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Radio & Amplifier Modifications

NFB2 Feedback Modification Kit - 2 Transistor Amplifier, HL36U Mobile Amplifier, 420-450 MHz, 5-30 Watts, 13.8v DC, Power Plus,

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  1. Service Manual for the Ranger RCI2950DX / RCI2970DX 10m Transceivers

    Service Manual for the Ranger RCI2950DX / RCI2970DX 10m Transceivers

    $10.91

    Service Manual for the Ranger RCI2950DX / RCI2970DX 10m Transceivers

    Service Manual for both RCI 2950DX and RCI2970DX (Not for standard 2950 / 2970)

    Manual includes:

    • SPECIFICATIONS
    • OPERATION
    • PROGRAMMING
    • CIRCUIT DESCRIPTION
    • ALIGNMENT
    • MAINTENANCE
    • DIAGRAMS AND PARTS LIST

    SKU: SMRCI29DX

  2. Amplifier Plan Set Construction & Operation by Lou Franklin

    Amplifier Plan Set Construction & Operation by Lou Franklin

    $14.91

    This plan set explains in detail how to build a solid-state RF amplifier suitable for use on the 80-10 meter Amateur Radio Bands.  Consists of 28 pages of helpful, step by step instructions to build a linear amplfier from start to finish.

    Includes:

    • Mechanical Assembly Methods
    • Component details
    • Printed Circuit Board
    • Theory of Operation
    • Broadband Transformers
    • Power Supply
    • Additional Reading Material references
    • Part Sources
    • Step by Step Assembly Instructions
    • Testing and Checkout
    • Schematic Circuit Diagram
    • Templates for Heatsink, Cabinet, Front and Back panels

    MFR: CBC International / Lou Franklin

    SKU: CAOML

  3. HL-36U RF Limited "Power Plus" Mobile Amplifier 420-450 MHz 5-30 Watts 13.8v DC (NOS)

    HL-36U RF Limited "Power Plus" Mobile Amplifier 420-450 MHz 5-30 Watts 13.8v DC (NOS)

    $399.91

    The Power Plus HL-36U 70 Centimeter All Mode Linear Amplifier is the perfect combination of performance and value.  Employment of strip-line technology coupled with modular construction provides the HL-36U with unsurpassed reliability and RF Performance. 

    • Switchable GaAsFET receive preamplifier
    • Low Noise filter
    • Switchable Dual Mode operation (FM / SSB)
    • Input power protection circuitry (Overdrive protection)
    • RX and TX indicator LED's
    • Mounting Bracket / Hardware

    New Old Stock * No longer available for export
    MFR: RF Limited
    SKU: HL-36U
    (90 day limited over the counter warranty through RF Parts)
    NOTE: These amplifiers were found in storage.  Factory no longer produces this item and does not support warranty offered in manual. 

  4. NFB2  Feedback Modification Kit - 2 Transistor Amplifier

    NFB2 Feedback Modification Kit - 2 Transistor Amplifier

    $3.91

    NFB2  Feedback Modification Kit - 2 Transistor Amplifier

    SKU: NFB2

    Data Sheet

  5. Technical Manual for the Ranger AR3300/3500 10m Transceiver

    Technical Manual for the Ranger AR3300/3500 10m Transceiver

    $9.91

    Technical Manual for the Ranger AR3300/3500 10m Transceiver

    This manual will help you troubleshoot and service your Ranger AR3300/3500 transceiver.  Includes updates and modifications to customize your particular requirements.  Included Technical bulletins and chassis schematics.

    Includes:

    • Introduction
    • Technical Bulletins
    • Voltage Charts
    • Parts List
    • IC Pin Outs
    • Board Layouts
    • Alignment Procedures
    • Schematics

    SKU: SMAR3300-3500

5 Item(s)