For sale: Three 8560 ceramic tetrodes. Two are Motorola and one is Amperex. I think they are all NOS, but the Amperex has some tarnishing and may be used. These are electrically equivalent (or at least very close) to 4CX250B's. However they have no cooling fins on the plate structure since they are designed to be cooled by heat sinking rather than air flow. The Eimac literature that I saw said that their plate dissipation rating is limited only by the effectiveness of the heat sink. Kinda cool lookin' tubes. Maybe someone out there can put 'em to use. $50.00 for all three shipping included.
Ron W8ACR
skipperfam@gondtc.com
