Siam Meter specification

[Hansblooey Ribbon]

Hello.
I have a pair of these meters, Looks like they were intended for a piece of Peavey/ AMR gear. Would like to find out what their specs are as the Sifam site info doesn’t correlate .
Thanks!
-ahb

 

[zamproject]

http://www.sifam.com/Downloads/Content/Vintage_AL Meters-A4_web.pdf

 

[Hansblooey Ribbon]

Thanks Zam.
There are some discrepancies…. Mine have 1.374V on the label. And what’s the 1.5 printed in the little star or Ferrous/Non-ferrous mean?
These are in a completed Zener Limiter and they do work but I’m curious if the specs are different than the ones Don-Audio sells.
Thanks
http://www.sifam.com/Downloads/Content/Vintage_AL Meters-A4_web.pdf

 

[Brian Roth]

Some meters will give erroneous readings if mounted on a steel (ferrous) panel, but the markings on this meter aren't clear about that.

Bri

 

[zamproject]

Mine have 1.374V

It's 1.734 which is exactly +7dBu
If it's a custom made, maybe it's what they need for 0Vu reading...don't ask me why...or it's just the full scale reading, +3Vu is +7dBu
Should be easy to confirm by measurement

 

[zamproject]

Inverted U with bar symbol mean moving frame
Diode symbol mean fitted with rectifier
Alternative symbol mean for AC reading
Star symbol is for dielectric test, here 1.5Kv
And it is specified that to read full scale you need 1.734Vrms across 3k6 resistor (not fitted)

Really look like a standard Vu to me...now as a GRM in a compressor, ballistic may be too slow...or not, depending of taste and what you want to see.

 

[Hansblooey Ribbon]

Meter label Decoded! Super cool and appreciated.
Thanks Zam

 

[zamproject]

Meter label Decoded!

have a double check, I'm not 100% sure