A useful device with integrated circuits and heavy duty transformer. Output voltage is provided through a slector switch, with jewel light, safety fuse and lock type terminals.
A 2-12 volts DC at 1 Amp
B 2-12 volts DC at 2 Amp
C 2-12 volts DC at 3 Amp
Workable on 230 volts AC with heavy tranformer, bridge rectifier, ammeter, current control switch and safety fuse, DC output 6/12 volts selectable. Available : 1 Amp / 2 Amp / 3 Amp
Made from seven selected stone agate, provided with rider attachement, capacity 200 gm sensitivity 1/5 mg, brass bean has 50 engraved divisions on either side, each division represent, 1/5 mg rider on scales, detachable pans are suspended from double hooks, mounted on wooded base with leveling screws and etakwood showcase.
Top pan digital display battery / mains operated. Seek and elegant. Simple to use. Easy to store Operates on four 1.5 Votls (AA size) battery.
Can be used with 6 volt adapter. Low battery indicator.
Overload Indicator. Mode function allows weight to be display in a gram or ounces. ON/TARE function to reset scale to zero, to wieght additional quantity.
Made from 7/10" thick brass block, fitted on heavy bakelite base, brass plugs and lugs are thorughy interlaped for perfect locking, packed in individual duplex box.
Range Total Resistance in Ohms
a 0.1 to 1 2
b 0.1 to 5 11
c 0.1 to 10 21
d 0.1 to 50 111
e 0.1 to 100 211
f 0.1 to 500 1111
g 1 to 10 20
h 1 to 50 110
i 1 to 100 210
j 1 to 500 1110
k 1 to 1000 2110
l 1 to 5000 11110
m 1 to 10000 21110
Designed for quick and accurate work, resistor values shown on thick bakelite sheet and read by a pointer, each dial consistas of 10 steps, superior quality switches are used to ensure low contact resistance, moving contacts aremade from phosphorous bronze lamination to ensure long life, fitted on spray painted box accuracy + 1 %
Wound with hanthal wire on 5.6cm dia tube, most suitalbe for high current temperature resistance 200 °C above room temeprature very useful for industries projects and research laboratories.
A simple instrument to teach student the techniques and method of e.m.f. measurement, fitted on nicely polished plywood base with sunmica top, solf wood gradutated scale 100 cmx 1 mm, resistance wire is streched along the ends of meter scale, brass CP connecting strips and brass terminals, provided with pencil jockey.
Avaialble : 4 Wire / 10 Wire
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