Designed to function as a combined intermediate frequency amplifier, AVC rectifier and detector. Pentode may be used in audio amplifier services. MFR: GE, Cunningham SKU: 7R7 New old stock * No longer available for export.
Characterized by high transconductance and low grid to plate capacitance which makes it useful in in high gain narrow band amplifier service. MFR: Sylvania SKU: 7W7 New old stock * No longer available for export.