This document provides mechanical and electrical data for the Sylvania Type 12DV7 electronic tube. It specifies heater characteristics, direct interelectrode capacitances, maximum ratings, and typical operation parameters for Class A amplifier applications.
The device is designed specifically for use in automobile radios operated from a nominal 6 volt battery, where the heater and plate voltages are supplied directly from the automotive storage battery.
| Bulb Base Type | Miniature Button 9-Pin E9-1 |
|---|---|
| Cathode Coating | Coated Unipotential |
| Heater Voltage | 12.6 Volts |
| Heater Current | 150 Ma |
| Grid to Plate Capacitance | 1.6 upf |
| Plate Voltage (Max) | 16 Volts |
| Cathode Current (Max) | 20 Ma |
| Grid Circuit Resistance | 10 Megohms |
| Plate Current (Typical) | 400 wa |
| Transconductance | 750 umhos |
| Plate Resistance | 19,000 Ohms |
The Sylvania Type 12D V7 is a miniature double diode, medium mu triode intended for use as a Second detector audio amplifier.
It is designed for operation where the heater and plate voltages are supplied directly from a 12 volt automotive storage battery.
The design allows the heater to operate satisfactorily over the range 10.0 volts to 15.9 volts.