One Valve Electronic CV378,
same as GZ37,53KU
similar to U52, 5U4G,
TV-7D/U tested with 5U4G settings, at
60, 60,
60, 60,
61, 61,
62, 62,
where the minimum good is 40.
This listing is for one tube only, although the pictures show a quad.
Valve Electronic CV378 GZ37 U52 5U4G rectifier tubes tested NOS, one tube only
HK$600.00Price