TDSL Tube data [CV9858]

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CV9858 Pinout

CV9858 Substitutes

Close or identical	6U8A, ECF82
Different rating or performance	6678, 6U8, CV5065

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.

CV9858 Ratings

Vh V	Ih A	VaMax V	VhkMax V	PaMax W	Pg2Max W	IkMax mA	Notes
6.3	0.45	330	90	2.5		20	Triode section
6.3	0.45	330	90	3.0	0.55	20	Pentode section

CV9858 Application Data

Class	Va V	Vg2 V	Vg1 V	Ia mA	Ig2 mA	Ra Ω	S mA/V	Notes
A	125		-1.0	13.5			7.5	Triode section
A	125	110	-1.0	9.5	3.5	200,000	5.0	Pentode section

CV9858 Data sheet links

Peter Millett	6U8-A: Acrobat PDF 343K 6678: Acrobat PDF 92K
The Valve Museum	6U8: html
oldradio.qrz.ru	ECF82: html page, MAZDA Valves & Picture Tubes Data 6U8: MK buizen handboek
Frank Philipse (Wildcat mirror - Jörg Jan Münter)	6U8A: 6SN7GTB.pdf (333220 bytes), 6U8A.pdf (300594 bytes), 6U8A.pdf (310536 bytes), 6U8A.pdf (631341 bytes) ECF82: ECF82.pdf (140998 bytes) (de), ECF82.pdf (435462 bytes) (cs), ECF82.pdf (795208 bytes) (de) 6678: 6678.pdf (124053 bytes), 6678.pdf (591095 bytes) 6U8: 6U8.pdf (107947 bytes) (fr), 6U8.pdf (124995 bytes), 6U8.pdf (81375 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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