|calstan_223_user_manual.pdf||INSTRUCTIONS FOR OPERATING CALSTAN MODEL 223
COMBINED TUBE CHECKER AND MULTITESTER
The CALSTAN combined tube checker and multi-tester is
literally a universal instrument, its application being extremely
simple. Its main uses are:-
The efficiency of valves. Milliamps D.C. .5 ranges.
Shorts and leakage in valves. Volts D.C. ...5 ranges.
Electrolytic condensers. Volts A.C. ...5 ranges.
Dry type (static condensers). Ohms. ...5 ranges.
EQUIPMENT:- 1 pr. top cap wires, 1 pr. test prods.
BATTERIES:- 3 No. 3678 Eveready, 1 U2 Eveready. These
batteries should be replaced when the ohms scales can no longer be
brought to full scale. They may be easily removed by slackening
the screws holding the metal clamps.
OPERATION:- THE OPERATOR SHOULD READ THESE INSTRUCTIONS VERY
CAREFULLY IF COMPLICATIONS ARE TO BE AVOIDED.
TUBE CHECKER PORTION:- Before a valve is tested it is