[Amps] RF Parts OEM 3-500ZG's

[Michael Tope]

I just bought a used Ten-Tec Centurion on behalf of a friend. We 
both were under the mis-informed belief that it would be equipped 
with Eimac 3-500ZG's. Instead it has a matched pair of RF Parts 
branded PRC manufactured 3-500ZG's. Anybody know the track 
record of these tubes compared to the Amperex 3-500ZG (made 
in France?) or the ones Eimac used to make?

Thanks,

Mike, W4EF..................................................