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General : grounded base preamplifier  
     
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 Message 1 of 8 in Discussion 
From: MSN NicknameUseableTvengineer  (Original Message)Sent: 4/14/2007 11:46 AM
A while back i came across a circuit which used 1 transistor in grounded base mode used as a crystal mike preamplifier which worked very well but now have lost the schematic.........it was one of the PE TAKE20 schematics
regards mike
 


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The number of members that recommended this message. 0 recommendations  Message 2 of 8 in Discussion 
Sent: 4/14/2007 8:09 PM
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 Message 3 of 8 in Discussion 
From: MSN NicknameUseableTvengineerSent: 5/7/2007 11:11 AM
hi ken-the article can be found in the march 1973 issue of Everyday Electronics not PE as i thought which i now longer seem to have-but that preamp(is it for an xtal mike?)
 I built the E.E circuit and it worked really well,if you find it could you send it to me via my email?
regards mike
ps. send me the other 1 too
thanks

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The number of members that recommended this message. 0 recommendations  Message 4 of 8 in Discussion 
Sent: 5/7/2007 11:30 PM
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 Message 5 of 8 in Discussion 
From: MSN NicknameUseableTvengineerSent: 5/9/2007 11:54 AM
hi ken.........the info u sent i cant open it...............regards mike
 

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The number of members that recommended this message. 0 recommendations  Message 6 of 8 in Discussion 
Sent: 5/9/2007 12:23 PM
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 Message 7 of 8 in Discussion 
From: MSN NicknameUseableTvengineerSent: 5/10/2007 10:40 AM
thats strange then because jpeg files are usually ok unless its the way hotmail handle the file-but usually its no problem-have u found that issue of Everyday Electronics  with the preamp in-that will be a useful adition to my info dept. seeeming as i lost it.......
regards mike
 

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The number of members that recommended this message. 0 recommendations  Message 8 of 8 in Discussion 
Sent: 5/10/2007 1:09 PM
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