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Tektronix TM504 Modular Test Equipment Mainframe w/ 2x FG502 Function Generators, DM502 Digital Multimeter & PS503A Power Supply – TESTED
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.
Offered for sale is a Tektronix TM504 modular test equipment mainframe equipped with two FG502 function generator modules, a DM502 digital multimeter, and a PS503A power supply module. This versatile vintage electronic test equipment system is suitable for electronics troubleshooting, laboratory testing, circuit development, repair facilities, engineering applications, and electronics enthusiasts.
The unit has been tested. Please review all photos for the exact configuration, cosmetic condition, included modules, and overall contents of the sale.
Included Equipment
* 1x Tektronix TM504 – Four-compartment TM500-series modular instrument mainframe
* 2x Tektronix FG502 – Function generator plug-in modules
* 1x Tektronix DM502 – Digital multimeter plug-in module
* 1x Tektronix PS503A – Triple-output power supply plug-in module
Technical Specifications
Tektronix TM504 Mainframe
* Manufacturer: Tektronix
* Model: TM504
* Series: TM500 modular instrumentation
* Configuration: Four plug-in compartments
* Function: Powers and interconnects compatible TM500-series plug-in instruments
* Application: Modular electronic test and measurement system
Tektronix FG502 Function Generators (2 Included)
* Quantity: Two modules
* Instrument type: Function generator
* Frequency range: Approximately 0.1 Hz to 11 MHz
* Provides adjustable test signals for electronic circuit development, troubleshooting, and laboratory testing
* Suitable for signal injection and waveform testing
Tektronix DM502 Digital Multimeter
* Instrument type: Digital multimeter (DMM)
* Function: Electrical measurement using a modular TM500-series instrument
* Intended for electronic troubleshooting, bench testing, and laboratory measurement
* Refer to the instrument’s manual for detailed measurement ranges and accuracy specifications
Tektronix PS503A Power Supply
* Instrument type: Triple-output DC power supply
* Positive and negative variable outputs: 0 to 20 V DC
* Fixed output: +5 V DC
* Intended for powering and testing electronic circuits and components
* Refer to the manufacturer’s documentation for output current ratings and operating limits
Condition
* Used vintage professional test equipment
* Tested
* Cosmetic wear consistent with age and previous use may be present
* Please examine all listing photos for the actual condition
* Calibration status is not certified unless specifically stated
* No accessories, cables, probes, manuals, or additional equipment are included unless shown in the photos
Applications
* Electronics repair and troubleshooting
* Engineering and laboratory test benches
* Analog circuit development
* Function generator signal injection
* DC circuit testing and power supply applications
* Vintage Tektronix test equipment collections
* Technical education and electronics workshops
Compatibility
Designed around the Tektronix TM500 modular instrumentation system. Verify plug-in compatibility and individual module specifications for your intended application.
Included in this sale: One Tektronix TM504 mainframe populated with two FG502 function generators, one DM502 digital multimeter, and one PS503A power supply, as pictured.
A versatile vintage Tektronix bench test system offering multiple instruments in one modular platform.

Tektronix TM504 W/ FG504 Generator, DM502 Auto DMM, PS503A Supply TESTED
$299.97
Tektronix TM504 W/ FG503 Generator, 2x DM502 Auto DMM, PS503A Supply TESTED
$299.97
Tektronix TM504 W/ 2x FG502 Generator, DM502 Auto DMM, PS503A Supply TESTED
$299.97
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