Museum Hours:

Saturday 10-6

Sunday 12-5

Early Electronic Television

Murphy A58V Technical Information

Single channel superhetrodyne, 9 inch (CRM-91) triode CRT. Magnetic focus and deflection, approx. 50 degrees.

Radio: long wave (150-316 kHz), medium wave (545-1500 kHz), and short wave (6-18 mHz).

 

Function
Quan.
Type
Notes
       
Television Chassis    
RF amplifier
1
SP41
Oscillator/mixer (frequency changer)
1
ACTH1
Video IF amplifier
3
SP41
2-4.25 mHz
Video detector
1
D42
Video amplifier   
1
SP41
Sync separator
1
DD41
Horizontal (line) oscillator
1
T41
Horizontal (line) output
1
AC6PEN
Vertical (frame) oscillator
1
T41
Vertical (frame) output
1
AC5PEN
Audio IF amplifier 1
VP41
750 kHz
Audio detector/amp 1
HL41DD
Audio output 1 AC5PEN
       
Power Pack Chassis      
Rectifier (HT)
2
UU4
HV (EHT) rectifier 1 U21 4700 VDC
       
Radio Chassis      
Oscillator/mixer (frequency changer) 1 AC/TH1  
IF Amplifier 1 AC/VP2  
Detector/amp 1 HL41DD  
Audio output 1 AC5PEN  
Rectifier 1 UU4