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Tektronix TM504 Test Equipment Mainframe w/ FG503 DM502 PS503A – Tested Working
I will ship it out the very same day you order FOR FREE via USPS Mail to make sure you get it FAST
If you have any issues with this item at all please just me a message immediately, before leaving response, and I promise to solve it whether that means a full refund or a replacement. Whatever the case, I’m here to make sure your experience ordering from me goes well.
Condition: Used – Tested & Working
For sale is a Tektronix TM504 modular test equipment mainframe loaded with three Tektronix TM500-series plug-in instruments:
* FG503 Function Generator
* DM502 Autoranging Digital Multimeter
* PS503A Triple Power Supply
The complete system has been tested and works. This vintage Tektronix test equipment setup is ideal for electronics troubleshooting, laboratory testing, circuit development, repair benches, engineering work, and electronic test equipment collections.
The TM504 provides the mainframe and power/interconnection system for compatible TM500-series plug-in instruments. Each installed module provides a different test function, making this a versatile bench instrument package.
INCLUDED EQUIPMENT
1. Tektronix TM504 Mainframe
* Manufacturer: Tektronix
* Model: TM504
* Product family: TM500 Modular Instrumentation
* Function: Mainframe and power module
* Capacity: Four plug-in compartments
* Application: Powers and houses compatible TM500-series instruments
2. Tektronix FG503 Function Generator
* Model: FG503
* Instrument type: Function generator
* Waveforms: Sine, square, and triangle
* Calibrated frequency range: 1 Hz to 3 MHz
* Usable frequency range: Approximately 0.01 Hz to 5 MHz
* Output amplitude: Greater than 20 V peak-to-peak open circuit; greater than 10 V peak-to-peak into 50 ohms under specified conditions
* Features: Frequency adjustment, amplitude control, DC offset, and voltage-controlled frequency input
3. Tektronix DM502 Digital Multimeter
* Model: DM502
* Instrument type: Digital multimeter
* Design: TM500-series plug-in DMM
* Application: Electronic circuit measurements and troubleshooting
* Intended for compatible voltage, resistance, and other electrical measurements supported by the instrument
4. Tektronix PS503A Triple Power Supply
* Model: PS503A
* Instrument type: Triple-output laboratory power supply
* Adjustable outputs: 0 to +20 V DC and 0 to -20 V DC
* Current capability: Up to 1 A per adjustable output in a compatible high-power compartment
* Additional output: Fixed +5 V DC at up to 1 A
* Features: Floating adjustable outputs, independent adjustment, tracking capability, and adjustable current limiting
The TM504 mainframe, FG503 generator, and PS503A supply specifications are based on published technical references. Actual output capability depends on operating conditions and compartment configuration. <Cite />
FEATURES & APPLICATIONS
* Modular laboratory test equipment
* Function generation for circuit testing
* Digital multimeter measurements
* Adjustable positive and negative DC supplies
* Fixed +5 V output for compatible circuits
* Electronics research and development
* Analog and digital circuit troubleshooting
* Component testing and repair
* Engineering and educational laboratories
* Electronics manufacturing and service benches
* Vintage Tektronix test equipment collection
COMPATIBILITY / FITMENT
The TM504 is designed for compatible Tektronix TM500-series plug-in instruments. The FG503, DM502, and PS503A are the modules included in this listing.
This is laboratory test equipment rather than an automotive or machinery replacement part. Verify plug-in compatibility, power requirements, electrical ratings, and the intended application before use.
TESTING & CONDITION
TESTED WORKING.
The mainframe and installed modules have been tested and are working.
Please review all photos carefully for cosmetic condition, front-panel markings, controls, connectors, displays, and included components. The exact equipment pictured is what you will receive.
These are vintage instruments and may show cosmetic wear consistent with age and prior handling. Testing confirms the reported operational status but does not necessarily constitute a complete calibration or certification to original factory specifications.
WHAT’S INCLUDED
* Tektronix TM504 mainframe
* Tektronix FG503 function generator
* Tektronix DM502 digital multimeter
* Tektronix PS503A triple power supply
No additional probes, test leads, cables, manuals, or accessories are included unless shown in the photographs.
SEO KEYWORDS
Tektronix TM504, Tektronix FG503, Tektronix DM502, Tektronix PS503A, TM500 test equipment, Tektronix modular test system, function generator, digital multimeter, triple power supply, laboratory power supply, vintage test equipment, electronics test bench, analog electronics, circuit testing, electronics troubleshooting, engineering laboratory equipment, adjustable DC power supply, 3 MHz function generator, Tektronix test instruments, industrial electronics test equipment.

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