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 Post subject: Re: philco 48-482 restoration- Distorted sound
PostPosted: Mar Wed 04, 2020 5:38 pm 
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Joined: Mar Thu 03, 2011 8:53 pm
Posts: 1249
Location: Davis, CA
One question I meant to ask. Since the FM antenna is induced (correct terminology?) off of the power cord is the length of the power cord important. The cord on this radio is 48 inches long.

Thanks, Bob


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 Post subject: Re: philco 48-482 restoration- Distorted sound
PostPosted: Mar Wed 04, 2020 6:00 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 11988
Location: San Jose, CA USA
No, the length of the power cord doesn't particularly matter. It is not tuned to a specific length, and basically the antenna is somewhat further extended into the house wiring by plugging it in.

What you will find is that the changing the position of the power cord can sometimes have a strong effect on reception.

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Tom K6VL


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 Post subject: Re: philco 48-482 restoration- Distorted sound
PostPosted: Mar Thu 05, 2020 5:27 pm 
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Joined: Sep Wed 10, 2014 7:13 pm
Posts: 1173
Location: Urbana, Illinois
"Power cord" FM antennas work well for strong local stations,
But you will probably get better FM reception by using a "T shaped" FM dipole made of old fashioned 300-ohm twinlead.
These T-shaped FM dipoles were frequently supplied with 1970-1980 vintage stereo receivers.
I should post a photo of one.

-EB

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I’m learning to be a leading-edge designer of trailing-edge technology.


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 Post subject: Re: philco 48-482 restoration- Distorted sound
PostPosted: Mar Thu 05, 2020 5:57 pm 
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Joined: Mar Thu 03, 2011 8:53 pm
Posts: 1249
Location: Davis, CA
Thanks Tom and EB for the responses. I have a dipole antenna made up so will give it a try.

Bob


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 Post subject: Re: philco 48-482 restoration- Distorted sound
PostPosted: Mar Fri 05, 2021 5:00 pm 
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Joined: Mar Thu 03, 2011 8:53 pm
Posts: 1249
Location: Davis, CA
I started another thread on the volume control on this radio and decided to add it here too to maybe get more exposure.

The volume control works for a short while after I clean it with dioxit but after a short period of time it gets scratchy and noisy again so i would like to replace it. It is a 2 meg control with a tap at 1 meg. Do I need to find an exact replacement or can I substitute in something else to replace it? I have a new 1 meg control on hand.

Thanks, Bob


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