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Discussion Topic:
original radio using 12 volts
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fenbach |
08-12-2017 @ 10:22 PM
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Member
Posts: 227
Joined: Dec 2009
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anybody know how to power an original 6-volt positive ground radio in a 12-volt neg ground system? thanks.
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sarahcecelia |
08-13-2017 @ 9:33 AM
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Senior
Posts: 1193
Joined: Mar 2013
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Yup! Randy Rundle at WWW.Fifth Avenue internet garage.com, Clay Center, Kansas. makes a resistor for just that purpose! 785-632-3450. By the way-The radio doesn't car about pos., or neg. One of my 1950 cars is 12 volt, and it works fine.
Regards, Steve Lee
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fenbach |
08-13-2017 @ 7:45 PM
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Posts: 227
Joined: Dec 2009
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thanks steve, you're right, the radio doesn't begin to know the difference between positive and negative ground. with a mechanical vibrator anyway.
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Drbrown |
08-13-2017 @ 9:15 PM
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I understand electronic vibrators last longer but they may be sensitive to polarity.
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51f1 |
08-14-2017 @ 6:00 AM
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Speaking of polarity, when I was in school back in the stone age, I used t run car radios off of AC (with the vibrator in it) by simply connecting it to a 12-volt transformer. Old car radios were a lot better than those sold for home use.
Richard
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JT Ford |
08-14-2017 @ 9:49 AM
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New Member
Posts: 112
Joined: Oct 2009
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The new solid state vibrators are polarity sensitive...
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fenbach |
08-15-2017 @ 11:47 AM
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Member
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i checked randy rundle's web site and found a page explaining why a 12 to 6 volt voltage reducer CAN'T be used with an original radio. http://fifthaveinternetgarage.com/tech_tips_Why_cant_i_use_a_voltage_reducer.php nevertheless, I found one one that seems to work just fine. https://www.amazon.com/gp/product/B01CUA4KK8
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TomO |
08-16-2017 @ 7:17 AM
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Posts: 7252
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You are talking apples and oranges. The Rundle voltage reducer is just a high wattage resister and the converter that you bought appears to be a solid state regulator, probably a zener diode that will not convert the voltage and current to heat.
Tom
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sarahcecelia |
08-16-2017 @ 1:00 PM
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Posts: 1193
Joined: Mar 2013
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Yeah, but like I previously told you, One of my 1950 cars is converted to 12 volts and the radio doesn't seem to know the difference.
Regards, Steve Lee
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sarahcecelia |
08-16-2017 @ 1:04 PM
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Senior
Posts: 1193
Joined: Mar 2013
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Who wants to listen to an old AM radio anyway. I don't! You can't get anything worth listening to; but if you must, send it out and get it converted to 12 volt AM/FM.
Regards, Steve Lee
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