Using the Pentode/Triode Tube as the Amplifier/Phase Splitter.
6F12P tube ~Equivalent ECF80 6Ф12П 9pcs Vacuum tube for AMP Triode-Pentode Valve | eBay
ECF 80, Tube ECF80; Röhre ECF 80 ID2409, Triode-Pentode | Radiomuseum.org
E44-Tube electronique ecf80 / 6bl6 triode/pentode 9 pins ( noval ) à 9,90 € (Multifonction)
Philips ECF80 Triode-Pentode Frequency converter
TDSL Tube data [ECF80]
Mullard 6BL8 / ECF80 Vacuum Tube Shield Logo Made in Great Britain - Etsy Singapore
ECF80 - doctsf.com, base documentaire lampes (tubes)
ECF 80, Tube ECF80; Röhre ECF 80 ID2409, Triode-Pentode | Radiomuseum.org
ECF80 / 6BL8 / 6F1P / 6Ф1П Tube changeur de fréquence MARQUES DIVERSES / VARIOUS BRANDS
6F12P tube X10 ~Equivalent ECF80 6Ф12П Vacuum tube for AMP Triode-Pentode Valve | eBay
SM5CBW - Tubedata
ECF80 Data Sheet | MAZDABELVU
ECF80 - doctsf.com, base documentaire lampes (tubes)
ECF80/6BL8 | TRIODE-HEPTODE TUBE à 4 € HT sur Electols
ECF80 triode/pentode Valve | HIFICollective
ECF80 rating | diyAudio
ECF80 Data Sheet | RCA
ECF80 / 6BL8 / 6F1P / 6Ф1П Tube changeur de fréquence MARQUES DIVERSES / VARIOUS BRANDS
ECF80 - doctsf.com, base documentaire lampes (tubes)
ECF80 rating | diyAudio
6F12P tube ~Equivalent ECF80 6Ф12П 9pcs Vacuum tube for AMP Triode-Pentode Valve | eBay
ECF80 @ The Valve Museum
ECF80 Datasheet - Triode - Pentode 1957
ECF80 / 6BL8 / 6F1P / 6Ф1П Tube changeur de fréquence MARQUES DIVERSES / VARIOUS BRANDS
