(Hybrid) color TV - Admiral Chassis K10 - Vintage TV - 1974. Spare component availability will be rare. Just compare this with modern TV circuits, and feel how much the field of electronics have developed. There was no integrated circuit (ICs) at that time.
The circuit consists of both tubes and transistors (Hybrid type). Tubes are used at its horizontal output and video output stage circuit. Most of these tubes are not available now. Moreover the circuit boards are dangerous to handle, due to very high voltages present on them, while the set works. The picture tube is a Shadow Mask type, need very high voltage, in the range between 27 KV to 30KV, and have more than 33 alignment points.
More to say, these sets are very costlier at that time, only very rich ones can afford it. Actually, luxurious piece at that time too.
This was the time, that I entered into this field of electronics as a professional service technician. I'm 71 now, and still continues.
Layout – PWB
Schematic - Full
