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replacing rare electronic components

Discussion in 'General Electronics Discussion' started by ramy, Nov 6, 2013.

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  1. ramy

    ramy

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    Nov 4, 2013
  2. ramy

    ramy

    7
    0
    Nov 4, 2013
    and also the BC157 transistor
     
  3. Harald Kapp

    Harald Kapp Moderator Moderator

    10,228
    2,204
    Nov 17, 2011
    Try BC557 for the BC157.
    10µF and 0.4µF are standard values. Any electronics distributor will sell you that. Instead of 0.4µF you can search for 400nF, that is the same capacitor.

    BTW, do you mean 0.04µF as required by the second schematic? That would be 40nF. You can use 2*22nF in parallel instead without much of a difference to the circuit.
     
    Last edited: Nov 6, 2013
  4. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    Jan 21, 2010
    Well, 0.047 is...

    Even closer than two 0.022uF in parallel would be two 0.082uF in series.

    Is it critical? (edit: probably not)
     
  5. brevor

    brevor

    87
    16
    Apr 9, 2013
    .039 uF is a close standard value.
     
  6. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    Jan 21, 2010
    It is not unusual to find that E-6 values for capacitors are easier to obtain than the E-12 series.

    Having said that, both 0.039 and 0.082 are in the E-12 and not the E-6 series.
     
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