[NJARC] "Selective" shadow meter...

sgt88 at atlanticbb.net sgt88 at atlanticbb.net
Fri Jul 12 15:55:36 EDT 2013


Thanks to Mr. Amici for pointing out my ( grevious ) 'undersight'...not 
checking the tube voltages...

I didn't think I had to do it as the radio is - basically - working....I was 
100% WRONG!

Right off...No cathode voltage on the RF tube!!...and...found there NO 
cathode resistor/capacitor!!!!..pin was grounded...

Short story...the previous novice must not have had a schematic...wrong 
wiring AND missing vital components....

Set is starting to work better...more shadows...better signals...need to 
make up a non-metallic hexagonal nut turning for peaking those cans...

Amazing!!! how the radio 'worked' with all that SNAFU...

Thanks all - again,
Steve T.


On Fri, 12 Jul 2013 12:43:45 -0700 (PDT)
  Pete O <stateasylum at yahoo.com> wrote:
>   The shadow meter should indicate something for most of the stations on the broadcast band; whatever action you get on the SW bands is gravy.
>
>   It sounds like you've got some alignment to do in your antennna and IF stages or your antenna is way too short (or disconnected).
>
>   Pete O
>
>
>   ________________________________
>   From: "sgt88 at atlanticbb.net" <sgt88 at atlanticbb.net>
>   To: njarc at mailman.qth.net
>   Sent: Friday, July 12, 2013 7:31 AM
>   Subject: [NJARC] "Selective" shadow meter...
>
>
>   Just remember
>   Reply = Poster
>   Reply All = Everyone
>
>   _________________________________________________________
>   ...in my Philco 116X...it works fine on two local AM stations...only...got
>   weak stations across the AM band...but would not expect much movement on
>   them.
>
>   I get no 'satisfaction'...shadow movement...anyplace else = shortwave
>   stations.
>
>   Everything I've read has to do with trouble-shooting a non-working
>   unit...not one that is 'selective' like this one.
>
>   Suggestions welcome,
>   Steve T.
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