Hello everyone....new member here so be gentle. Does anyone have a schematics for the D&A PDX 400 ? I'm trying to replace the components in the keying circuit.... amplifier stopped keying up...... I've already replaced the transistor but there are 2 glass diodes that have no markings on them that I can't figure out what they are ( zener? geranium?or switching) one of them tested shorted.
Replacing the transistor didn't fix the problem. If anyone has a copy of the schematics I'll be glad to pay for it.
Thanks
Randy
Replacing the transistor didn't fix the problem. If anyone has a copy of the schematics I'll be glad to pay for it.
Thanks
Randy