[ARC5] C-30 missing...

[D C _Mac_ Macdonald]

NDB (non-directional beacon) MW is named 
Pelly NDB and is at Moses Lake, WA. 
 
Info at: http://www.pilotnav.com/navaid/faa-2547
  
* * * * * * * * * * * 
* 73 - Mac, K2GKK/5 * 
* (Since 30 Nov 53) * 
* k2gkk at hotmail.com * 
* Oklahoma City, OK * 
* USAF & FAA (Ret.) * 
* * * * * * * * * * * 
 
 
 

> From: kgordon2006 at frontier.com
> To: Arc5 at mailman.qth.net
> Date: Mon, 29 Oct 2012 15:38:45 -0700
> Subject: [ARC5] C-30 missing...
> 
> I am curious: in the previously-hacked BC-453B I am presently working on, 
> C-30, the 15 mfd 35 VDC cathode-bypass capacitor for the 12A6 audio 
> output tube is missing. Apparently the original hacker removed it but never 
> put it back.
> 
> Even so, the audio output from this receiver is very loud. Plenty loud enough 
> for a loudspeaker. I am using a 600 ohm to 8 ohm transformer feeding a 
> Radio Shack small 4" square CB speaker. If I turn the RF gain all the way up, 
> it will literally drive me out of the shack.
> 
> So, is that capacitor really needed?
> 
> I thought that if one removed that capacitor, some negative feedback would 
> result, and the audio distortion would be reduced, but that the volume would 
> be reduced also.
> 
> FYI, the B+ is 240 VDC under load.
> 
> I am copying an NDB, call is MW, here even in the daytime.
> 
> Ken W7EKB