obobskivich
Headphoneus Supremus
So, I've got some old meter gauges on an ancient (and tmk malfunctioning) amplifier "thing," that I want to rip off and re-purpose on a working amplifier. I don't know a thing about them, and they're probably super cheap. You can see the device here:
As it is, they feed from the live audio signal (probably through some of the transformers in there - although at 15-20V in they will actually act as output transducers :eek, and that's fine; they overshoot and dance around like mad. That's basically what I want (yes it's just a lightshow) - so my question is, how do I take them and adapt them to take a line level signal and not the high level signal that device is designed to take right now?
I found some schematics on Elliot's site, but they assume you have a meter of known value (or a calibrated meter); I'm assuming I have neither.
Again, actual accuracy doesn't bother me here (I'm not actually after measuring VU) - just having the nifty little meters dance around to a line level signal as they do right now with a high level signal would be perfect. So how do I go about measuring/finding out more about these buggers, and implementing them?
As it is, they feed from the live audio signal (probably through some of the transformers in there - although at 15-20V in they will actually act as output transducers :eek, and that's fine; they overshoot and dance around like mad. That's basically what I want (yes it's just a lightshow) - so my question is, how do I take them and adapt them to take a line level signal and not the high level signal that device is designed to take right now?
I found some schematics on Elliot's site, but they assume you have a meter of known value (or a calibrated meter); I'm assuming I have neither.
Again, actual accuracy doesn't bother me here (I'm not actually after measuring VU) - just having the nifty little meters dance around to a line level signal as they do right now with a high level signal would be perfect. So how do I go about measuring/finding out more about these buggers, and implementing them?