steenhart wrote:Hi Joe,
on the coil there is a little mirror and it will reflect the light beam to the front.
Because there is no needle this is a very quick system fasten than every normal Vu-meter.
Normally you need the vintage TAB U70 amplifier.
Have lot of these meters so will try your board once.
Ok I had a look at the U70 and it does the rectifying and attack and release setting and runs the meter on about 150v rail so looks like there is just a coil of wire in meter.
Does the light run separately? Does it have any voltage current of wattage markings on the lamp?
If you had a couple of photos inside would give me a clue and if you could measure the ohms between the 2 coil wires this would give me an idea on how to get these running on the VU buffer?