[Amps] 3-500 / 4-400 cooling (09/10/2005)

[Peter Chadwick]

Rich said:
>As I recall, the E. F. Johnson socket for the 8877 has a center hole 
that passes air to the base.<
I think that particular E.F.Johnson socket was the one developed for the 826, 829 and 832 series, all of which had an exhaust tube that poked through that hole. Like the later 5894 (QQV06/40) series. Anyhow, that socket looks remarkably similar if it wasn't meant for those tubes!
73
Peter W6/G3RZP