This receiver was found in a Popular Electronics from the 90's. Its different configuration shows a tuning circuit after the tube that works as an aperiodic amplifier. Observe supply voltages.
To divide by an odd number‘ means not only the need for flip-flops, but some additional logic too. The...
We find this circuit in 1975 documentation. The circuit can be used with other operational...
Found in an 80's documentation this circuit uses an integrated from the uncommon era today. Other...