NJ7P SQL Tube Database Query

A horizontal ribbon.

Note: Please do not link down into my pages. I change this directory structure often and your links will not work correctly.

A horizontal ribbon.

12DV8
Twin Diode - Power Tetrode

EIA Base & Outline

EIA Base: 9HREIA Bulb: 6-3

Substitute Data

Substitutes ................................... 12DL8
Source ........................................ ARRL HB - 1964

Application

Source ........................................ ARRL HB - 1964
Miniature type used a detector, AVC rectifier and space-charge grid tetrode audio power amplifier driver. This tube is designed to operate where heater and plate voltage ar supplied directly from a 12 volt battery. Requires miniature 7-contact socket.

Mechanical Data

Source ........................................ ARRL HB - 1964
EIA Outline ................................... 6-3
EIA Base ...................................... 9HR

Electrical Data

Source ........................................ ARRL HB - 1964
Heater Voltage ................................ 10-16 V
Heater Current ................................ 0.375 A

Direct Interelectrode Capacitances (approx)

Tetrode
Source ........................................ ARRL HB - 1964
Input ......................................... 9 pf
Output ........................................ 1 pf
Grid to Plate ................................. 12 pf

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ ARRL HB - 1964
Plate Voltage ................................. 12.6 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 18 Ω
Amplification Factor .......................... 7.6
Plate Current ................................. 6.8 mA
Load Resistance ............................... 1250 Ω
Power Output (approx) ......................... 0.005 W

A horizontal ribbon.

If you are uncertain about the EIA designator for a particular tube please use the "Index" button to list all the tubes in the database. You can click on the designator for the closest tube.

Please enter the tube number:

This database contains data on thousands of tubes. Every effort has been made to insure the accuracy of this reference, however, I assume no liability for the results of using information contained herein.

Other Tube Search Engines:
Frank's Electron Tube Pages

Complete Tube Manuals:
Tube Manual Index from NJ7P

A horizontal ribbon.

(c) 1994-2021 by William A. Beech, NJ7P

Mon, 28 Nov 2022 02:05:05 -0700