Took this photo about 20 years ago of a Motorola Quarter Kilowatt VHF RF Power Amplifier I modified, took out the small conduction cool tubes and replaced with two 3CX1500A7 tubes, that baby would put out so much power I was hearing echo's off the moon using it, really:
Melles Griot head lasing a little bit. Unfortunately the Vanadate on both units is cracked, I'll need to find a replacement. Both KTPs + Pumps are still good though, perhaps not quite up to factory spec, but still useful. Will probably use them as parts or find a way to stick a larger piece of coated Vanadate in there.