TDSL Tube data [27GB5]

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27GB5 Pinout


Note: Pin 9 is an internal connection

27GB5 Substitutes

Close or identical	CV10725, PL500
Different rating or performance	CV10955, PL504
Different filament voltage	EL500, EL504

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.

27GB5 Ratings

Vh	Ih	VaPeak	VaMax	Vg2Max	PaMax	Pg2Max	IkMax
27	0.3	7,700	275	275	17.0	6.0	275

27GB5 Application Data

Class	Va	Vg2	Vg1	Ia	Ig2
Line output	75	200	-10.0	440	37.0

27GB5 Data sheet links

Dave Cigna''s Pages (DuncanAmps mirror)	PL504: html
Duncan''s Amp Pages	PL500: Acrobat PDF (8 pages) PL504: Acrobat PDF (3 pages)
National Valve Museum	PL500: html2 PL504: html
oldradio.qrz.ru	PL500: MAZDA Valves & Picture Tubes Data EL500: html page, MK buizen handboek
Frank Philipse (Wildcat mirror - Jörg Jan Münter)	27GB5: 6GB5.pdf (411522 bytes) PL500: PL500.pdf (32250 bytes), PL500.pdf (484292 bytes) EL504: EL504.pdf (17062 bytes), EL504.pdf (478818 bytes) (fr) PL504: PL504.pdf (275215 bytes), PL504.pdf (36661 bytes) (fr) EL500: EL500.pdf (35312 bytes), EL500.pdf (470327 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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