking for resonance with a grid dip meter using a 5,000 ohm resistor from plate to ground, should the tubes (4-400 X 2) be in the circuit?
Also, the plate coil has 18 turns vertically and 5 turns horizontally for 10 meters. If I couple the GDO to the small coil will it see 80 meters? Thanks, Ed Richards K6UUZ
