Early Television  
Mechanical TV History How it Works Mechanical Sets at the Museum Gallery Database Summary Broadcasting Technical Inforation Restoration Advertising Articles Roger DuPouy's Site Peter Yanczer's Site Gerolf Poetschke's Site Eckhard Etzold's Site
Early Electronic Television History American Sets at the Museum British Sets at the Museum Gallery Database Summary Broadcasting CRTs Accessories Technical Information Restoration Advertising Articles Gerolf Poetschke's Site Eckhard Etzold's Site
Postwar American TV History American Sets at the Museum British/Europen TV History British/Europen Sets at the Museum TV in the Rest of the World Gallery of Unusual Sets Broadcasting CRTs Accessories Technical Information Restoration Advertising Articles Eckhard Etzold's Site
Early Color TV History Sets at the Museum Gallery Database Summary Broadcasting CRTs Accessories Technical Information Restoration Advertising Articles Pete Deksnis's Site Ed Reitan's Color Television History Eckhard Etzold's Site
The Early Television Foundation About the Museum Directions to the Museum Articles about the Museum Support the Museum Join our Email List Our Newsletter - "What's New in Old TVs" Equipment Donations Museum Members and Supporters Members Only Monthly Online Meetings Annual Convention Swapmeets
What's New on the Site Classifieds Parts for Sale Resources North American Radio and TV Museums Search the Site
Contact Us Facebook YouTube Channel

Early Electronic Television

Ekco TA201 Valve List

Single channel TRF. 45.0 mHz video, 41.5 mHz audio. 7 inch CRT (Mazda CRM-71) triode. Magnetic focus and deflection, approx. 50 degrees. Has audio detector but no audio output amplifier or speaker.

Function
Quan.
Type
Notes
    
Vision Chassis
Video RF amplifier 3 SP41 TRF - 42 -45 mHz
Video detector 1 D1  
Video amplifier 1 SP41
Sync separator 2 D1
Sync amplfiier 1 SP42
    
Time Base Chassis
Horizontal (line) oscillator 1 T41 Gas thyratron
Horizontal (line) output 1 AC6PEN
Vertical (frame) oscillator 1 T41 Gas thyratron
Vertical (frame) output 1 PEN45
   
Sound Chassis
Audio RF amplifier 1 VP41 41.5 mHz
Audio RF amplifier 1 SP41 41.5 mHz
Audio detector/amplifier 1 HL41DD
Power Supply Chassis
Rectifier 1 UU4 B+ for sweep circuits
Rectifier 1 UU4 B+ for other circuits
HV (EHT) rectifier 1 U21 3500 VDC

 

 


 
Early Television Museum
5396 Franklin St., Hilliard, OH 43026
(614) 771-0510
info@earlytelevision.org