Sifam PPM meters

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tardishead

Well-known member
Joined
Aug 11, 2004
Messages
627
Location
Sussex, UK
It looks like Neve 33609, ADR F760 and BBC AM7 comps all use the Sifam PPM meter
but most zero on the left side of the scale whereas the ADR zeros on the right
is this just a case of zeroing the meter with the screwdriver control on the front or is it a special version of the meter
also how do you open up the meter to change the legend strip
 
I use a standard Sifam AL20SQ on my units but it tock some time to find the right parallell and serie resistor to make it work.
Before I made the new scale to the SQ20 I just printed out the original 2264 scale from a picture and put it on the scale inside and it tracked very good!
I even tried the "1176" way to show the gainreduction but it was to difficult to make it track to the original scale
 
The Sifam right-resting meters must still be available, Al Smart uses them on his compressors, and the folks at Sifam told me they have a coule of meters that were orientated like this.
 

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