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1S4 Pinout
basing pinout

 

1S4 Substitutes
Close or identical CV783, DL91, VT210

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.

 

1S4 Ratings
Vh Ih VaMax Vg2Max IkMax
1.4 0.1 90 67.5 40

 

1S4 Application Data

No information available

1S4 Data sheet links
National Valve Museum 1S4: html
oldradio.qrz.ru 1S4: MK buizen handboek
Frank Philipse (Pocnet mirror - Patrik Schindler) 1S4: 1R5.pdf (98113 bytes), 1S4.pdf (167475 bytes), 1S4.pdf (249111 bytes)
Frank Philipse (Wildcat mirror - Jörg Jan Münter) 1S4: 1R5.pdf (98113 bytes), 1S4.pdf (167475 bytes), 1S4.pdf (249111 bytes)

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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