Description and Specification for Lab Tenders
Study of SCR and A.C. Phase Control.
This protects external instruments from damage if they are not isolated.
The unit is operative on 230V ±10% at 50 Hz A.C. mains. Good quality,
reliable terminal/sockets are provided at appropriate places on panel
for connections/observation of waveforms. Adequate no. of patch cords
stackable 4 mm spring loaded plug length ½ meter. Strongly supported by
detailed operating instructions, giving details of object, theory,
design procedures, report suggestions and book references. Weight: 7 kg.
(approx.). Dimension: W 412 x H 150 x D 310.
Features:-
• Two potentiometers for resistance controlled ramps.
• An isolation transformer 230 VA.C. 250 mA.
• Bridge rectifier for full-wave phase control with zener regulator.
• Two potentiometers for resistance controlled pedestals.
• Uni-junction transistor 2N 2646.
• Pulse transformer 1:1:1.
• Three SCRs for half-wave and full-wave inverse parallel connections.
• Adequate no. of other electronic components.
• Mains ON/OFF switch, fuse and jewel light.