backstreets
Active member
I acquired a set of old Akai (Roberts) VU meters. I've restored a Studer B67 before and racked a bunch of Neumann and Telefunken modules so I have some knowledge in fiddling around with audio electronics but never worked with VU meters before.
I'm about to build a meter bridge with them, but in no hurry with that. At the moment though I would just want to check if they really work. So how would I go about?
The first thing that concerns me is that they aren't all down at -20 now when they are disconnected, shouldn't they be that?
There's also 4 poles on the back of each, two big ones with cut red and white wires which would make me guess it's the positive/negative poles and then two smaller posts with blue colored wires. What are those?
Pic attached.
Thanks in advance for help!
/L
I'm about to build a meter bridge with them, but in no hurry with that. At the moment though I would just want to check if they really work. So how would I go about?
The first thing that concerns me is that they aren't all down at -20 now when they are disconnected, shouldn't they be that?
There's also 4 poles on the back of each, two big ones with cut red and white wires which would make me guess it's the positive/negative poles and then two smaller posts with blue colored wires. What are those?
Pic attached.
Thanks in advance for help!
/L