TDSL Tube data [CV1977]

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CV1977 Pinout


Note: pins 3 and 4 are internal connections

CV1977 Substitutes

Close or identical

UL41

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.

CV1977 Ratings

Vh V	Ih A
45	0.1

CV1977 Application Data

Class	Va V	Vg2 V	Vg1 V	Ia mA	Ig2 mA	Ra Ω	S mA/V	Rk Ω	Zout Ω	Pout W	THD %
A S/E	200	200	-14.2	45	8.5	24,000	8.2	250	4,300	4.2	10

CV1977 Data sheet links

The Valve Museum	UL41: html
oldradio.qrz.ru	UL41: MAZDA Valves & Picture Tubes Data, MK buizen handboek
Frank Philipse (Wildcat mirror - Jörg Jan Münter)	UL41: UF41.pdf (53222 bytes), UL41.pdf (115697 bytes) (fr), UL41.pdf (415766 bytes), UL41.pdf (590083 bytes), UL41.pdf (99585 bytes) (fr)

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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