PCB modules sketch

 This are my standard design for pcb making by hand.

In early days i made the pcb with a very crude way, painting the pcb copper side with oil paint. they dry it and then etch it , wash it then put holes. And polish it. Then populating it. 

It enhanced my RF circuits functions due to copper plains giving a good ground. Earlier i used to make circuits on general purpose 20x30 veroboards. They were good but due to the holes it very not useful in high frequency use. But, there are some uses which it is better to use vero-boards. 

In the plain copper PCB board the substrate are two types. Use epoxy-glass based one, Those are strong mechanically and electrically.

Here are my standard sketch

in first page you can see xtal oscillator , xtal filter, poliyakov diode detectors, RF amp stage with xtals used as IF or TRF . so this is a complete receiver.

 

In second page a simple RF or AF amplifier, common emitter format. that is also a standard building block.

one day i will build this into one and that will be the end of R&D in poliakov receiver. That will be available to all.