Mains Test Block

Ideal for appliance testing and supplying voltage dependent components
Output voltmeter & ammeter
Analogue control dial to adjust output
Cable storage
Output: UK 13A (BS1363A) socket, IEC socket & test sockets
No waveform distortion
High efficiency
Accessories shown are IEC to Safeblock & IEC to 4-way connector

These units do NOT provide isolation from the mains.

Variable Auto Transformers

Continuously variable alternating current (a.c.) output voltage
Rugged construction
Low operating torque
High efficiency/excellent regulation

Silver-plated commutator
Low magnetising current
No waveform distortion, smooth linear output & overload capacity
Screw terminals
Complete with knob and dial