Similiar to the ECH81. The triode heptode was designed for the role of frequency changer (mixer) in superhet receivers for AM reception. New Old Stock * No longer available for export MFR: Amperex * Made in Austria SKU: ECH83-BugleBoy-Amp
ECH83 Amperex Bugle Boy Triode-Heptode Frequency Converter (NOS)
Similiar to the ECH81. The triode heptode was designed for the role of frequency changer (mixer) in superhet receivers for AM reception. New Old Stock * No longer available for export MFR: Amperex * Made in Austria