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1665 Pinout
No information available

 
1665 Substitutes
Different rating or performance 1657, 2050, 2051, BA2, CV1798, CV2565, VT109, VT245, WL630A, WT210004, WT246

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.

 
1665 Ratings

No information available
1665 Application Data

No information available
1665 Data sheet links
Peter Millett 2050: Acrobat PDF 188K  2051: Acrobat PDF 106K
The Valve Museum 2050: html
Frank Philipse (Wildcat mirror - Jörg Jan Münter) 2050: 2050.pdf (197733 bytes), 2050.pdf (228781 bytes), 2050.pdf (813252 bytes)  2051: 2051.pdf (110383 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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