[Elecraft] Re: K3 AGC Adjustment Parameters
Julian G4ILO
julian.g4ilo at gmail.com
Fri Oct 12 09:34:33 EDT 2007
Since the K3 AM roofing filter is 6KHz, I guess it won't be so hi-fi.
It isn't tubes vs transistors, so much as IF coils vs crystal filters.
Brings back memories of when I was a kid, when I used to listen to AM
radio using a home made crystal set with an OA91 diode, tuned by a
permeability tuned core. With selectivity that broad, fed into a
transistor amplifier, the quality was great although I could hear the
9KHz heterodynes from the stations either side.
This topic might be better carried on in the Lounge over at Zerobeat
Forums (see link in sig.)
--
Julian, G4ILO K2 s/n: 392 K3 s/n: ???
G4ILO's Shack: www.g4ilo.com
Zerobeat Ham Forums: www.zerobeat.net/smf
On 10/12/07, Brett gazdzinski <brett.gazdzinski at verizonbusiness.com> wrote:
>
>
> Older receivers do really well with fidelity, almost anything
> tube based can get to 20 Hz at the detector, I have not found
> any modern ham gear that went much below 200 Hz.
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