[ARC5] SCR-183 Cheap TUbes

David Stinson arc5 at ix.netcom.com
Sun Apr 7 01:09:53 EDT 2019


Excellent and correct advice.  Thank you , Neil!

 

From: AKLDGUY
Subject: Re: SCR-183 Cheap TUbes

 

Neutralization is a critical factor in getting these transmitters going…

 

The capacitor will probably still be appropriately set for the original VT-25 tube, but if you change the tubes to something like 6AQ5s or 5763s or similar, it is essential that you re-neutralize the PA. Bad FM, instability and lousy AM modulation will result from an incorrect setting.. 

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