EF86
4
MENTIONS
1
EPISODES
1
PODCASTS
Search complete. 4 mentions across 1 episode found for "EF86".
Sep 9, 2026
Robert MarshallHOST
Features the M7 capsule and probably, let's see, what tube did the UM57 use?
Andrew PetersHOST
EF86, I think you'll find.
Robert MarshallHOST
No.
Robert MarshallHOST
The EC92 vacuum tube.
Robert MarshallHOST
Oh, really?
Andrew PetersHOST
Interesting.
Robert MarshallHOST
But they replaced the older EC92 with a premium EF86 pentode tube.
Andrew PetersHOST
Yeah.