Powerband RFX75
Documentation Project

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The RFX75 is a new RF section for Magnum 10 Meter Amateur transceivers.
The RFX75 can be bought as a replacement part.
It's is a low cost solution to replace bad RF driver and final output stages in other 10 Meter Amateur transceivers that used obsolete / discontinued transistors.

Specification Sheet

Schematic Diagram

Schematic Diagram (Serial number 49090000 and higher) (See Update Information)

ERF7530 Datasheet Rev 2.0

PCB Layout

General Information and Help Guides
Troubleshooting and General Help Guide
Pre-installation checklist for the RFX75
Coax Cable Locations On the PCB
Mounting Template

Service Bulletins

Cobra 29 Carrier Increase Note

Install Guides (There will be more brands and models soon so check back)
Radio
Doc. Rev.
Cobra 25
1.0
Cobra 29
4.0
Cobra 29 (For Cobra 29's made in 2010.
Apparently Cobra made some significant changes to the Cobra 29 recently.

2.0
Cobra 148 (Early Model)
1.0
Cobra 148 (New Model)
2.0
EPT3600xxx Chassis Radios
3.0
EPT6900xxx Chassis Radios
2.0
Galaxy DX929 (2SC1969 Chassis Version)
1.0
Galaxy DX929 MOSFET Final Version
2.0
Galaxy DX939, DX949, DX959 and Ranger 396, 696, 966 (2SC1969 Chassis Version)
2.0
Galaxy DX939, DX949, DX959 and Ranger 396, 696, 966 (MOSFET Chassis Version)
2.0
Magnum S-3, Magnum S-6, and Magnum S-9 10 Meter Amateur Transceivers with Main Printed Circuit Board Numbers* 9821R17 through 9821R21
1.0
Magnum OmegaForce S45 and DeltaForce
1.0
RCI 2950
1.0
RCI 2950DX
1.0
Texas Ranger 127FSC
1.0
Uniden 68 series radios
1.0
Uniden 78 series radios
1.0
RFX75 install sheet for the uniden 880
1.0
Install an ERF2030 MOSFET RF Transistor in a Uniden Bearcat 880
1.0

 

 

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