The Tektronix TM506 is a six-compartment mainframe in the TM500 system. The RTM506 is the electrically identical rack-mount version.
The TM506 supplies five unregulated voltages to the plug-in modules:
- +33.5 V DC, 350 mA max
- -33.5 V DC, 350 mA max
- +11.5 V DC, 1.3 A max in regular compartment, 4 A max in high-power compartment
- 25 V AC, 25 VA max in regular compartment, 60 VA max in high-power compartment
- 17.5 V AC, 30 VA max in standard compartment, 95 VA max in high-power compartment
The TM506A is a newer variant of the TM506 that essentially looks exactly the same as the TM5006, i.e. it is higher, has air outlets on the front and a flip switch instead of a pull switch.