Transistor Radio AM FM Tuner (CPA204)

R40.16  R40.16
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Suitable as the main tuning capacitor for most transistor AM/FM radio circuits.
Contains separate oscillator and antenna sections for AM and for FM.
Separate 5pF (min) trimmer for each of the 4 sections.
Looking at back side with leads at the top, lower right trimmer is for FM oscillator section, lower left trimmer is for FM antenna section, upper right trimmer is for AM oscillator section and upper left trimmer is for AM antenna section. Top left lead is AM oscillator section, top right lead is AM antenna section, lower left connection is FM oscillator section and lower right connection is FM antenna section. Other pins are common ground.

Overall size 21 x 21 x 15.75mm including 4mm long shaft. Shaft is tapped down the centre with M2.5 thread for a depth of 2mm.
Fixing holes on front face are M2.5 threaded for a depth of 3mm. Ensure any screw does not go deeper or it may foul the vanes. Holes are on 13.75mm centres.
Rotate counter-clockwise to increase capacitance.

Max working voltage: 50V peak
Rotation angle: 180°
AM sections: 5pF to 126pF
FM sections: 4.5pF to 20pF
Oscillator section: 4.5pF to 59.2pF
Q for AM sections: > 500 at 50pF, 10MHz
Q for FM sections: > 150 at 10pF, 100MHz

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  • Model: CPA204
  • 813 Units in Stock at BELLVILLE MAIN STORE
    10 Units in Stock at BELLVILLE SHOP
    28 Units in Stock at PLUMSTEAD SHOP

This product was added to our catalogue on Tuesday 12 September, 2006.

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