Charge pump

Built a new charge pump circuit from my junk box today. I am doing as my wife suggested and sharing it with those who could potentially appreciate it. It has a TTL output that is HIGH when 10kHz present, LOW when not (for resetting TTL based driver boards that have an active low reset). I also put a relay on it to tie into my safety circuit on the Shizuoka AN-S I am building up.

Yes, that is precisely exactly what I did. It is a variation on a technique called "Manhattan construction" that a lot of ham radio guys use. I use a bandsaw to cut thin strips and then snip them to a size with diagonal cutters to make islands. I then superglue them to a base piece of PCB. For surface mount parts, it works pretty well. The SOT-23's can be a little frustrating, but the strips can be brought to a sharp point to make them easier. It is supposed to be good for very high frequency (VHF) work because of the generous ground plane it affords. I have used various through-hole (dot or vectorboard) techniques too -- It just depends on what kind of parts I have laying around and how small I want it to be. I am looking for a source in the U.S. of the verowire pen. It looks like a great tool! It is kind of fun to make something that is so tiny.