Tube Lab #8 12AU7 Rolling
14:22
Tube Lab #13 How to Identify Mullard & Philips Tubes
11:59
Ray Tubes have landed!
26:00
Tube Lab #18 Russian 6N2P
18:58
ECC 83 - 12AX7, trioda napięciowa (#98)
24:10
Tube Lab #119 - 12AX7 Tube Revisited
14:08
(take 2) Genalex gold lion vs Tungsol gold pin vs stock Chinese 12ax7 vacuum tubes (valves).
18:41
" UNDERSTANDING ELECTRONICS: VACUUM TUBES " 1970 EDUCATIONAL FILM DIODES & TRIODES XD72594
11:41