I'd have to dig through my "lab notebooks." All in 3 photocopy boxes filled with notebooks and sheets of paper. I'm recovering from bronchitis, my wife would have called 911 last Friday night if she hadn't had her knee replaced on January 31 and isn't quite up to managing alone, so don't want to breath the dust.
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So, going from a 60 year old memory, something like shown
https://www.scribd.com/document/132869868/12V-to-120V-Inverter
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Note: This is not the way to do it today. Use CMOS chips to drive MOSFETs, lower loss from collector to emitter.
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Tripplite used a similar design with heavy duty germanium power transistors in their 150W 12>120V inverter.
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My unit almost certainly didn't produce anything near 60Hz, but it worked. I'm amazed at how well a lot of my projects worked when I was somewhere beyond clueless. Of course a fair percentage were total failures. I tried to build a FM wireless mic....with a germanium transistor when I was 9. I didn't have a clue about Ft.
Now the FM wireless mic with a pair of tunnel diodes did work, range about 500 feet. Yep, certainly violated Part 15 of the FCC rules.
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And my Tesla Coil got me in trouble when it sat the wallpaper on fire.... My mother disassembled that unit with a frightening amount of anger....
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To Bertho
120F.....two of them. Bet that got a bit expensive. How do they handle temperature extremes? The spec sheets I've seen mentioned serious problems below 32F. [of course that was 20 years ago.]
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General comment, don't do this unless you know what and why you are doing it.
I needed 90V one night RFN to check a surplus 6M military radio.
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I was in Eastern Kentucky between Jackson and Hazard.
Sort of limited on options....but the grocery store (IGA) had 9V batteries.
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I used 10 9V batteries, snapped the positive from one to the negative of the next. Ugly as sin, delicate as a ...er flower, but it worked.
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I've been told I think out side the box.
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There are boxes we are supposed to think in?
