View Single Post
  #3   Report Post  
Old March 8th 07, 12:05 AM posted to rec.radio.amateur.equipment
DaveM DaveM is offline
external usenet poster
 
First recorded activity by RadioBanter: Nov 2006
Posts: 44
Default GE Super Radio followup

"Mike S." wrote in message
...

In article ,
Paul Ciszek wrote:
I asked about "good" receivers for broadcast radio a while back, and
the GE Super Radio was highly recommended here and elsewhere. So, I
got one for Christmas and it does seem to be good at pulling in and
separating many stations. Thank you. However, there is one annoying
problem: The indicator on the dial is "offset" by some distance.
Since the printed frequency scale is non-linear, one can not simply
remember a simple rule like "Station plus 500 kHz". The manual that
came with the radio doesn't say anything, really; it's very short.

So, any ideas?


http://users.netonecom.net/~swordman...srIIIAlign.htm



Dial inaccuracy is usually caused by poor tracking of the oscillator. Is the
problem evident on both AM and FM? If so, both oscillators will have to be
adjusted.
To set the oscillators, locate a moderate strength station towards the low end
of the dial and then set the tuning dial to the setting that corresponds to the
frequency of the station. Then slowly tune the oscillator coil until the
station comes in strongly.
Do the same with a station near the high end of the dial, and adjust the
oscillator trimmer capacitor.
Repeat until the dial tracks accurately.
You might have to tweak the RF stages, but the IF should be OK without
adjustment. Adjust the coils on the low end, the trimmer caps on the high end.

If you're not handy with electronic equipment, it might be best if you let a
friend who is handy do it for you.

--
Dave M
MasonDG44 at comcast dot net (Just substitute the appropriate characters in the
address)

Life is like a roll of toilet paper; the closer to the end, the faster it goes.