Precision Apparatus
Series 832S
&
Series 834
Volt-Ohm Meters


These volt-ohm meters (VOMs) were made by Precision Apparatus Co. Both are old and are enclosed in a wooden case with dovetailed corners.

The VOM below is a Series 832S. It was manufactured by Precision Apparatus Co. of Elmhurst, NY. It can measure AC voltages up to 2400 V and DC voltages up to 1200 V. It can also measure resistance. This meter works reasonably well and is reasonably accurate as compared to my Fluke 87 DVM.



The VOM below is a Series 834. It was manufactured by Precision Apparatus Co. of Brooklyn, NY. It can measure DC voltages up to 1200 V. It can also measure resistance. This meter is non-functional as someone had been inside and removed several parts. Part of the meter needle had been broken off. I took the meter movement apart and found the broken needle part and glued it back in place. The meter movement itself does work. Apparently someone connected this to a high voltage with the meter on a low voltage scale. This action apparently broke the meter needle off and burned out some of the internal parts. The AC/DC/Resistance mode switch on the left is not original.