KEN-O-TAP Universal Modulation Transformers 

Model Number

 Audio Power
(Watts)

Dimensions

 Connection
Information

Mounting 
(LxW)
 Overall
(LxWxH)
 T-493   40  3-3/8 x 2-7/16 4-1/2 x 3 x 3-7/8   Go
 T-494   75  4-5/16 3-3/16  5 x 3-7/8 x 5  Go
T-442 600 Go
T-495  125 5-1/2 4-5/16  6-5/16 x 5-3/16 x 6-3/8   Go
T-496   300 5-3/4 4-13/16    6-9/16 x 5-11/16 x 7-1/8  Go

 

Specific Purpose Modulation Transformers
 Model Number  Description
T-451   Class B 6N7, 53, 6A6, RK34, to 5k or 3k Ohms. Max Sec. DC 100mA.
 T-452  Class B 19, to 5k or 3k Ohms. Max Sec. DC 50mA.
 T-453   Class AB 2A3's, 45's or Class A 6L6's to 5k or 3k Ohms. Max Sec. DC 130mA.
T-454  Class B 46's or 59's, 6F6 (triode or pentode), 2A5's 42's, etc. to 4,6, or 8k Ohms. Max Sec. DC 140, 100, or 75mA. Primary 6 or 10k Ohms p-to-p.
 T-455  Class B 210's to 5,7, or 9k Ohms. Max Sec. DC 180, 150, or 130mA.
 T-456  P.P. Parallel 45's or 2A3's Class AB to 5, 7, or 9k Ohms. Max Sec. DC 150, 100, or 75mA.
T-457   P.P. Parallel 46's, 59's, 6F6's (triode or pentode), 2A5's, 42's, etc. to 3, 5, or 7k Ohms. Max Sec. DC 220, 160, or 120mA. Primary 3 or 5k Ohms.
T-458   P.P. 801's to 5, 7, or 9 k Ohms. Max Sec. DC 150, 135, or 110mA.
 T-459  P.P. 6L6's Class AB2 to 2.5,5, or 7k Ohms. Max Sec. DC 300, 250, or 200mA.
 T-460  P.P. 800's to 6, 8, or 10k Ohms. Max Sec. DC 200, 175, or 150mA.
 T-461  P.P. 35T's RK31's, RK18's to 5, 7, or 10k Ohms. Max Sec. DC 240, 200, or 175mA.
 T-462  P.P. RK39's to 4, 6, or 8k Ohms. Max Sec. DC 300, 250, or 200mA.
 T-465  P.P. 838's, T-55's, 203A's to 4, 6, or 8k Ohms. Max Sec. DC 400, 320, or 270mA.
 T-470  P.P. H.D. 203A's, 150T's to 4, 6, or 8k Ohms. Max Sec. DC 500, 400, or 350mA.
 T-490   Single 2A5, 42 or 6F6 grid modulation transformer to grid modulate 203A's, 211's, etc.
 T-491  Single 45 grid modulation transformer to grid modulate 203A's, 211's, etc.
 T-492  Grid or suppressor modulation transformer - PP 45's to 10k load.
 T-497  P.P. 46's or 59's to 13.5k and 500 Ohms for plate and screen modulation of a single RK20 or 804. Max Sec. DC Plate winding 75mA. Screen winding 40 mA.
 T-498  P.P. 801's to 6.6k and 250 Ohms for plate and screen modulation of two RK20's or two 804's. Max Sec. DC Plate winding 150mA. Screen winding 120 mA.
 T-499  P.P. 800's to 13.5k and 2.2k Ohms for plate and screen modulation of a single RK28 or 803. Max Sec. DC Plate winding 150mA. Screen winding 100 mA.

 

Cathode Modulation Transformers 

Model Number

 Max Secondary DC
(mA)

Audio Tubes
 T-471  200  Single 6F6
 T-472  300  PP 6V6s or 2A3s
T-473  450 PP 6L6's (AB1 or AB2)
T-474   500 Universal (120 watts audio) 

 

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23 December 2004