Re: Mike's 53 Clipper

Posted by Tobs On 2017/9/8 4:02:09

Thanks Howard and Kev.
I cleaned and oiled the clock about 2 yrs ago, and just put it into service a month ago. It lost about 2 min after a week of running. That is accurate enough for me. I found that supplying the clock with 6v instead of 12v was gentler on the winding mechanism, so I built a voltage reducer with a 7806 (or 7808?)and some other electronics.

Thanks Howard about the diagram of the voltage chopper. I checked wiring, and supply voltage and they are fine, so the chopper must be getting sketchy. My volt meter could not display output voltage because of the averaging, but I could measure a frequency, which makes sense.... so I am on the fence about getting an original part and using that, or using a modern solid state part. Either a Drok, or building my own reducer with a 7805.
A 7805 with a heat sink can supply 1.5 amps. If I make my own reducer, I might need to make 1 for fuel and 1 for the temp gauge...