[HBR] help on local oscillator

[Ron Barlow]

Hi Bill,
 Add excessive feedback as a possibility.
                 73 & GL de Ron  n4gjv  

--- On Sun, 10/25/09, wmurray348 at aol.com <wmurray348 at aol.com> wrote:

> From: wmurray348 at aol.com <wmurray348 at aol.com>
> Subject: [HBR] help on local oscillator
> To: hbr at mailman.qth.net
> Date: Sunday, October 25, 2009, 6:18 AM
> 
> Hi: All enjoy hearing about everyone's projects. Working on
> a homebrew superhet, building it backward from audio
> stage/audio preamp/plate detector/bfo  so I can test
> functionality as each stage is completed . I am now on local
> oscillator, trying to use a glass envelope 6j5 for  the
> schematic in the 1965 ARRL handbook(page 97, diagram 5-14 c.
> I seem to be getting a really raspy l.o. signal. Think my
> power supply is reasonably clean, wonder if anyone has some
> pointers for me. Could it be ac from the filaments causing
> the problem? I'm new to attempting receivers, interested in
> anyones suggestions to correct this so I can proceeed to IF
> and mixer stages. 73 Bill W9VC 
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