Motorola 19CK1, 19CK2 and 19CT1 Tube List

Early Color Television

Motorola 19CK1, 19CK2 and 19CT1 Tube List

12 channel (54-216 mHz) superhetrodyne. 19 inch 3 gun CRT (19VP22). Electrostatic focus, magnetic convergence and deflection, approx. 50 degrees. Later replaced with 21AXP22.

Function	Quan.	Type	Notes

RF amplifier	1	6BZ7
Oscillator/mixer	1	6U8
Video IF amplifier	3	6CB6	45.75 mHz video IF
Video detector	1	1N60
1st/2nd video amplifier	1	6AN8
Video output	1	12BY7
Chroma bandpass amplifier	1	12BY7
Chroma cathode follower	1/2	12BH7
Burst amplifier	1/2	6AN8
Chroma sync phase detector	1	6AL5
Chroma reference oscillator control	1/2	12AT7
Chroma reference oscillator	1/2	12AT7
Quadrature amplifier	1/2	12BH7
B-Y demodulator	1	6AL5
R-Y demodulator	1	6AL5
G-Y amplifier	1/2	6AN8
B-Y amplifier	1/2	12BH7
R-Y amplifier	1/2	12BH7
1st/2nd audio IF amplifier	1	6AN8	4.5 mHz
Ratio detector	1	6AL5
Audio amplifier/AGC clamper	1	6AV6
Audio output	1	6V6
AGC keying/cathode follower	1	12AU7
Sync separator	1	6CS6
Sync phase inverter	1/2	6SN7
Horizontal (line) AFC	1/2	6SN7
Horizontal oscillator	1	6SN7
Horizontal output	1	6CD6
HV (EHT) rectifier	1	3A2
HV (EHT) coupler	1	3A2
HV (EHT) doubler	1	3A3	25 kv
Damper	1	6AU4
HV (EHT) regulator	1	6505	Gas discharge tube
Vertical (frame) oscillator/output	1	6BL7
Rectifier (HT)	3		Selenium rectifiers