PS505

Tektronix PS505
3.0–5.5 V, 4 A power supply Tektronix PS505 Produced from 1975 to 1977 Manuals Tektronix PS505 Manual (Manuals are OCRed PDF files unless noted otherwise)

Manuals – Specifications – Links – Pictures

The Tektronix PS505 is a 3.0–5.5 V, 4 A power supply plug-in for the TM500 system.

It is designed to operate in the right-hand, high power compartment of a TM504 or TM506.

In a low-power compartment, a rear switch limits the output to 1 A (indicated by front-panel "NON FLOATING / 1 A LIMIT" LED).

Key Specifications

Output voltage	3.0 V to 5.5 V DC, floating (only if operated in a high-power compartment)
Output current	4 A (must be limited to 1 A in a low-power compartment); foldback limit from 4.1 A to 1.5 A (latching)
Overvoltage protection	7 V
Line regulation	±10 mV for 10% line voltage change
Load regulation	±5 mV for 0.5 to 4 A load current change, 20 μs transient recovery
Stability and drift	0.1% + 5 mV drift in 8 hours; max. 0.01%/°C

Links

Documents referencing PS505

Document	Class	Title	Year	Links
070-2088-00.pdf	Book	TM500 Series Rear Interface Data Book	1975	AF501 • AM501 • AM502 • DC501 • DC502 • DC503 • DC504 • DC505 • DC505A • DM501 • DM502 • FG501 • FG502 • FG503 • MR501 • PG501 • PG502 • PG505 • PG506 • PG508 • PS501 • PS502 • PS503 • PS503A • PS505 • RG501 • SC501 • SC502 • SG502 • SG503 • TG501
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
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

Internals

The regulator circuit uses one 741 and one Signetics 5558 opamp. The voltage reference is a 9 V zener diode.

Prices

Year	Catalog price	In 2026 dollars
1975	$150	~$900

Pictures

Front view
Rear view (note power limit sense switch)
Front view
Block diagram
Schematic

Better pictures needed - please contribute

Components