Tube Amps / Music Electronics
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Vintage threads from the first ten years
11/27/2005 4:11 AM
Is there a tube contains a EF86 and a low MU (like a 12AU7)triode, for a CF, in the same tube? For V1 in a preamp. It seems to me that there is but can't recall...Thanks
The 7199 tube ...
11/27/2005 10:31 AM