TDSL Tube data [6678]

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6678 Pinout

6678 Substitutes

Different rating or performance

6U8, 6U8A, CV5065, CV9858, ECF82

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.

6678 Ratings

Vh V	Ih A	VaMax V	Vg2Max V	PaMax W	Pg2Max W	Notes
6.3	0.45	330	330	3.0	0.55	Pentode section
6.3	0.45	330	330	3.0		Triode section

6678 Application Data

Class	Va V	Vg2 V	Ia mA	Ig2 mA	Ra Ω	S mA/V	Rk Ω	Notes
A	250	110	10.0	3.5	400,000	5.2	68	Pentode section
A	150		18.0		5,000	8.5	56	Triode section

6678 Data sheet links

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

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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