AM Tuner - Old vs. New

 

Bronze Member
Username: Dscrobe

Reading, PA USA

Post Number: 58
Registered: Dec-05
I fixed up a tube radio from Zenith. Replaced/checked all tubes. I was amazed at all the AM stations I was picking up at night. I understand that reception is better and that some stations wait to come on till night. But, I could only pick up 1 to 3 stations on my more modern receiver.
 

Gold Member
Username: Nuck

Post Number: 8900
Registered: Dec-04
Daniel, be sure your receiver wasn't only looking for am stereo stations!

Good 'ol stuff ya fixed up there.
 

Bronze Member
Username: Dscrobe

Reading, PA USA

Post Number: 59
Registered: Dec-05
Yeah, it has FM and FMC. The FMC works better than the FM selection. It seems to lock in on a station, once you tune near it. You could move the dial and you won't hear any static until it begins to lock into the next station.
 

Platinum Member
Username: Jan_b_vigne

Dallas, TX

Post Number: 11541
Registered: May-04
.

AM Stereo?


DS - Most modern tuners consider the very limited frequency range of AM broadcasts to be unworthy of serious attempts at quality reception. If they concentrate on tuner functions at all in a receiver, they will favor the FM side of the dial. I suspect the old tuner had a ferrite rod for the AM antenna. What sort of AM antenna were you using on your "modern receiver"?


.
 

Bronze Member
Username: Dscrobe

Reading, PA USA

Post Number: 60
Registered: Dec-05
Not stereo. Only has one 8" 8 ohm loudspeaker. For the modern receiver, I use the standard 6" dimeter wire loop that came with it. Looks like it has only five turns at the most.
 

Platinum Member
Username: Jan_b_vigne

Dallas, TX

Post Number: 11553
Registered: May-04
.

The loop antenna is meant to be removed and positioned for best reception. That might slighty improve your station count. Or, you could try a very long wire whip antenna placed as high as possible. A run across the backyard is usually sufficient (make sure it's earth grounded if you try this). But, the highest probability is your receiver just doesn't do AM very well.

.
 

Gold Member
Username: Exerciseguy

Brooklyn, NY United States

Post Number: 1424
Registered: Oct-04
I don't know if you've seen this http://www.sixmoons.com/audioreviews/tubetuner/r601p.html thing, but it looks pretty neat.

Jan, why have manufacturers abandoned the ferrite rod design?
 

Platinum Member
Username: Jan_b_vigne

Dallas, TX

Post Number: 11634
Registered: May-04
.


People used to use them as handles and then get p!ssed when they broke their new component.
 

Gold Member
Username: Exerciseguy

Brooklyn, NY United States

Post Number: 1427
Registered: Oct-04
I suspect you're not kidding.

I get terrible AM reception, I'm getting interference from outside my apartment and have been unable to remedy the condition. Currently I'm only using the stock plastic-rectangle loop antennas, but I've considered picking up one of these http://www.ccrane.com/antennas/am-antennas/index.aspx , any thoughts?

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