6H6 Double Diode. A vintage vacuum radio tube by GE General Electric, U.S.A. #20488 | Boutique en ligne plentyShop LTS
![2pcs 6h6 The Soviet Union 6h6n Vacuum Tube Hifi Audio Tube Replace 12bh7 6n6 - Operational Amplifier Chips - AliExpress 2pcs 6h6 The Soviet Union 6h6n Vacuum Tube Hifi Audio Tube Replace 12bh7 6n6 - Operational Amplifier Chips - AliExpress](https://ae01.alicdn.com/kf/Hfed65a7f5c0747758993b3870e77e1a0U/2PCS-6H6-The-Soviet-union-6H6n-Vacuum-Tube-Hifi-Audio-Tube-Replace-12BH7-6N6.jpg_Q90.jpg_.webp)
2pcs 6h6 The Soviet Union 6h6n Vacuum Tube Hifi Audio Tube Replace 12bh7 6n6 - Operational Amplifier Chips - AliExpress
![File:Vintage EICO Tube Tester, Model 625, Metal Cabinet, EICO Electronic Instrument Company, One Vacuum Tube (6H6), Made In USA, Circa 1950 - 1952 (36078986142).jpg - Wikimedia Commons File:Vintage EICO Tube Tester, Model 625, Metal Cabinet, EICO Electronic Instrument Company, One Vacuum Tube (6H6), Made In USA, Circa 1950 - 1952 (36078986142).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/3/33/Vintage_EICO_Tube_Tester%2C_Model_625%2C_Metal_Cabinet%2C_EICO_Electronic_Instrument_Company%2C_One_Vacuum_Tube_%286H6%29%2C_Made_In_USA%2C_Circa_1950_-_1952_%2836078986142%29.jpg)
File:Vintage EICO Tube Tester, Model 625, Metal Cabinet, EICO Electronic Instrument Company, One Vacuum Tube (6H6), Made In USA, Circa 1950 - 1952 (36078986142).jpg - Wikimedia Commons
![2pcs 6h6 The Soviet Union 6h6n Vacuum Tube Hifi Audio Tube Replace 12bh7 6n6 - Operational Amplifier Chips - AliExpress 2pcs 6h6 The Soviet Union 6h6n Vacuum Tube Hifi Audio Tube Replace 12bh7 6n6 - Operational Amplifier Chips - AliExpress](https://ae01.alicdn.com/kf/Ha0d5f9a0db764ad6bdcc8b49fd72c966u/2PCS-6H6-The-Soviet-union-6H6n-Vacuum-Tube-Hifi-Audio-Tube-Replace-12BH7-6N6.jpg)
2pcs 6h6 The Soviet Union 6h6n Vacuum Tube Hifi Audio Tube Replace 12bh7 6n6 - Operational Amplifier Chips - AliExpress
![File:Vintage EICO Tube Tester, Model 625, Metal Cabinet, EICO Electronic Instrument Company, One Vacuum Tube (6H6), Made In USA, Circa 1950 - 1952 (32173593334).jpg - Wikimedia Commons File:Vintage EICO Tube Tester, Model 625, Metal Cabinet, EICO Electronic Instrument Company, One Vacuum Tube (6H6), Made In USA, Circa 1950 - 1952 (32173593334).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/6/64/Vintage_EICO_Tube_Tester%2C_Model_625%2C_Metal_Cabinet%2C_EICO_Electronic_Instrument_Company%2C_One_Vacuum_Tube_%286H6%29%2C_Made_In_USA%2C_Circa_1950_-_1952_%2832173593334%29.jpg)
File:Vintage EICO Tube Tester, Model 625, Metal Cabinet, EICO Electronic Instrument Company, One Vacuum Tube (6H6), Made In USA, Circa 1950 - 1952 (32173593334).jpg - Wikimedia Commons
![6 N 6 P = 6 H 6 n Vacuum tube Double triode 120 V 28 mA Number of pins: 9 Base: Noval Content 1 pc(s) | Conrad.com 6 N 6 P = 6 H 6 n Vacuum tube Double triode 120 V 28 mA Number of pins: 9 Base: Noval Content 1 pc(s) | Conrad.com](https://asset.conrad.com/media10/isa/160267/c1/-/en/157363_BB_00_FB/image.jpg?x=400&y=400)