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Old 05-19-2005, 09:15 AM   #15
Rivet Master
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Inland RV Center, In's Avatar
Corona , California
Join Date: Feb 2002
Posts: 16,499
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Door bells.

Airstream uses a 24 volt AC doorbell.

24 volts AC is equal to 16.98 volts DC.

24 divided by 1.414. Dividing AC by 1.414 gives the effective DC voltage.

In 64 Airstream used a dual voltage transformer and called it a "Univolt".
It provided 12 volts AC for the lights and 19 volts AC for the vent fan motors.

Therefore a 24 volt AC door bell works quite well on 12 volts DC.


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Old 05-24-2005, 08:25 PM   #16
4 Rivet Member
1990 34' Excella
Windcrest , Texas
Join Date: May 2005
Posts: 248
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Thanks so much for the great tip. I went to Home Depot and picked one up for $7 and it works great. We just upgraded the stereo system from the 'old 8-track' and I also added a satellite radio. Sounds great so far!

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Old 05-25-2005, 12:39 PM   #17
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1992 30' Airstream 30
Santa Rosa , Northern California wine country
Join Date: May 2003
Posts: 618
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My 9 y/o son uses the doorbell whether the door is closed or open. He loves it.

1992 Airstream 300LE, rear queen, Banks Power!
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