Phonographic preamplifier (CB8249E)

This circuit was found in a Electronics World of 1968. The integrated circuit is the MC1320P from Motorola, uncommon today.

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25 W phase control (CB8334E)
This 25 W phase photo control was found in a 1965 General Electric publication. The circuit uses a...
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The circuit below uses common JFET transistors, which can be the BF245 or MPF102 amplifying video...
VHF and UHF Line Amplifier (CB16835E)
This circuit was found in a 1997 documentation. It works as a booster for VHF and UHF signals...