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NARCO

NARCO T-12MP-7 Transistor Modulator-Power Unit 13.75V DC National Aeronautical

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SKU:
14974
MPN:
T-12MP-7
Condition:
Used
Availability:
Usually ships within 1–2 business days.
Weight:
10.00 LBS
Shipping:
Calculated at Checkout
  • NARCO T-12MP-7 Transistor Modulator-Power Unit — right-side three-quarter view showing black metal chassis, ventilation grid top, and mounting feet
  • NARCO T-12MP-7 rating plate showing model number, 13.75 Volts D.C., National Aeronautical Corp. Fort Washington PA, and RCA license notice
  • NARCO T-12MP-7 — left-side three-quarter view showing ventilation grid, black chassis, and red component label visible through grid
  • NARCO T-12MP-7 — bottom/side panel view showing three Delco 2N441 transistors with labeled caps
  • NARCO T-12MP-7 — rear panel view showing '12 Volts' label, two trimmer potentiometers (75504-1), and circular multi-pin connector with wire lead
$31.90
Was: $90.00
Current Stock: 1

Sold Out

Description

NARCO T-12MP-7 Transistor Modulator-Power Unit 13.75V DC National Aeronautical

Transistor-based modulator and power supply unit manufactured by NARCO (National Aeronautical Corp.) for aircraft radio communication systems. Converts 12V DC input to 13.75V DC output for modulation and amplification functions in avionics equipment.

Specifications & What's Included

  • Model: T-12MP-7 | Part Number: M-04105-1
  • Input: 12V DC | Output: 13.75V DC
  • Active Components: Three Delco 2N441 transistors
  • Connector: Military-style circular multi-pin (rear panel)
  • Form Factor: Chassis mount with mounting feet
  • Manufacturer: Fort Washington, PA, USA | Licensed by RCA
  • Unit only — no accessories included

Applications

This modulator-power unit was used in avionics systems, particularly aircraft radio and communication equipment from the mid-20th century. NARCO was a significant supplier of aviation electronics, and units of this type provided regulated DC power and signal modulation for transmitter and receiver circuits. Typically found in legacy general aviation and commercial aircraft systems.

Condition: Used
This NARCO T-12MP-7 Transistor Modulator-Power Unit has been inspected and appears to be in good used condition overall. The black metal chassis is intact and shows the expected surface wear and minor scuffing consistent with age and prior avionics service. The rating plate is fully legible. Three Delco 2N441 transistors are present and their label caps are intact. The rear circular multi-pin connector is present and appears undamaged. This unit has not been powered or tested at our facility. Please view our photo set and contact us if you have any questions.
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Warranty Information

We stand behind every item we sell with a 30-day money-back guarantee. If your item arrives not as described, you may return it within 30 days for a full refund. Please inspect your purchase upon arrival and contact us with any questions.
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Additional Information

Brand:
NARCO (National Aeronautical Corp.)
Model:
T-12MP-7
MPN:
T-12MP-7
Type:
Transistor Modulator-Power Unit
SKU:
14974
Output Voltage:
13.75 Volts DC
Input Voltage:
12V DC (labeled 12 Volts on unit)
Transistors:
Delco 2N441 (3 units visible)
Connector Type:
Circular multi-pin (military-style, rear panel)
Form Factor:
Chassis/Box Mount with mounting feet
Application:
Avionics — aircraft radio/communication modulator
Country/Region of Manufacture:
United States
Manufacturer Location:
Fort Washington, PA, U.S.A.
License Notice:
Licensed by Radio Corporation of America (RCA)
Part Number Label:
M-04105-1
Condition:
Used – Pulled from Working Environment
Seller Notes:
Unit only — no accessories included. See photos for full detail.
Condition Notes:
NARCO T-12MP-7 Transistor Modulator-Power Unit in good used condition. Chassis intact with age-appropriate wear. Three Delco 2N441 transistors and multi-pin connector present. Not powered or tested at our facility. See photos.
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