[Elecraft] A question about low sensitivity

[Robert McGwier]

Been there, done that.  After you swap it (should you find it is 
backwards),  protect your ears by turning down the audio first.  ;-).


HNY to all!
Bob
N4HY

Don Brown wrote:

>Hi
>
>Double check T7. Make sure the green winding is in 1 and 2 and the red 
>winding is in 3 and 4 closest to the IC U12. If it is backwards the 
>sensitivity will be low, the audio will be low and the AGC will not work 
>properly although everything else will appear OK.
>
>Don Brown
>
>KD5NDB
>
>
>----- Original Message ----- 
>From: "Joseph Reed" <jereed at ameritech.net>
>To: <elecraft at mailman.qth.net>
>Sent: Wednesday, December 28, 2005 8:35 AM
>Subject: [Elecraft] A question about low sensitivity
>
>
>  
>
>>Hi guys,
>>
>>  Been a while since I last kept up with the list.  You were a great 
>>source of help back when I built K2 #1133.  Now I have #5226 and have 
>>completed the second section of construction.  The receiver works, I can 
>>hear stations on 40.  Yesterday I listed to Mid-Cars, Southcars, and 
>>Eastcars.  But they were only moderatly loud and I had AF gain full out. 
>>On the IC-756 Pro they were booming.
>>
>>  On the radio I thought the AGC voltage might have been too high.  3.80 
>>volts on the nose.  T-34 tunes very well, as do L-1 and L-2.  Every other 
>>test and alignment to this point was well within specs.  Any ideas as to 
>>why it is not hearing well?  Or should I not be concerned at this stage of 
>>construction and press on to stage 3.
>>
>>
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>>    
>>
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>  
>


-- 
AMSAT VP Engineering. Member: ARRL, AMSAT-DL, TAPR, Packrats,
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