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Introduction
The TG300 series are precision 3MHz function generators with waveforms of sine, triangle,
ramp. pulse and DC from a variable amplitude 50 or 600 output. A TTL/CMOS auxiliary output
is also provided.
The frequency range is 0·03Hz to 3MHz selected by a seven decade range multiplier and
calibrated vernier. Both the frequency vernier and the sweep input can give 1000:1 frequency
change within a selected range. A 10:1 symmetry range permits ramp and pulse waveforms to be
produced.
The generator output level is 20Vpk-pk maximum from a 50/600 source. The level is set via a
switched attenuator plus vernier with a total range of >80dB. DC offset is vernier adjustable over
a ±10V range with centre detent for 0V. Waveform quality is good at all frequencies and signal
levels.
All models except TG310 feature a large liquid crystal display showing frequency and amplitude
simultaneously. Good resolution and a fast display update rate are maintained at all frequencies.
The TG330 also has internal LIN/LOG sweep with sweep output and AM. Amplitude modulation
of up to 100% is possible using the internal 400Hz oscillator or an external source.
On the TG320 and TG330 the display can also be used as an external 120MHz frequency meter
with up to 7-digit resolution.
Additional display annunciators indicate generator status when sweep, AM, etc. are in use.
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