Function / Pulse Generators

C. 1980-82
Thandar Electronics
Thandar TG100

This compact signal generator produced continuous waveforms—sine, square, triangle, or DC—used to test and calibrate electronic circuits. With a frequency range up to 100kHz, it was ideal for audio and low-frequency applications. The TG100 offered variable voltage and output shapes, allowing users to simulate different signal conditions. Common in repair benches, classrooms, and hobbyist workshops, it helped diagnose faults or evaluate circuit behaviour without needing a live input source. 

C.1982-82
Thandar Electronics
Thandar TG101

An upgraded version of the TG100, the TG101 doubled the available signal frequency range to 200kHz. It maintained the same waveform versatility—sine, square, triangle, and DC—while improving performance for higher-speed signal testing. Its extended range made it suitable for a broader range of audio, analog, and control applications. Like others in the TG series, it helped users simulate and evaluate circuit behaviour under different signal conditions. 

C. 1980-82
Thandar Electronics
Thandar TG102

Designed for more demanding tasks, the TG102 could generate waveforms up to 2MHz—twenty times the range of the entry-level TG100. It offered precise, stable signals for testing radio-frequency and digital circuitry. Additional features included external sweep capability and a wide voltage range, useful for pushing circuits to their limits. Positioned at a higher price point than other models in the TG series, it was aimed at users needing a more advanced tool for both everyday testing and complex electronic development.

C.1982-82
Thandar Electronics
Thandar TG105

Unlike the TG100–102 series, which produced continuous waveforms, the TG105 specialised in generating controlled pulses. It allowed users to set the frequency, width, and timing of each pulse independently—useful for simulating switching signals in digital circuits. Operating from 5Hz to 5MHz, the TG105 could mimic anything from slow relay triggers to high-speed data bursts. Its precise controls and multiple output options made it a versatile choice for testing logic circuits, timers, and microprocessors.