Simpson 240-4

Analog  Volt - Ohm - Milliammeter

Special Guest Meter Page


This model is also known as the "Hammeter" as it was designed to serve the needs of amateur radio operators

for checking circuits in their radios.


Front panel controls include a 12 position range switch and a zero ohms knob.

Download a copy of the manual for the Simpson 240-4 here, schematics are included.


This meter is in "as new" condition, not a scratch to be found as shown in the photographs.

Case Size: 3 1/16" x  5 7/8" x  2 5/8"  -  Weight: 1 1/3 Pounds


Here is Roberts' Simpson 260 Series 8PM in a nice drop open Eveready carry case.

 Storage area for the test leads and manual makes this a nice setup.

Simpson 240-4 "Hammeter"Specifications


Ranges 0-15V, 0-75V, 0-300V, 0-750V, 0-3000V

Accuracy 3% of full scale * Sensitivity 1000 Ohms per volt


Ranges 0-15V, 0-150V, 0-750V, 0-3000V

Accuracy 4% of full scale * Sensitivity 1000 ohms per volt


Ranges 0-15mA, 0-150mA, 0-750mA

Accuracy 3%

Voltage Drop: 150mV, maximum


Ranges Rx1( 0-3000 ohms), Rx100 (0-300,000 Ohms)

Accuracy 3 of arc

All photographs shown on this Guest Meter Page are:

 Copyright 2010 - Robert Gibson - All Rights Reserved

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