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DC13.8V to DC250V Inverter Circuit
Posted on Wednesday, November 17, 2010   •   Category: AC / DC Innveters

DC13.8V to DC250V Inverter Circuit

I have done a lot of work with valves in recent years. For me valves have many advantages, least of all the price; since they are now "obsolete" it is quite easy to get hold of them for next to nothing at rally's and junk sales. I recently purchased a couple of hundred battery valves for less than SEK1 (US$ 0.15) each. The biggest problem with valves is the PSU needed to provide +250 vDC and 6.3 vAC for the filaments. The transformers are no-longer available at a reasonable price, but a pair of 12v-6v-0v-6v-12v mains transformers will do the job just as well. For portable use only one transformer is required together with a pair of power transistors such as 2N3055 etc.

     12V to 220V 100W Transistor Inverter
     1.5V to 5V/12V DC/DC Converter with LT1073
     Car 12V to 50V DC Converter
     500W 12 Volt to 220 Volt Inverter
     DC13.8V to DC250V Inverter Circuit
     12V to +/- 30V DC to DC Converter
     12V to +-20V Automotive Power Converter (for audio amplifier)
     500W Modified Sine Wave Inverter
     500W 12V to 220V Inverter
     500W Mos-Fet Power Inverter from 12V to 110V/220V
DC13.8V to DC250V Inverter Circuit

 

Build Accurate LC Meter and start making your own coils and inductors. This LC Meter allows to measure incredibly small inductances making it perfect tool for making all types of RF coils. LC Meter can measure inductances starting from 10nH - 1000nH, 1uH - 1000uH, 1mH - 100mH and capacitances from 0.1pF up to 900nF. The circuit includes an auto ranging and reset function to make sure the readings are as accurate as possible ... [more]



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