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Re: AGC performance

Jack Purdum
 

I've missed Ashhar's circuit. Where is it?

Jack, W8TEE


From: "pierre@..." <pierre@...>
To: [email protected]
Sent: Sunday, February 26, 2017 6:30 PM
Subject: Re: [BITX20] AGC performance

Dear All,

I may have missed this information in the flow of Bitx posts:

Has anyone compared the performance of Asshar's AGC circuit against that
of Peter's (VK3YE) AGC circuit using the LED + LDR.

If so, how did they compare ??

Best regards,

Peter VK1XP




On 27-02-2017 10:05, Allard PE1NWL wrote:
> I followed KV4QB?s advice and put a 10uF between 1 and 8 on the LM386.
> It got the audio up again. The AGC is somewhat working, but strong
> signals are still quite loud.
> Any ideas how this could be improved?
> I also noticed there is now an extra 10K resistor (in series with the
> diode) in the updated schematic, it?s not present in Asshar?s original
> design.
> Why has this been added?
>
> 73, Allard PE1NWL
>
>





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