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Collins Radio Company Transformer, 677-0078-00, US $640 – Picture 0
Collins Radio Company Transformer, 677-0078-00, US $640 – Picture 1
Collins Radio Company Transformer, 677-0078-00, US $640 – Picture 2
Collins Radio Company Transformer, 677-0078-00, US $640 – Picture 0
Collins Radio Company Transformer, 677-0078-00, US $640 – Picture 1
Collins Radio Company Transformer, 677-0078-00, US $640 – Picture 2

Collins Radio Company Transformer, 677-0078-00

US $640

  • New Berlin, Wisconsin, United States
  • Jan 29th
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This is a transformer made for Collins Radio Company by United Transformer Corp. (UTC). The label is somewhat scratched and hard to read, but I can make out the following part numbers: 677 0078 00, which looks like the type of numbering that Collins or Rockwell Collins uses. The other number on the label is 96045. I could not find a reference to either number. The transformer appears to be unused (New Old Stock), as the mounting tabs don't show paint scratches that mounting screws would have made, and the terminals don't appear to have had wires soldered to them. Bench measurements show that it has 4 separate windings in two pairs, DC resistance between terminals 1-2 and 3-4 is 90 ohms, between terminals 5-6 and 7-8 is about 10 ohms. AC measurements show a voltage ratio from terminals 1-2 or 3-4 to terminals 5-6 or 7-8 is 2.86:1. Height above chassis is 3-3/4", diameter 3", mounting holes spaced at 2-3/8" X 2-3/8", weight 3-1/4" lbs.

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