FG501

Manuals – Specifications – Links – Pictures

The Tektronix FG501 is a function generator plug-in for the TM500 system.

The FG501 was designed by Roger Stenbock.

Key Specifications

	— FG501 —
Frequency	0.01 Hz to 1 MHz in decade steps
Output	Max. 20 Vp-p into high impedance, 10 V into 50 Ω (SN < B130000: 15/7.5 V)
Offset	Max. ±7.5 Vp-p into high impedance, 5 V into 50 Ω (SN < B130000: 5/2.5 V
	— FG501A —
Frequency	0.002 Hz to 2 MHz in eight decade steps
Output	Max. 30 Vp-p (into high impedance)
Attenuator	60 dB in 20 dB steps, 20 dB variable
Rise time	25 ns
Features	symmetry variable from 5 to 95%
	— All models —
Signals	sine, square, triangle, ramp, pulse
Features	voltage controlled frequency input (1000:1 ratio) triggering variable phase control internal sweep generator, 3 decades, lin/log gated output

The TRIG OUT signal is available on the front panel via a BSM female connector.

Version differences

The FG501 non-A frequency maximum is 1 MHz, while the "A" model is specified at 2 MHz.

The FG501 features seven different functions – Sine, Triangle, Square, +Ramp, –Ramp, Pulse ≤50% duty, Pulse ≥50%. The duration of ramp and pulse waveforms is always equal to the half-cycle time of the sine, square, or triangle waveform frequency

The FG501A model features only 3 functions – Sine, Triangle, Square – however, it has an added variable symmetry function, effectively allowing the same functionality as the non-A model The FG501A also features an attenuator, not found in the non-A model.

Links

• FG507 - same specs as FG501A, added internal sweep generator
• Zenwizard Studios - Tektronix FG501A Repair and Calibration/Alignment

Rear Interface

• Output: 28A (Common 27A)
• Trigger Output: 27B (Common 28B)
• Gate Input: 24B (Common 25B)
• VCF Input: 21B (Common 22B)

Pictures

FG501

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FG501A

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  right interior

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  left interior

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  right interior

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  left interior

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  rear connector