Thanks Barry as I told Phil I can give it a try. I'll let you know.
de nf4r Dave
----- Original Message -----
From: "Barry N1EU" <barry.n1eu@gmail.com>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Monday, March 25, 2013 3:58:51 PM
Subject: Re: [TenTec] Need help with corsair ii
On Mon, Mar 25, 2013 at 7:21 PM, Jim Brown <k9yc@audiosystemsgroup.com>wrote:
> On 3/25/2013 10:04 AM, Wade Staggs wrote:
>
>> If I wire a Low Impedance Microphone to
>> my SB-101, HW-101, Swan MB-40, Ten Tec Corsair, Omni D or Drake TR4C the
>> Microphone gain must be run at a much higher level.
>>
>
> There's nothing wrong with increasing the gain to accommodate the low-Z
> mic as long as doing so doesn't add audible circuit noise. That's what I'm
> talking about with "available gain."
>
Right, and as Phil and I previously alluded to, the single opamp gain stage
of the Corsair II mic input uses 15K/10K resistors, for a whopping 3.5dB
available gain if my rusty circuit analysis is correct. That's why Phil
suggesting upping the 15K feedback resistor.
Barry N1EU
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