ECH 81 = 6 AJ 8 = 6I1P Vacuum tube Triode heptode 100 V, 160 V 13.5 mA, 11 mA Number of pins (num): 9 Base: Noval Cont | Conrad.com
NOS TELEFUNKEN ECH83 6DS8 ECH81 6AJ8 6U1 MATCHED PAIR TUBES 2 TUBES PER BID | eBay
FOR SALE - ECH81 (Matched Pair 2) - MV Audio Labs
ECH81 CV2128 MULLARD NOS VALVE TUBE | eBay
Brand new Antique Britain Net screen ECH81 Vacuum tube amplifier Low noise Can replace 6AJ8 6U1 Audio amplifier accessories - AliExpress
Radio Valve / Vacuum Tube ECH81 WF: Amazon.co.uk: Electronics & Photo
Vacuum Tube teardown - the ECH81 signal mixer tube - YouTube
TELEFUNKEN ECH81 6AJ8 VACUUM TUBE WITHOUT BOX HICKOK TV-7D/U TEST
Valvo ECC85 Vacuum Tube | Valve
ECH83 versus ECH81 | Radiomuseum
Ech81 and ech80 | diyAudio
ECH81 | MULLARD | TRIODE-HEPTODE RADIO TUBE At 7.25 € HT on Electols
Tubes-Store.com → Other tubes → ECH81 / 6AJ8 / 6I1P TESLA tube
ECH81 / 6AJ8 / CV2128 / 6U1 - Vint'Elec - Vintage electronic tubes
ECH83/ECH81 AM Tube Receiver, Csöves vevő, prijemnik sa elektronskim cevom - YouTube
10 PCS ECH81 (~/6I1P/X719/6C12) LIGHTLY USED TESLA TRIODE HEPTODE VACUUM TUBE | eBay
AM modulator and low power transmitter on vacuum tube :: Tube DIY Kit
ECH81 HALTRON TRIODE-HEPTODE VACUUM TUBE = 6AJ8 6I1P X719 6C12 CV2128 6U1 | eBay
Vacuum Tube teardown - the ECH81 signal mixer tube - YouTube
ECH81 PHILIPS NOS BOXED VALVE TUBE | eBay
Electron tube 6I1P-EV (6И1П-EB) = ECH81 = 6AJ8 - RETROSTORE.EU
ECH81 @ The Valve Museum
File:Philips ECH81 MiniWatt vacuum tube pic1.JPG - Wikimedia Commons
ECH81 (6AJ8) NOS Triode + Heptode
