[Heath] [Heathkit] SB-100 TX audio gain question

[RAY FRIESS]

You might check your microphone.   You could have a bad microphone element ... or you could be using the wrong kind of
microphone with it.   There are different types of microphone elements.  The older tube rigs sometimes don't like the new
types of microphone elements.


> Date: Sun, 27 Dec 2015 15:02:23 -0500
> From: ac1wye at gmail.com
> To: heath at puck.nether.net
> Subject: [Heathkit] SB-100 TX audio gain question
> CC: heathkit at mailman.qth.net
> 
> Hi, Folks!
> 
> My SB-100 is working fine, with one little exception: to have any TX audio
> out, I need to have the MIC/CW Level set virtually max. Checked the output
> waveform on my SB-610 scope, and it appears clean. The tubes in the mic
> audio chain are good, so I'm not certain what may be up. Seems as if the
> level should be optimal around 50% or a little greater, but not maxed out.
> 
> Anyone have a suggestion where I might start looking?
> 
> ​73,​
> 
> 
> ​Sandy AC1Y​
> 
> 
> Alexander N. Gerli, Sr.
> 548 Allred Mill Road
> Mount Airy, NC 27030-2202
> 
> Scotsmen walk about 900 miles each year.
> A Scotsman drinks around 45 gallons of Whisky a year.
> Scotsmen get about 20 Miles Per Gallon.
> ______________________________________________________________
> Heathkit mailing list
> Home: http://mailman.qth.net/mailman/listinfo/heathkit
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Heathkit at mailman.qth.net
> 
> List Administrator: Duane Fischer, W8DBF
> ** For Assistance: dfischer at usol.com **
> 
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
 		 	   		  
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://puck.nether.net/pipermail/heath/attachments/20151227/968f6f07/attachment-0001.html>