[RodB]

Hi, in this case I would be certain that pin 7, which is B-, of the 14A7 is not "hot". If it is then reverse the power plug. This is a hot chassis radio and when you attach the negative side of the generator to B- you don't want sparks. Instead of using the 100pf cap run the generator output hot lead to a loop of wire of several turns about 6 inches dia. Put the loop close to the loop antenna of the radio. Increase or decrease the distance to change the signal strength to the radio.