Description
MRC A114265 Quad 1000 RF Deck 3500 VDC Rev E 4x Eimac Varian 3-500Z Tubes
High-voltage RF amplifier deck designed for quad-channel operation at 3500 VDC. This unit functions as a power amplification stage in industrial RF and telecommunications transmitter systems.
Specifications & What's Included
- Model: A114265 Quad 1000 RF Deck, Revision E
- Four channels with 4x Eimac Varian 3-500Z triode tubes (SK-406)
- 4x Jennings CADD-30-0215 vacuum variable capacitors (3–30 pF, 15 kV rating)
- Operating voltage: 3500 VDC
- EBM G2E120-AR38-01 cooling blower (220 VAC, 50/60 Hz)
- Milwaukee Transformer Co. 3181940 primary transformer
- Drive inputs (J7–J10, BNC) and RF outputs (J3–J6, N-type)
- Hobbs meter: 45,490 hours
Applications
Quad 1000 RF decks were used in industrial RF heating, broadcast transmitters, and telecom infrastructure from the 1980s–2000s. These units typically operated as final amplifier stages in systems requiring multi-kilowatt output at VHF and UHF frequencies. The 3-500Z tube platform was standard across many OEM transmitter designs, making this deck compatible with legacy industrial RF equipment.
Condition: Used
This MRC A114265 Quad 1000 RF Deck has been inspected and is in good used condition. It was pulled from a working environment where it was in active use. The chassis shows normal wear consistent with its age and service history — the gold anodized panels have light scuffs and surface marks, and the Hobbs meter reads 45,490.0 hours of total on-time. All four Eimac Varian 3-500Z triode tubes are present and installed. The four Jennings CADD-30-0215 vacuum variable capacitors, Milwaukee Transformer, and EBM blower are all included as visible in the photos. A yellow caution label on the front panel reads 'REINSTALL GROUND STRAP' — buyers should note this before powering. Please review our full photo set and contact us with any questions before purchasing.
This MRC A114265 Quad 1000 RF Deck has been inspected and is in good used condition. It was pulled from a working environment where it was in active use. The chassis shows normal wear consistent with its age and service history — the gold anodized panels have light scuffs and surface marks, and the Hobbs meter reads 45,490.0 hours of total on-time. All four Eimac Varian 3-500Z triode tubes are present and installed. The four Jennings CADD-30-0215 vacuum variable capacitors, Milwaukee Transformer, and EBM blower are all included as visible in the photos. A yellow caution label on the front panel reads 'REINSTALL GROUND STRAP' — buyers should note this before powering. Please review our full photo set and contact us with any questions before purchasing.
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: |
MRC |
Model: |
A114265 |
MPN: |
A114265 |
Secondary Model: |
Quad 1000 RF Deck |
Revision: |
Rev E |
Type: |
High Voltage RF Amplifier Deck |
SKU: |
40518 |
Voltage Rating: |
3500 VDC |
Number of Channels: |
4 |
Tube Type: |
Eimac Varian 3-500Z Triode (x4) |
Tube Part Number: |
SK-406 / 3-500Z |
Vacuum Capacitor: |
Jennings CADD-30-0215, 3-30PF, 15KV (x4) |
Capacitance Range: |
3–30 pF |
Capacitor Voltage Rating: |
15 kV |
Blower / Fan: |
EBM (Pabst) G2E120-AR38-01, 220VAC 0.36A |
Blower Voltage: |
220 VAC, 50/60 Hz |
Transformer: |
Milwaukee Transformer Co. 3181940 / F1-32522 |
Total On-Time (Hobbs Meter): |
45490.0 hours (x1.2 for 50Hz operation) |
Drive Connectors: |
J7, J8, J9, J10 (BNC-type, x4) |
Output Connectors: |
J3, J4, J5, J6 (N-type, x4) |
Main Connector: |
J1 (multi-pin circular), J2 (high-voltage coaxial) |
Condition: |
Used – Pulled from Working Environment |
Seller Notes: |
Includes 4x Eimac 3-500Z tubes, 4x Jennings vacuum variable capacitors, EBM blower, Milwaukee transformer |
Country/Region of Manufacture: |
United States |
Form Factor: |
Benchtop / Chassis |
Date Code / Work Order: |
9/24/90, W/O 6-7373 |
Condition Notes: |
MRC A114265 Quad 1000 RF Deck in good used condition, pulled from a working environment. All 4x Eimac 3-500Z tubes, Jennings vacuum capacitors, EBM blower, and Milwaukee transformer included. Hobbs meter reads 45,490 hrs. |
