SG504

Tektronix SG504
leveled sinewave generator Tektronix SG504 Produced from 1974 to 1993 Manuals Tektronix SG 504 Instruction Manual 070-1632-01 (Manuals are OCRed PDF files unless noted otherwise)

Manuals – Specifications – Links – Pictures

The Tektronix SG504 is a leveled sinewave generator plug-in for the TM500 system.

Key Specifications

Frequency range	50 kHz or 6 MHz (Ref), 245 MHz to 550 MHz (Lo), 495 MHz to 1050 MHz (Hi)
Output amplitude	0.5 V_p-p to at least 4 V_p-p, flat to within ±4%
Monitor output	0.3 V_p-p into 50 Ω
FM input	±9 V into 50 kΩ (DC to 100 kHz) produces ±0.05% to ±0.4% deviation depending on frequency

Links

Documents referencing SG504

Document	Class	Title	Year	Links
Tekscope 1973 V5 N5 Sep 1973.pdf	Article	Verification or Calibration? A time saving decision	1973	TM 500 Cal Package • TM503 • TG501 • PG506 • SG503 • SG504
070-2088-01.pdf	Book	TM500 Series Rear Interface Data Book	1976	AF501 • AM501 • AM502 • AM511 • DC501 • DC502 • DC503 • DC504 • DC505 • DC505A • DD501 • DM501 • DM502 • FG501 • FG502 • FG503 • FG504 • LA501 • MR501 • PG501 • PG502 • PG505 • PG506 • PG508 • PS501 • PS502 • PS503 • PS503A • PS505 • RG501 • SC501 • SC502 • SG502 • SG503 • SG504 • SW503 • TG501 • TR501 • TR502
Tekscope 1976 V8 N1.pdf	Article	New Products	1976	FG504 • SG504 • Lab Cart Model 3 • SW503 • C-5A
070-2088-04.pdf	Book	TM500 Series Rear Interface Data Book	1985	AA501 • AF501 • AM501 • AM502 • AM503 • AM511 • DC501 • DC502 • DC503 • DC503A • DC504 • DC505 • DC505A • DC508 • DC508A • DC509 • DC510 • DC5009 • DC5010 • DD501 • DL502 • DM501 • DM501A • DM502 • DM502A • DM505 • DM5010 • FG501 • FG501A • FG502 • FG503 • FG504 • FG507 • FG5010 • LA501 • LA501W • WR501 • MR501 • PG501 • PG502 • PG505 • PG506 • PG507 • PG508 • PS501 • PS502 • PS503 • PS503A • PS505 • PS5010 • RG501 • SC501 • SC502 • SC503 • SC504 • SG502 • SG503 • SG504 • SG505 • SW503 • TG501 • TR501 • TR502 • MI5010 • MX5010 • SI5010

Output Head

The SG504 is often found without the output head (015-0282-00) on the used market. David Partridge did an excellent teardown and reverse engineering of the output head and sells kits to make new heads.

It's fairly easy to use that schematic to make a new level head that fits in a standard BNC Pomona box since its function is really just a 250 MHz to 1050 MHz temperature compensated power meter with 50 Ω feed-thru. See the pictures for an example.

As of April 2016, Ebay seller "ancelb" is selling SG504 leveling (output) heads that are specified to perform much better than the original Tektronix heads. See photo below.

There is an open source project to replace the output head at hackaday.io.

Rear Interface

Connector Pin	Signal	Notes
28A	Frequency monitor output (common on 27A,28B)	cable reconnection required
24B	FM input (common on 25B)	cable reconnection required
21B	Remote amplitude control input (common on 22B)	soldering a cable and resistor required