RTS Telex PS-20 Power Supply from NASA JPL intercom, US $599.99 – Picture 0

RTS Telex PS-20 Power Supply from NASA JPL intercom, US $599.99 – Picture 1

RTS Telex PS-20 Power Supply from NASA JPL intercom, US $599.99 – Picture 2

RTS Telex PS-20 Power Supply from NASA JPL intercom, US $599.99 – Picture 3

RTS Telex PS-20 Power Supply from NASA JPL intercom, US $599.99 – Picture 4

RTS Telex PS-20 Power Supply from NASA JPL intercom, US $599.99 – Picture 5

RTS Telex PS-20 Power Supply from NASA JPL intercom, US $599.99 – Picture 6

RTS Telex PS-20 Power Supply from NASA JPL intercom, US $599.99 – Picture 7

Rts Telex Ps-20 Power Supply From Nasa Jpl Intercom

US $599.99

Tehachapi, California, United States
May 5th

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This auction is for one used RTS PS-20 power supply. I have a total of four for sale. They have minor scuffs as depicted in the photos, but are fully functional. No cables are included. These came from NASA's Jet Propulsion Laboratory (JPL) in Southern California. Selectable Mode Operation The PS-20 is selectable between RTS 2-channel, RTS 4-channel and Clear-Com mode. There is an audio link connection (1/4" (6.3mm) Stereo plug) on the back of the unit. The 3-pin XLR Monitoring output connector on the front of the PS-20 allows the user to connect a RTS user station to monitor a channel or both channels. There is a green status indicator for each channel on the front of the unit. Each of these indicators will remain lit during normal operation, but will turn RED during a channel current overload condition. Output current is automatically reduced during an overload, and normal operation is restored when the overload is removed. There is a Program Input connector on the rear panel. This can be used to connect a device that both channel 1 and channel 2 can listen to at the same time. A Channel Select switch on the front panel assigns the program to either or both channels. A Level control adjusts the program level to the intercom channel. Intercom Channels Connections Intercom channels (user stations) are connected to the rear panel of the PS-20 with 3-pin XLR connectors. Selectable Termination Impedance The IMPEDANCE SELECT switch on the rear panel allows each channel to be set for 200O or 400O operation. Select 200O for each channel operated independently. Select 400O for each channel connected to another channel. Specifications: Input Voltage: 90 to 264 VAC, 50 to 60 Hz Output Voltage: 28 VDC to 32 VDC Output Current: 2.00 Amps Maximum per channel Termination Impedance: Selectable 200 ohm / 400 ohm 1.8 Amps maximum per channel Ripple: < 0.2 V Program Input Levels: Nominal +2 dBu Balanced, High Impedance >10 kohm Two-Wire Output Levels: Nominal 30 VDC Unbalanced, selectable 200 ohm / 400 ohm Monitor Output: Nominal Gain of 0 dB for 1000 mVRMS input level on the program input. 30 VDC nominal, 100 mA maximum. Audio Link: Nominal input 2 dBu with a Gain of 0 dB

Condition:	Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections. ...	Brand	RTS Telex
Model	PS-20 Power Supply