• Country
• United States of America (USA)

• Manufacturer / Brand
• Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)

• Year
• 1977 ?

• Category
• Power supply/conditioner or battery or charger 

• Radiomuseum.org ID
• 304749

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Transistors
• 11

• Semiconductors
• 2N6405 2N6394 2N6394 2N5885 2N5885 2N5885 2N6569 2N6569 2N6569 2N6554 2N6554 MC1723 MC1723 MC1723 MC3423 MC3423 MC3423

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 95-125 or 205-250 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: Micromodule Power Supply M68MMPS1-1 - Motorola Inc. ex Galvin Mfg.Co

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 9.5 x 5 x 6.25 inch / 241 x 127 x 159 mm

• Notes

• The MM68MMPS1-1 is a linear power supply for use in Motorola Micromodule based systems, such as CAVIAR microcomputers, which was made for Motorola by Power-One (now Bel Power Solutions). It was supplied with a 10-conductor cable that connected its +5v, -12v and -12v outputs to any Motorola Micromodule or EXORciser motherboard.

  Input voltage 95 - 125v or 205 - 250v 47 - 420 Hz.
  Outputs:
  +5v DC 15A, 2 mV rms ripple
  -12v DC 1.5A, 1 mV rms ripple
  +12v DC 2.5 A, 1 mV rms ripple

  Calibration range 5v +- 0.5v, 12v +- 1v.
  Overvoltage protection on 5v DC output:
  Output rise to 7v reduced to 5v or less within 50 microseconds.

  Power fail (turn on/turn off transients):
  5v output: +7v max; -0.5v max.
  +12v output: +17v max; -0.3v max.

  Remote sensing on 5v output compensates up to 0.5v DC drop.
  Fan cooling at min 50 cfm required for operation at greater than 50% of rated load.

• Net weight (2.2 lb = 1 kg)
• 5.1 kg / 11 lb 3.7 oz (11.233 lb)

• Author
• Model page created by Bruce Taylor. See "Data change" for further contributors.

• Other Models

• Here you find 4508 models, 2955 with images and 4002 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)