• Country
• United States of America (USA)

• Manufacturer / Brand
• General Electric Co. (GE); Bridgeport CT, Syracuse NY

• Year
• 1966/1967

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 135796

• • Brand: Musaphonic

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

• Number of Transistors
• 17

• Semiconductors

• Main principle
• Superheterodyne (common); ZF/IF 455/10700 kHz; 3 AF stage(s)

• Wave bands
• Broadcast, (BC) Long Wave (LW), 2 x SW and FM or UHF.

• Power type and voltage
• Batteries / addl. power jack / Either batteries: "D" 6 x 1.5 or DC Power Adapter: 9 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: 17 Transistor World Monitor P-990C - General Electric Co. GE;

• Shape
• Portable set > 8 inch (also usable without mains)

• Notes

• The General Electric P-990C is a battery/DC Power Adapter operated portable 17 transistor BC, LW, 2x SW and FM receiver.  Has fine tuning control, two telescopic antenna's and a push-pull output stage. Has earphone jack that disconnects the speaker for private listening. Also has provisions for connecting an external FM antenna and an external SW antenna. Has two-tone brown leather case.

  Band Frequency Ranges are as follows:
  LW Band.........................170 - 400kHz
  BC Band.........................540 - 1620kHz
  SW Band #1...................1.8 - 5.1MHz
  SW Band #2...................6.0 - 18MHz
  FM Band........................88 - 108MHz

  The P-990 was available in 3 different versions:

  Model	Differences
  P-990A	-
  P-990B	Different TR7-TR10 transistors, deleted R9, R32, R45, R50 resistors
  P-990C	Differences not known

  The SAMS TSM-60 calls out model P-990A only. However the SAMS index for models P-990B and P-990C refer to this same TSM-60 reference and so therefore is applicable for this model also.

• Literature/Schematics (1)
• General Electric Service Notes (General Electric Service Guide Volume VII 1967 to 1969 Pages 144-146)

• Literature/Schematics (2)
• Photofact TSM Transistor Radio Series SAMS (TSM-60, October 1965, page 64-76)

• Author
• Model page created by a member from A. See "Data change" for further contributors.

• Other Models

• Here you find 2918 models, 2141 with images and 2045 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from General Electric Co. (GE); Bridgeport CT, Syracuse NY