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  1. BIRD - 8306-100-N - Coaxial attenuator, 10dB 25 watt.
    BIRD - 8306-100-N - Coaxial attenuator, 10dB 25 watt.
    $90.00
    Coaxial attenuator, 10dB 25 watt. DC-4GHZ 50 Ohm. "N" male to "N" female connectors. Dimensions: 0.994" (25.2mm) D x 5.357" (136.0mm) long. Learn More
  2. POLYPHASER CORP - IS-NEMP-C2 - Nuclear Blast/Lightning Strike Protector 0.2-1GHz
    POLYPHASER CORP - IS-NEMP-C2 - Nuclear Blast/Lightning Strike Protector 0.2-1GHz
    Special Price $119.98 Regular Price $139.95 As low as $109.98

    POLYPHASER CORP - IS-NEMP-C2 - High Altitude Nuclear Blast / Lightning Strike Impulse Suppressor.

    Coaxial Nuclear EMP Protector. This radio frequency surge protector / lightning surge arrestor helps protect your equipment from electromagnetic pulse (EMP) or power surges that are commonly caused by lightning or other strong electrical changes. Our radio frequency coaxial surge protector product is commonly used for radio and antenna installations where part or all system equipment is outdoors to protect sensitive equipment and is designed to pass 125 MHz to 1 GHz while suppressing DC surge.

    Military, government (FEMA and NCA), protection of emergency radio equipment. UL497B listed gas tube, ultra-fast response, and low let through energy. Covers the frequency range of 125 - 1000 MHz. 

    Surge Protector Type: Gas Discharge Tube

    Frequency: 0.2-1GHz

    Connector: Equipment Side = Type N Female, Antenna Side = N Female 

    Impedance: 50 Ohm

    125 - 220 MHz @ 200W

    220 - 700 MHz @ 100W

    700 MHz - 1GMHz @ 50 W

    DC-Blocked

    Operating Temperature: -50 C to 50 C

    Throughput Energy: 250 uJ

    This series is capable of 50,000A IEC 1000-4-4 8/20uS waveform surges.

    The turn-on voltage is 250V.

    Length: 2.72" (69.09mm)

    NEW w/Spec.

    Approvals: CE Compliant, RoHS Compliant

    Applications: HF, UHF, VHF Radios, Ham Radio Protection.

    Note: Unit must be properly grounded to low impedance (R&L) ground.

    Learn More
  3. BIRD - 8305-200-N - Coaxial attenuator, 20dB 15 watt.
    BIRD - 8305-200-N - Coaxial attenuator, 20dB 15 watt.
    $90.00
    Coaxial attenuator, 20dB 15 watt. "N" male to "N" female connectors. Dimensions: 0.995 (25.2mm) D x 4.311" (109.5mm) long. Learn More
  4. BIRD - 8304-100-N - Coaxial attenuator, 10dB 10 watt.
    BIRD - 8304-100-N - Coaxial attenuator, 10dB 10 watt.
    $90.00
    Coaxial attenuator, 10dB 10 watt (5 watt reverse). "N" to "N"connectors. Dimensions: 0.994" D x 3.267" long. Note: A 10dB broadband thruline attenuator (mono-directional) working from DC to 2GHz with +-0.4dB error and 2GHz-4GHz with +-0.8dB error. Continuous power rating is 10Watts (forward) de-rating to 5Watts (reverse). Total frequency range and vswr: 1:1.25, DC-4GHz. Connectors: �N�(m) input, �N�(f) output. Size: 83mm (L) x 25mm dia. Weight: 70gm. Learn More
  5. BIRD - 8303-300-N - Coaxial Attenuator, 30dB 5 watt.
    BIRD - 8303-300-N - Coaxial Attenuator, 30dB 5 watt.
    Special Price $89.98 Regular Price $120.00

    BIRD - 8303-300-N - Coaxial Attenuator

    Status: Discontinyed

    30dB Attenuator Rated at 5 watt.

    "N" Male to "N" Femal connectors.

    Dimensions: 0.789" D x 3.27" Long.

    NSN 5985-01-302-4577

    Genuine Bird - New Old Stock - Rare

    Made in USA

    Learn More
  6. BIRD - 8308-100-N - Coaxial Attenuator, 10dB 75 watt.
    BIRD - 8308-100-N - Coaxial Attenuator, 10dB 75 watt.
    Special Price $98.98 Regular Price $118.50

    BIRD - 8308-100-N Coaxial Atenuator

    Description: Attenuator,fixed

    Application Design: Transmission line

    Body Material: Metal

    Body Surface Treatment: Anodized

    Overall Diameter: 2.000 inches

    Operating Tempurature Range: -55.0/+70.0 degrees celsius

    Voltage Standing Wave Ratio:1.25

    Input Impedance Rating In Ohms: 50.0

    Output Impedance Rating In Ohms: 50.0

    Coaxial Connector Series Designation: N

    Power Rating: 75.0 watts average

    Rf Signal Attenuation In Decibels: 10.0

    Attenuation Accuracy In Decibels: -0.60/+0.60

    Connection Type Per Function: Female output and male input

    Unpackaged Unit Weight: 15.000 ounces

    Terminal Type And Quantity: 2 connector

    Frequency Range: 2.000 gigahertz

    10dB 75 watt.

    "N" to "N"connectors.

    Dimensions: 2" D x 6" long, plus contacts overall 8-1/8" long.

    New - NSN 5985-01-425-8827

    Note: Bird Liquid-dielectric attenuators have never been manufactured with Poly Chlorinated Biphenyls (PCBs)  

    Learn More
  7. ANZAC - SW-204 - RF AMP MODULE 6-pin Flatpack
    ANZAC - SW-204 - RF AMP MODULE 6-pin Flatpack
    Special Price $119.95 Regular Price $145.97
    RF AMP MODULE 6-pin hermetically sealed flatpack - Military Learn More
  8. Philips - BGD902 - 3MHz~1000MHz 19dB 2.2W Linear RF Power Amp
    Philips - BGD902 - 3MHz~1000MHz 19dB 2.2W Linear RF Power Amp
    Special Price $95.99 Regular Price $125.00
    2 Watt RF Power .The module has 19db gain flat from 3 to over 900MHz. Total power consumption : 24V * 0.45A = 10.8Watt -WITH SPEC SHEETAssuming 20% Class A efficiency there is 2.2 Watt harmonics free RF Power! The module was removed from working commercial equipment . The module must be mounted on heatsink . 24V power supply must be rated 0.5A or better. Learn More
  9. NARDA - 3043-20 - Coaxial directional coupler 20 Db.
    NARDA - 3043-20 - Coaxial directional coupler 20 Db.
    $150.00
    Coaxial directional coupler 20 Db, 2-4 GHZ. Used. Learn More
  10. Motorola - MHW709-3 - RF Amplifier Module New
    Motorola - MHW709-3 - RF Amplifier Module New
    Special Price $95.99 Regular Price $125.00
    UHF FM power amplifier module 7.5 watts 470-512 MHz @ 12.5 volts dc. Learn More
  11. Motorola - CA4915 - IC, RF. Linear W29196-ideband-UHF-VHF amplifier.
    Motorola - CA4915 - IC, RF. Linear W29196-ideband-UHF-VHF amplifier.
    Special Price $109.98 Regular Price $129.95

    Motorola - CA4915 - IC, RF.

    Linear Wideband-UHF-VHF Amplifier.

    Upper 3dB Frequency (Hz)=1.2G

    Lower 3dB Frequency (Hz)=10M

    Volt Gain Min=16

    Noise Figure Max. (dB)=9.0

    Nom. Supp (V)=15.

    Package: RFMOD flange module 9 pin, Gold Leads.

    New Old Stock - Rare

    Learn More
  12. Hewlett Packard - WR-90  X810B - Waveguide Slottted Sections.
    Hewlett Packard - WR-90 X810B - Waveguide Slottted Sections.
    Special Price $89.98 Regular Price $125.00

    Hewlett Packard - WR-90 X810B

    Coupling: 3dB

    Band: X

    Waveguide SLOTTED SECTIONS

    Frequency Range: 8.20 - 12.40 HZ.

    Waveguide I.D.: 0.900" +/- 0.0002 X 0.375" +/- 0.001"

    Fits Waveguide Siaze:1" X 1/2" EIA WR90

    Length: 10"

    Equivalent Flamge: UG-135/U

    WG Equivalent: WG16

     

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  13. Bird - TX RX Systems - 11-70-01 460 - UHF Bandpass Cavity Filter, 450-470 MHz. 50 Ω Impedance,  Was Formerly Tuned 462.2375 MHz.
    Bird - TX RX Systems - 11-70-01 460 - UHF Bandpass Cavity Filter, 450-470 MHz. 50 Ω Impedance, Was Formerly Tuned 462.2375 MHz.
    Special Price $129.98 Regular Price $165.00
    READY TO SHIP - ONLY 2 LEFT IN STOCK!

    Bird - TX RX Systems - 11-70-01 460 - UHF Bandpass Cavity Filter, 450-470 MHz.

    20-70-01, 450-470 MHz, Series-Notch Cavity Filter passes a relatively wide band of frequencies while rejecting a very narrow band of frequencies. It is equivalent to a series-tuned circuit. Notch depth is variable from 15-25 dB. Pass and notch frequencies must be known so that the optimum loop assembly can be used. This is the best filter for very close separations (200-400 KHz) in UHF applications. TX RX bandpass cavities has an adjustable selectivity characteristics (rotatable loops) to allow a trade-off between insertion loss (0.5-3.0 dB) and selectivity. Maximum power handling is typically determined by insertion loss setting. May be cascaded to achieve an arithmetic sum of individual filter attenuation. 

    • Various Low-Loss High-Rejection Models to choose from.
    • All Loop Plate/connector assemblies are silver-or Alballoy®-plated for low IM.
    • Welded cavity construction and silver-plated tunable probe and loops give superior pass and reject characteristics.

    Frequency Range: 450-470 MHz - May requires of requiring minor 462.2375 MHz retuning

    Max Power per Cavity: 270 W, per cavity @ 0.5 dB IL

    IL: 2.5 dB 

    Impedance: 50 Ω (ohms)

    VSWR: 1.25:1 max.

    Connectors: SMA (Std), Type-N, 7/16 DIN

    Temperature Range: -30 to +60 °C

    Dimensions: Overall Height 11" X 4" Diameter, 9" Canister Portion Height 

    Instruction Manual: https://txrx.com/wp-content/uploads/2018/11/7-9145-manual-02222017.pdf

    Note: As Removed from Equipment - Used 

    Learn More
  14. Bird - TX RX Systems - 11-70-01 460 - UHF Bandpass Cavity Filter, 450-470 MHz. 50 Ω Impedance,  Tuned 462.2375 MHz.
    Bird - TX RX Systems - 11-70-01 460 - UHF Bandpass Cavity Filter, 450-470 MHz. 50 Ω Impedance, Tuned 462.2375 MHz.
    Special Price $129.98 Regular Price $165.00

    Bird - TX RX Systems - 11-70-01 460 - UHF Bandpass Cavity Filter, 450-470 MHz.

    20-70-01, 450-470 MHz, Series-Notch Cavity Filter passes a relatively wide band of frequencies while rejecting a very narrow band of frequencies. It is equivalent to a series-tuned circuit. Notch depth is variable from 15-25 dB. Pass and notch frequencies must be known so that the optimum loop assembly can be used. This is the best filter for very close separations (200-400 KHz) in UHF applications. TX RX bandpass cavities has an adjustable selectivity characteristics (rotatable loops) to allow a trade-off between insertion loss (0.5-3.0 dB) and selectivity. Maximum power handling is typically determined by insertion loss setting. May be cascaded to achieve an arithmetic sum of individual filter attenuation. 

    • Various Low-Loss High-Rejection Models to choose from.
    • All Loop Plate/connector assemblies are silver-or Alballoy®-plated for low IM.
    • Welded cavity construction and silver-plated tunable probe and loops give superior pass and reject characteristics.

    Frequency Range: 450-470 MHz - Currently Calibrated @ 462.2375 MHz

    Max Power per Cavity: 270 W, per cavity @ 0.5 dB IL

    IL: 2.5 dB 

    Impedance: 50 Ω (ohms)

    VSWR: 1.25:1 max.

    Connectors: SMA (Std), Type-N, 7/16 DIN

    Temperature Range: -30 to +60 °C

    Dimensions: Overall Height 11" X 4" Diameter, 9" Canister Portion Height 

    Instruction Manual: https://txrx.com/wp-content/uploads/2018/11/7-9145-manual-02222017.pdf

    Note: As Removed from Equipment - Used 

    Learn More
  15. Bird - TX RX Systems - 11-70-01 460 - UHF Bandpass Cavity Filter, 450-470 MHz. 50 Ω Impedance,  Tuned 462.3875 MHz.
    Bird - TX RX Systems - 11-70-01 460 - UHF Bandpass Cavity Filter, 450-470 MHz. 50 Ω Impedance, Tuned 462.3875 MHz.
    Special Price $129.98 Regular Price $165.00
    READY TO SHIP - ONLY 1 LEFT IN STOCK!

    Bird - TX RX Systems - 11-70-01 460 - UHF Bandpass Cavity Filter, 450-470 MHz.

    20-70-01, 450-470 MHz, Series-Notch Cavity Filter passes a relatively wide band of frequencies while rejecting a very narrow band of frequencies. It is equivalent to a series-tuned circuit. Notch depth is variable from 15-25 dB. Pass and notch frequencies must be known so that the optimum loop assembly can be used. This is the best filter for very close separations (200-400 KHz) in UHF applications. TX RX bandpass cavities has an adjustable selectivity characteristics (rotatable loops) to allow a trade-off between insertion loss (0.5-3.0 dB) and selectivity. Maximum power handling is typically determined by insertion loss setting. May be cascaded to achieve an arithmetic sum of individual filter attenuation. 

    • Various Low-Loss High-Rejection Models to choose from.
    • All Loop Plate/connector assemblies are silver-or Alballoy®-plated for low IM.
    • Welded cavity construction and silver-plated tunable probe and loops give superior pass and reject characteristics.

    Frequency Range: 450-470 MHz - Currently Calibrated @ 462.3875 MHz

    Max Power per Cavity: 270 W, per cavity @ 0.5 dB IL

    IL: 2.5 dB 

    Impedance: 50 Ω (ohms)

    VSWR: 1.25:1 max.

    Connectors: SMA (Std), Type-N, 7/16 DIN

    Temperature Range: -30 to +60 °C

    Dimensions: Overall Height 11" X 4" Diameter, 9" Canister Portion Height 

    Instruction Manual: https://txrx.com/wp-content/uploads/2018/11/7-9145-manual-02222017.pdf

    Note: As Removed from Equipment - Used 

    Learn More
  16. Bird - TX RX Systems - 11-70-01 460 - UHF Bandpass Cavity Filter, 450-470 MHz. 50 Ω Impedance,  Tuned 462.3125 MHz.
    Bird - TX RX Systems - 11-70-01 460 - UHF Bandpass Cavity Filter, 450-470 MHz. 50 Ω Impedance, Tuned 462.3125 MHz.
    Special Price $129.98 Regular Price $165.00

    Bird - TX RX Systems - 11-70-01 460 - UHF Bandpass Cavity Filter, 450-470 MHz.

    20-70-01, 450-470 MHz, Series-Notch Cavity Filter passes a relatively wide band of frequencies while rejecting a very narrow band of frequencies. It is equivalent to a series-tuned circuit. Notch depth is variable from 15-25 dB. Pass and notch frequencies must be known so that the optimum loop assembly can be used. This is the best filter for very close separations (200-400 KHz) in UHF applications. TX RX bandpass cavities has an adjustable selectivity characteristics (rotatable loops) to allow a trade-off between insertion loss (0.5-3.0 dB) and selectivity. Maximum power handling is typically determined by insertion loss setting. May be cascaded to achieve an arithmetic sum of individual filter attenuation. 

    • Various Low-Loss High-Rejection Models to choose from.
    • All Loop Plate/connector assemblies are silver-or Alballoy®-plated for low IM.
    • Welded cavity construction and silver-plated tunable probe and loops give superior pass and reject characteristics.

    Frequency Range: 450-470 MHz - Currently Calibrated @ 462.3125 MHz

    Max Power per Cavity: 270 W, per cavity @ 0.5 dB IL

    IL: 2.5 dB 

    Impedance: 50 Ω (ohms)

    VSWR: 1.25:1 max.

    Connectors: SMA (Std), Type-N, 7/16 DIN

    Temperature Range: -30 to +60 °C

    Dimensions: Overall Height 11" X 4" Diameter, 9" Canister Portion Height 

    Instruction Manual: https://txrx.com/wp-content/uploads/2018/11/7-9145-manual-02222017.pdf

    Note: As Removed from Equipment - Used 

    Learn More
  17. Bird - TX RX Systems - 11-70-01 460 - UHF Bandpass Cavity Filter, 450-470 MHz. 50 Ω Impedance. Tuned 462.4125 MHz
    Bird - TX RX Systems - 11-70-01 460 - UHF Bandpass Cavity Filter, 450-470 MHz. 50 Ω Impedance. Tuned 462.4125 MHz
    Special Price $129.98 Regular Price $165.00

    Bird - TX RX Systems - 11-70-01 460 - UHF Bandpass Cavity Filter, 450-470 MHz.

    20-70-01, 450-470 MHz, Series-Notch Cavity Filter passes a relatively wide band of frequencies while rejecting a very narrow band of frequencies. It is equivalent to a series-tuned circuit. Notch depth is variable from 15-25 dB. Pass and notch frequencies must be known so that the optimum loop assembly can be used. This is the best filter for very close separations (200-400 KHz) in UHF applications. TX RX bandpass cavities has an adjustable selectivity characteristics (rotatable loops) to allow a trade-off between insertion loss (0.5-3.0 dB) and selectivity. Maximum power handling is typically determined by insertion loss setting. May be cascaded to achieve an arithmetic sum of individual filter attenuation. 

    • Various Low-Loss High-Rejection Models to choose from.
    • All Loop Plate/connector assemblies are silver-or Alballoy®-plated for low IM.
    • Welded cavity construction and silver-plated tunable probe and loops give superior pass and reject characteristics.

    Frequency Range: 450-470 MHz - Currently Calibrated @ 462.412 MHz

    Max Power per Cavity: 270 W, per cavity @ 0.5 dB IL

    IL: 2.5 dB 

    Impedance: 50 Ω (ohms)

    VSWR: 1.25:1 max.

    Connectors: SMA (Std), Type-N, 7/16 DIN

    Temperature Range: -30 to +60 °C

    Dimensions: Overall Height 11" X 4" Diameter, 9" Canister Portion Height 

    Instruction Manual: https://txrx.com/wp-content/uploads/2018/11/7-9145-manual-02222017.pdf

    Note: As Removed from Equipment - Used 

    Learn More
  18. ST - SD1542-H2 - RF POWER TRANSISTORS
    ST - SD1542-H2 - RF POWER TRANSISTORS
    $99.00
    RF TRANSISTOR POWER TinnedLeads-for customer convenience Or used- you decide Learn More
  19. SIEMENS - CGY40 - GAAS MMIC 100 MHZ TO 3 GHZ.
    SIEMENS - CGY40 - GAAS MMIC 100 MHZ TO 3 GHZ.
    $135.00
    GAAS MMIC (Single-stage monolithic microwave ic mmic amplifier application range:100 MHZ TO 3 GHZ... Learn More
  20. General Instruments - 473418-001 - 10MHz~1GHz 18.5dB 2.2Watt Linear RF Power Amp
    General Instruments - 473418-001 - 10MHz~1GHz 18.5dB 2.2Watt Linear RF Power Amp
    Special Price $109.99 Regular Price $133.00
    10MHz~1GHz 18.5dB 2.2Watt Linear RF Power Amp - WITH SPEC SHEET Learn More
  21. EIMAC - 4-125A - RMA 4D21 Electron Tube. Radial Beam Power Tetrode.
    EIMAC - 4-125A - RMA 4D21 Electron Tube. Radial Beam Power Tetrode.
    Special Price $98.50 Regular Price $149.98
    READY TO SHIP - ONLY 45 LEFT IN STOCK!

    Modulator Oscillator Amplifier Tube. Radial beam power tetrode. Filament: Thoriated Tungsten. Voltage: 5V. Current: 6.5Amp. Application: For use as an amplifier, oscillator, or modulator. Maximum plate-dissipation 125 Watt. Maximum plate-voltage 3000V (3KV) at frequencies up to 120 Mc. Base: 5 pin metal shell. Dimensions: 2.75" D x 5.69" long. Note: ALT P/N: RMA 4D21. Made in the USA. New In Mfg. Box.

    Additional information at http://tubecollectors.org/eimac/archives/4125a(47).pdf

     

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  22. CRANE POLYFLON - RP-VC18-22 - Capacitor. 0.8-18pF 1KV. Adjustable HV/RF Capacitor.
    CRANE POLYFLON - RP-VC18-22 - Capacitor. 0.8-18pF 1KV. Adjustable HV/RF Capacitor.
    Special Price $89.98 Regular Price $149.00

    CRANE POLYFLON - RP-VC18-22 - Capacitor.

    HV/RF Capacitor - Non-Magnetic. High Voltage. High Power. High "a" Screwdriver Adjust Rotating Piston Series

    PTFE anode and mount surfaces are metalized with electrodeposited copper. Polyflon's proprietary plating process eliminates the possibility of air being trapped between the PTFE and copper interface which could break down under voltage stress.

    The invention relates to variable capacitors suitable for high frequency, high voltage, low loss applications. The capacitor is formed of at least two sections or elements which are relatively movable to achieve selective capacitance variation. The capacitor sections or elements each comprise a metallic layer, serving as an electrode, secured to a layer of dielectric material with the layers of dielectric material being of generally equal thickness and in contiguous slidable contact to form the variable capacitor.

    Capacitance: 0.8-18pF

    Voltage: 1KV, Peak test volts: 2KV.

    Current: 1.7Amp.

    Adjustable.

    Housing: Teflon (PTFE) and Silver Plated.

    Dimensions: 0.421" D x 1.436" high.

    Hi Voltage.

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  23. GENERAL RADIO CO - Type 247 - Capacitor/ Condenser,  Air Variable.
    GENERAL RADIO CO - Type 247 - Capacitor/ Condenser, Air Variable.
    Special Price $128.98 Regular Price $165.00
    READY TO SHIP - ONLY 1 LEFT IN STOCK!

    GENERAL RADIO CO - Type 247 - Capacitor / Condenser.

    Gear Vernier Air Variable Condenser. 500MMF.

    Dimensions: Triangle shape 3-1/2".

    With knob and attached gear 3-1/16" D on bottom.

    General Radio / Vintage.

    New Old Stock - Very Rare - 1920's Vintage

    Made in USA

    Learn More
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