3 Vintage Tung-Sol 50B5/A4388 Miniature Tetrode Audio Output Valve - BangyBang Tubes

$65.00

Brand	Tung-Sol (diff. year box)
Model	50B5
Type	Tetrode
Use	Output stage
Similar/Equiv	Octal Based 50L6
Condition	New in Box (NOS)
Tubes per listing	3

50XXX