Variable Capacitor

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  1. 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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  2. GENERAL RADIO CO - Type 374-N - Capacitor. Air variable.
    GENERAL RADIO CO - Type 374-N - Capacitor. Air variable.
    $100.00
    Capacitor. Air variable. Dual 18-180 pF sections that can be paralleled to 36-360 pF range. Balanced with gear. Dimensions: 3-3/4" x 3-3/4" x 5". Weight: 2 lbs. NIB. General Radio / Antique. Learn More
  3. C - TYPE C - Capacitor, Variable, 26-210pF, HV
    C - TYPE C - Capacitor, Variable, 26-210pF, HV
    $150.00
    READY TO SHIP - ONLY 1 LEFT IN STOCK!
    Capacitor, Variable, 26-210 pF, 2000V, 3/8" x 1-1/2" operating shaft, Insulated from mounted brackets. Overall size (excluding the shaft) 13-1/2" x 8" x 5-3/4". Learn More
  4. General Electric - 3D9004V-1 - Capacitor, variable. AIR. 7.5 to 20uF.
    General Electric - 3D9004V-1 - Capacitor, variable. AIR. 7.5 to 20uF.
    $65.00
    Capacitor, variable. AIR. 7.5 to 20uF 1750V rms 60 cycles test. NIB. Learn More
  5. E F JOHNSON CO - 169-20 - Capacitor, air variable. 150-50uuf, 0.125 Air gap.
    E F JOHNSON CO - 169-20 - Capacitor, air variable. 150-50uuf, 0.125 Air gap.
    $150.00
    READY TO SHIP - ONLY 1 LEFT IN STOCK!
    Capacitor, air variable. 150-50uuf 4500V, 0.125 Air gap. Maybe 3 capacitors in one unit. Mount: Panel, horizontal. Dimensions: overall 17-1/4" long x 4-1/4" wide x 4-1/4" high. Note: Alt P/N: 20042104. Made in the USA. Extremely well made. New older stock. Learn More
  6. 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

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  7. GENERAL RADIO CO - Type 247 - Capacitor. Air variable.
    GENERAL RADIO CO - Type 247 - Capacitor. 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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