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MK 484 Radio - Tuning Capacitor Value?

Discussion in 'Electronic Basics' started by Dave.H, May 24, 2008.

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  1. Dave.H

    Dave.H Guest

    I found a website that has construction details for a radio using the
    MK 484 IC. The site doesn't seem to say what variable capacitor value
    to use, I happen to have a fairly new 365 pF unit lying around, that I
    could use. I would also want to know if any type of ferrite coil
    would work, or would it be better to wind my own?

    Thanks, Dave
    Australia
     
  2. Dave.H

    Dave.H Guest

    I want to tune the AM band 530 kHz too at least 1500 kHz. There's not
    too many AM stations in the high end of the band, (highest one is at
    1431 kHz, the one I usually listen to) so I'm not worried about the
    radio tuning any higher than 1500 kHz
     
  3. ian field

    ian field Guest

    Pinch the tuning cap and ferrite rod out of an old transistor radio.
     
  4. Dave.H

    Dave.H Guest

    I've got an old AM/FM radio I don't use any more, I might pinch the
    tuning cap and ferrite coil from that, and save the 365 pF cap for a
    tube regen I'm planning. I forgot to post the link where I found the
    schematic, http://bellsouthpwp2.net/w/u/wuggy/mk484.htm
     
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