Note: Please do not link down into my pages. I change this directory structure often and your links will not work correctly.
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Preferred Substitutes ......................... 1D7
Source ........................................ RCA RC-15 - 1947
Source ........................................ RCA RC-15 - 1947
Glass octal type used in battery-operated receivers. Tube requires octal socket.
Source ........................................ RCA RC-15 - 1947
Bulb .......................................... ST-12
Base Type ..................................... Octal
EIA Outline ................................... 12-8
EIA Base ...................................... 7Z
Source ........................................ RCA RC-15 - 1947
Filament Voltage .............................. 2.0 DC V
Filament Current .............................. 0.12 A
Pentagrid Converter
Source ........................................ RCA RC-15 - 1947
Plate Voltage ................................. 180 V
Grid No. 2 & 4 Supply Voltage (Screen) ........ 140 V
Grid No. 2 & 4 Dissipation (Screen) ........... 180 W
Grid No. 3 Voltage
Negative Bias Value ........................ 180 V
Converter
Source ........................................ RCA RC-15 - 1947
Plate Voltage ................................. 180 V
Grid No. 1 Voltage (RMS) ...................... 140 V
Grid No. 1 Bias Voltage ....................... 180 V
Conversion Transconductance ................... -3 µ
Plate Current ................................. 50K mA
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.
(c) 1994-2021 by William A. Beech, NJ7P
Mon, 30 Jan 2023 00:15:33 -0700