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7189-A Pinout
basing pinout
Note: Pin 8 is an internal connection

 

7189-A Substitutes
Different rating or performance 6BQ5, 6P15*, 7189, 7320, CV10321, CV2975, CV8069, E84L, EL84, EL84S, N709
Different pinout 6GK6
Different filament voltage 10BQ5, 10GK6, 16GK6, 29GK6

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.

 

7189-A Ratings
Vh Ih VaMax Vg2Max PaMax Pg2Max
6.3 0.76 440 400 13.2 2.2

 

7189-A Application Data
Class Va Vg2 Vg1 Ia Ig2 Ra S Rk Zout Pout THD
A S/E 250 250 -7.3 48.0 5.5 40,000 11.3
AB1 400 300 -15.0 15.0 1.6 8,000 24.0
AB 250 250 62.0 7.0 130 8,000 11.0
B 300 300 -14.7 15.0 1.6 8,000 17.0
B 250 250 -11.6 20.0 2.2 8,000 11.0
AB1 P/P 300 300 72-92 8-22 130 shared 8,000 17 10
AB1 P/P 300 300 -14.7 15-92 1.6-22 8,000 17 10
AB1 P/P (triode) 250 40-43.4 270 10,000 3.4 2.5

 

7189-A Data sheet links
Dave Cigna''s Pages (DuncanAmps mirror) 7189A: html
Peter Millett 16GK6: Acrobat PDF 24K
Frank Philipse 7189A: 135/7/7189A.pdf
TubeZone 7189A: pdf

 

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