To many people I'm best known for the books I've written on the application of electronics to model railways. At last, by popular request, here's a page on the subject.
Regrettably, because of my deteriorating eyesight, I just can't assemble electronic circuitry any more. For this reason, my ability to develop circuitry is severely handicapped. But here's where you may be able to help. I still enjoy the challenge of designing new circuits and improving old ones. I have published some proposed circuits on this site. If you build any of these, please let me know how it works.
I have not built the above circuits or models and so cannot guarantee that they work. As stated earlier, I hope that someone will build them, test them and let me know the results. In particular, I should like to know if the improved track circuit performs reliably over the supply range from +5V to +12V and if that supply range can be extended upwards, e.g. to +18V or +22V.
So far as I am concerned, anyone may freely build and use the circuits/models described here. Anyone may freely manufacture the circuit/model or a kit of parts for it and sell this for a profit. I am not seeking royalties. My only wish is to be credited as the original designer.
I am happy to discuss model railway electronics topics, whether or not they relate to the projects here or in my books. Just email me (click on the Contact Me button on the left).
If you entered my site directly using a link from a search engine, you may have missed out on the site navigation system. If you cannot see seven buttons along the left edge of the window, please click the Continue button below.