6H6 Double Diode. A vintage vacuum radio tube by GE General Electric, U.S.A. #20488 | M-Ware
Eico 625 Tube Tester users manual & schematic with tube data, reprint | eBay
Metal vs. Glass Radio Tubes, October 1935 Radio-Craft - RF Cafe
Vacuum Tube - 6H6, Diode, Twin | Antique Electronic Supply
TDSL Tube data [12H6]
Sylvania Technical Manual 1943
6H6GT @ The Valve Museum
2 Us-made 6H6 6H6GT Vacuum Tubes Valves Milspec NOS NIB Lot of - Etsy Norway
SM5CBW - Tubedata
Audio Tube Noise Measurements – Tavish Design
Lampe électronique 6H6 JAN Various manufacturer
6H6 Twin Diode Tube. MFR: RCA, GE, Sylvania, Zenith, Tung-Sol. Has a metal envelope. New old stock. SKU:6H6
6H6 | ABB
Atwater Kent Model 649 All-Wave 9 Metal Tube Superhet. Set Radio Service Data Sheet, November 1935 Radio-Craft - RF Cafe
upgrade_noval_tubes_to_6H6P
6H6 | SYLVANIA | DUO DIODE TUBE At 1.5 € HT on Electols
File:Vintage EICO Tube Tester, Model 625, Metal Cabinet, EICO Electronic Instrument Company, One Vacuum Tube (6H6), Made In USA, Circa 1950 - 1952 (32892390481).jpg - Wikimedia Commons
WF Germany 6H6 Direct Upgrade 6H6P Electronic Tube 6x6p Sound Tank, Radio, Antique Tank
Vacuum Tube - 6H6, Diode, Twin | Amplified Parts
D63, MARCONI, NEW BOXED, 6H6, ARDD3 , FOR AR88, WS19, T1259 – MULLARD MAGIC
List of vacuum tubes - Wikipedia
