Pinball Machine
Dating back to the 70s. Mechanical faults, processor board interconnection problems, power supply and EPROMs having lost their memory. A big struggle to get working correctly. At least we had fun in ...
Browsing Archive May, 2019
An interesting project
Here is an interesting project. A client asked me if I could make a power supply for a coil. Okay was the reply, but I wanted more information obviously. After a couple of hours conversation and ...
A local radio station transmitter
A local radio station reported that their transmitter was suffering with low output, with alarm lights on, indicating a bad SWR reading. This is normally where the antenna is badly matched to the ...
Not my favorite things to work on!
Well, not my favorite things to work on, but the word has got around. A selection of organs that have come in recently. Some very hard to fault find. There have been a couple of 1970s organs. Mainly ...
A few radios recently restored
The local vintage car club is good fun. A few radios recently restored. The most interesting one was a 6 Volt American Bosch round unit. Built like a domestic radio, using 6 volt heater valves. This ...