Re: RF CHOkes 560uh

From: Jamie (jamie_5_not_valid_after_5_Please_at_charter.net)
Date: 01/17/05 

Date: Mon, 17 Jan 2005 14:26:53 -0800

Boris Mohar wrote:

> On Tue, 18 Jan 2005 01:37:22 +1030, "spock" <ufp@optusnet.com.au> wrote:
>
>
>>Yes I am looking for a rf choke the size of a 1/4 watt resistor, to more
>>precise I looking for 9 chokes.
>>They used in series with a Darlington transistor collector and is driving a
>>reed switch. I need these to repair a control board for a PLL. I hope this
>>clears that up.
>
>
> Never seen that. What is the purpose of the choke? Do you have a flyback
> diode across the reed coil?
>
> --
>
> Boris Mohar
>
>
i have seen that before, a choke used in series to the coil of a reed
relay when passing R.F. through the contacts of the reed.
  the coil around the read is acting like a transformation effect of
EMF.

Relevant Pages

  • Re: Choke in the Negative Lead...Another view
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    (rec.audio.tubes)
  • Re: Choke in the Negative Lead...Another view
    ... That's a special case for people too cheap to buy a choke and who ... therefore use the loudspeaker field coil. ... further reducing the need for capacitance. ... was on field-coil speakers. ...
    (rec.audio.tubes)
  • Re: R.F. Choke Design
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    (rec.radio.amateur.homebrew)
  • Re: R.F. Choke Design
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  • Re: Antenna RF choke questions
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