[AMRadio] Kenwood MC-50 mike with AM gear


manualman at juno.com manualman at juno.com
Wed Jan 7 13:32:46 EST 2015


The Hi-Z on the MC-50 is 50K not 5K.
Pete, wa2cwa

On Wed, 07 Jan 2015 07:35:46 -0600 Geoff <ars.w5omr at gmail.com> writes:
> 
> After a fashion, I suppose...
> 
> The issue is, that the Low and High impedance choices on the MC-50 
> are
> 500 and 5000 ohms.
> Typical 6AU6/12AX7 input impedance is upwards of 500,000 to 1 
> Meg-ohm. 
> 
> Depending on how well stocked your junk box is, you may already have 
> the
> solution.
> 
> A 10:1 transformer (120/12v) can take the 5000 ohm impedance and 
> bump it
> up closer to what the older tube gear is looking for.
> 
> Gotta love Electronics... "The Exacting Science of approximation."
> 
> -73 = Best Regards,
> -Geoff/W5OMR



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