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1S5 Pinout
basing pinout

 

1S5 Substitutes
Close or identical CV784, DAF91, VT172

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.

 

1S5 Ratings
Vh
V
Ih
A
Cgk
pF
Cak
pF
Cga
pF
1.4 0.05 2.2 2.4 0.2

 

1S5 Application Data
Class Va
V
Vg2
V
Ia
mA
Ig2
mA
Ra
Ω
S
mA/V
Pentode 67.5 67.5 1.6 0.4 600,000 0.625

 

1S5 Data sheet links
The Valve Museum 1S5: html  DAF91: html2
oldradio.qrz.ru 1S5: MK buizen handboek  DAF91: MAZDA Valves & Picture Tubes Data
Frank Philipse (Wildcat mirror - Jörg Jan Münter) 1S5: 1S5.pdf (226561 bytes), 1S5.pdf (326903 bytes) (fr), 1S5.pdf (411995 bytes), 1S5.pdf (92782 bytes)  DAF91: DAF91.pdf (152322 bytes), DAF91.pdf (257831 bytes), DAF91.pdf (282970 bytes), DAF91.pdf (459590 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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