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> Vintage simpson model 379 battery tester / meter tubes
Vintage simpson model 379 battery tester / meter tubes
It is a long discontinued item, but you can read about it here:
http://www.tequipment.net/Simpson379.asp
* Battery Tester, 1.5 to 90 V
* DC Voltage Ranges, 1.5 V/4.5 V/6 V/ V/67.5V/90 V
* Load Resistance, Within 5%
* Includes Replaceable Tip Leads
* Versatile -wide variety of resistance measurements in a small package
* Compact size is ideal for use in schools, on test benches, or at incoming inspection
Simpler testers may give false positive readings. The Model 379 puts a full load on the battery. Provides accurate indications of the condition of all standard flashlight, hearing aid (mercury cells), transistor, computer and portable radio batteries.Ideal for use in schools, on test benches or at incoming inspection facilities.
The operator's manual is here http:// /uploads/File/disc_manuals_datasheets/379.pdf
The Simpson Battery Tester, Model 379 provides twelve ranges for batteries
with voltage ratings from 1.5 to 90 volts. Each range is loaded to conform to
average conditions as recommended by battery manufacturers. The meter
dial has three English Reading Scales, each divided into three sections -
Good, Weak and Bad. The top colored scale is used for radio A batteries,
flashlight cells, etc. The center scale is used for hearing aid A batteries and
the lower scale for transistor B and C batteries. In addition to these, a fourth
is provided for use in determining the actual battery voltage. The following
table shows the load resistance, load current and voltage for the various
The above resistance should be within 5%.
The load current is the current through the load resistance plus the
