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Cossor Model 501



bulletPrecision Apparatus Co. Series 856-G Multi-meter
Precision Apparatus Co. (a subsiderary of Pacotronics). They were base in Elmhurst in New York state. The also had a subsidiary called PACO who manufactured kits for the electronic market. I purchased this 856 series multi-meter in South Africa and it is dated around 1942. It is in perfect working order.It is housed in a wooden mahogany case.
Click on the pictures for full size photograph

Precision Apparatus Company

92-27 Horace Harding Blvd.
Elmhurst L.I.,  N.Y

The Precision Apparatus Company still exists under the name B&K Precision.

 Basic specification
 0 to 6000 volts AC or DC,  1000 and 20,000 Ohms per volt
 0 to 300 milliamperes and 0 to 12 amps
 0 to 60 Megohms, -12 to +70 Decibels.
Capacity measurements
Manual pages and circuit diagram

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  © Copyright 2003 Bob Rathbone. All rights reserved