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General Vintage Technology Discussions For general discussions about vintage radio and other vintage electronics etc. |
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6th Oct 2021, 3:42 pm | #1 |
Hexode
Join Date: Jan 2011
Location: Düsseldorf, Germany.
Posts: 368
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12 Volt car battery voltage to 12/13,5 VAC 50Hz - 5/6 Watts
Hello!
I need a simple schematic to invert 12 - 13,5 VDC (car battery) to 12 - 13,5 VAC! Consumption is only 5-6 Watts at clean 50 Hz! Any ideas? Thanks in advance! Regards, German Dalek
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6th Oct 2021, 4:21 pm | #2 |
Guest
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Re: 12 Volt car battery voltage to 12/13,5 VAC 50Hz - 5/6 Watts
May I ask what it is for? Is the clean bit frequency or waveform?
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7th Oct 2021, 6:40 am | #3 |
Hexode
Join Date: Jan 2011
Location: Düsseldorf, Germany.
Posts: 368
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Re: 12 Volt car battery voltage to 12/13,5 VAC 50Hz - 5/6 Watts
Good morning!
I have a (once pulled from Stereo assy) good high quality DUAL record player. It is a really rare 12 VAC powered set. I am always on the run hunting records on fleamarkets across Germany, France, etc. I don`t like these low quality battery-powered plastic record players/destroyers. So far away from home I like to listen to some records I just have bought. With a 9/12 VDC RIAA and the amp of a car radio it will be possible to listen in the car, with a good sound and the (holy ) records cannot get damaged. Of course I have some 12 VDC / 230 VAC supplies, but I like to do something with that DUAL 496 RC. So I am still hoping for a simple solution..... Regards, German Dalek
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7th Oct 2021, 10:38 am | #4 |
Octode
Join Date: Dec 2018
Location: Llandeilo, West Wales, UK.
Posts: 1,092
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Re: 12 Volt car battery voltage to 12/13,5 VAC 50Hz - 5/6 Watts
Referencing the circuit diagram it looks like the only part that needs to be 50Hz (or 60Hz) is the strobe light. The rest runs off DC from the rectifier / cap stage.
Might even work off 12 volts from the battery? Or a 12 to 15 volt DC to DC converter? As long as the 'strobe' is not important in the car. The User and Service manual are both available free online by the way.
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7th Oct 2021, 4:49 pm | #5 |
Octode
Join Date: Dec 2019
Location: Owston Ferry, North Lincolnshire, UK.
Posts: 1,701
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Re: 12 Volt car battery voltage to 12/13,5 VAC 50Hz - 5/6 Watts
Maybe a 50/60 hz timebase oscillator ic could be used for lighting the strobe and it would power from the 12vdc supply.
Dave
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