FG501

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

Manuals – Specifications – Links – Pictures

The FG501 was designed by Roger Stenbock.

The TRIG OUT signal is available on the front panel via a BSM female connector. The FG501 is specified at a max frequency of 1 MHz, while the "A" model is specified at 2 MHz. The FG501 features seven different functions: Sine, Triangle, Square, +Ramp, -Ramp, 50%>duty square, 50%<duty. The Duty cycle of the Ramp and pulses (not square) are determined by the equation 1/2,,f,, where the veriable ,,f,, represents frequency. The "A" model features only 3 functions: Sine, Triangle, Square. But the other absent functions compensated with a variable symmetry function, effectively allowing the same functionality with only three functions. The "A" model also features an attenuator, not found in the non-"A" model.

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
	— All models —
Signals	sine, square, triangle, ramp, pulse
Features	voltage controlled frequency input (1000:1 ratio) triggering variable phase control symmetry variable from 5—95% internal sweep generator, 3 decades, lin/log

Links

• FG507 - same specs as FG501A, added internal sweep generator
• FG501 @ barrytech.com
• Zenwizard Studios - Tektronix FG501A Repair and Calibration/Alignment

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

Components