I used to have one that looked like an AC electric power
test light. They might still sell AC power test lights
with a pair of test leads for checking if an outlet has 120
volts AC power.Test light $3-6 or so with a real dim amber colored glow.It might work(the dim "neon"testlight)shinning on your disc.I also see strobe lights with discs on the internet for sale for $25. I just searched "turntable strobe light" There might be better prices?
test light. They might still sell AC power test lights
with a pair of test leads for checking if an outlet has 120
volts AC power.Test light $3-6 or so with a real dim amber colored glow.It might work(the dim "neon"testlight)shinning on your disc.I also see strobe lights with discs on the internet for sale for $25. I just searched "turntable strobe light" There might be better prices?