7 Vintage Tung-Sol 50HC6 7 pin Miniature Beam Power Amplifier Tube - BangyBang Tubes. Brand Tung-Sol Model 50HC6 Type Beam Power Tube Use Amp. Heater: 25EH5 / 6EH5 Condition New in Box (NOS) Tubes per listing 7 50XXX. Sorry, our items are NOT available for pick-up. No additional information at this time.Matched Pair Sylvania/GE 5AU4/5V3 Full Wave Rectifier Guitar Amp. Matched Pair General Electric 5AU4/5V3 Full Wave Rectifier Guitar Amp. Matched Pair RCA/Philco 5AU4/5V3 Full Wave Rectifier Guitar Amp. This item is in the category "Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Parts & Accessories\Vintage Tubes & Tube Sockets". The seller is "bangybangtubes" and is located in this country: US. This item can be shipped worldwide.