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SR56 Pinout
basing pinout
Note: pins 3 and 6 are internal connections

 

SR56 Substitutes
Close or identical 0A2, 11TA31, 150C1, 150C2, 150C4, CV10664, CV1832, CV2903, CV8161, HD51, M8223, QS1207, QS1210, STR15030

Warning: Substitutes are given as a guide only - please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application.

 

SR56 Ratings
Ih
A
0.0

 

SR56 Application Data
Class Va
V
Ia
mA
Notes
Regulator 150 5.0 - 30.0 Strike = 155V, regulation = 2.0V

 

SR56 Data sheet links
The Valve Museum 0A2: html
Frank Philipse (Wildcat mirror - Jörg Jan Münter) 0A2: 0A2.pdf (151743 bytes), 0A2.pdf (162347 bytes), 0A2.pdf (239010 bytes) (fr), 0A2.pdf (35170 bytes), 0A2.pdf (364950 bytes), 0A2.pdf (45775 bytes), 0A2.pdf (46526 bytes), 0A2.pdf (62988 bytes)  150C1: 150C1.pdf (81821 bytes)  150C2: 150C2.pdf (58872 bytes), 150C2.pdf (73866 bytes) (de)  150C4: 150C4.pdf (46295 bytes)  M8223: M8223.pdf (184501 bytes)  SR56: SR56.pdf (92272 bytes)  StR150/30: StR150-30.pdf (1302675 bytes) (de), StR150-30.pdf (134159 bytes) (de)

Bold designators are close or identical, Italic designators are different ratings, different pinouts or different filament voltages. Please see the substitutes at the top of the page for more details

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