Flashing lights of the 100M
Continuing with some stuff from my ongoing silly giant-sized clone 100M – here is the flashing lights bit from the VCA and VCF circuits in action.
It’s unlikely it’ll be of any use to anyone, ‘cos it uses a (possibly unregulated) 22V power line from the 100M PSU, but, just in case – here’s the layout:
The lights on the 100M are meant to be useful, telling you when signal is coming out of the output, and if you’re pushing the level too hard. In practice, the overdriving seems to kick in slightly before the red light comes on.
It’s lot of effort for some pretty lights, but the whole thing has been a ridiculous endeavour so far anyway; so in for a penny, in for a pound.
The 100M level detector works more reliably than I’ve so far managed with the System 700 equivalent, which seemed to need very specific transistors, and even then occasionally gets stuck.