Glass octal type used as combined detector and amplifier in battery-operated receivers. Filament 1.4 volts, 0.05 amperes. Characteristics of triode unit as class A amplifier. Diode is located at negative end of filament. There is no metal tube 1H5, see under 1H5GT
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Bibliografia
Taschenbuch zum Röhren-Codex 1948/49
1H5: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †