Do they have to touch and would too much oil interfere in their touching?

[bob_villain]

[Stormin Mormon]

I remember my parents 1970 Chevrolet Nova. The AM antenna was in the windshield, sort of T shaped loop. No whip antenna to be had.

Worth a try with the oil. Though, the problem may be motor or other mechanism.

[Ralph Mowery]

Many cars had the antenna in the glass. It was for the AM and FM if the car had both in it. I am not sure where it is in my Camry. Doesn't appear to show up in the windshield.

[gfretwell]

That is in response to people breaking off the regular whips and all the problems they had with the early retractables

I am old enough to remember car radios with tubes in them. (vibrator power supply). In those days a radio would kill a battery pretty fast because they pulled about 15a. We didn't start seeing transistor radios in cars until the 60s. That was "daddy's car", our cars look like something you see in Havana today. ;-)

[bob_villain]

Dad's '60 Caddy had an excellent tube radio...the buzz nearly imperceptible. And you could get to the tubes and vibrator easily...

[gregz]

Those mechanisms can slip. Use a little wipe of oil off rag. Don't over use oil. Mineral oil, CRC 2-26, silicon spray, or silicon oil. Some tire blacks are silicon oil.

Greg

[Scott Lurndal]

Once the carrier (solvent) evaporates, it is.

[Scott Lurndal]

You'll not see the loop antenna, it's built into the radio body.

[Scott Lurndal]

The antenna built into the window was a dipole FM antenna.

[Ralph Mowery]

I have seen plenty of the antennas similar to that in radios, but not in one that is used in a car which is the topic of the discussion.

Even back in the 1950s when almost all car radios were AM they used an external whip type of antenna.

[gfretwell]

...And the radio will not work without it so there is no "built in " loop. Truth be told, AM will work with just about anything for an antenna if you are anywhere near the station but you need something.

[Ralph Mowery]

I have not looked at any of the newer car radios, but I bet they do not have a loop type like that pix in them any more as they are most likely synsitised and use a crystal and digital circuits for tuning.

Those old loops ere not only for signal pickup, but part of the tuned circuits for the AM radios.

Yes, for AM almost anything will receive the signasl of the stronger local sttions. That is why many of the home and pocket AM receivers did not have an external antenna. They just used the loop inside them that was also the tuned circuit to tune in the stations.

[makolber]

loop antennas are used for AM portable and home radios.

Loop antennas are NOT used for car radios.

M