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.

12BR3
Half-Wave Vacuum Rectifier

EIA Base & Outline

EIA Base: 9CB

Substitute Data

Substitutes ................................... 12AF3 12BY3
Source ........................................ RCA RC-29 - 1975

Application

Source ........................................ RCA RC-29 - 1975
Miniature type used as a damper tube in horizontal-deflection circuits of television receivers. Requires miniature 9-contact socket. Socket terminals 1, 2, 3, 6, 7, and 8 should not be used as tie points.

Source ........................................ RCA RC-29 - 1975
It is especially important that this tube, like other power handling tubes, be adequately ventilated.

Mechanical Data

Source ........................................ RCA RC-29 - 1975
Bulb .......................................... T-6 1/2
Base Type ..................................... Miniature Button 9-Pin
Maximum Overall Height ........................ 3.500 In.
Maximum Seated Height ......................... 3.250 In.
Maximum Diameter .............................. 0.875 In.
EIA Base ...................................... 9CB

Electrical Data

Source ........................................ RCA RC-29 - 1975
Heater Voltage ................................ 12.6 V
Heater Current ................................ 0.6 A

Source ........................................ RCA RC-29 - 1975
For other characteristics and typical operation, see 6AF3

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

Sat, 25 Jun 2022 17:03:22 -0700