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Remote Controlled LED
T3sl4
428 views
This is a simple AM code oscillator and reciever. As radio goes, it's pretty bad -- lots of crosstalk (it oscillates on its own, not really intentionally, this isn't suppo...
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Induction Heating Steel
T3sl4
1,321 views
Total elapsed time about 8 minutes, not sure what power level (I didn't have my instruments on hand). The slug got hot enough to melt its oxide coating (which caused it to...
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Copper Chloride with Aluminum
T3sl4
2,710 views
Copper is a noble metal, while aluminum is very reactive. But it's only reactive when the oxide layer is removed. Copper sulfate does not remove this layer, so it hardly ...
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High voltage boost circuit
T3sl4
622 views
For the Dutchforce Electronics Forum / Weekly Electronics Challenge.
The challenge is to convert a supply of about 15V or less to as high a voltage as possible, using a si...
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Tubescope Vertical Amplifier
T3sl4
269 views
Building a tube based oscillscope.
Now, I put a switching supply in this thing already, so it's obviously not all tube. I'm trying to have as little solid state in the ...
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Induction Stirring
T3sl4
466 views
This aluminum melt began as random hunks about ten minutes earlier. As I vary the power level, you can see the melt kind of scrunches up as it's repelled by eddy currents.
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Skin Effect
T3sl4
3,765 views
More on the big induction heater.
I made a larger coil today (7" i.d., 3/8" copper tubing, 6 turns), so I can fit larger workpieces. Notice the #4 clay-graphite crucibl...
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Big Induction Heater
T3sl4
6,950 views
I've finally plugged it in to the 240V outlet!
I don't have a power meter, but I'm guessing this was around 3kW. The inverter output was 60A peak, which is around 5.7kVA....
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Electric Vehicle Controller Demo
T3sl4
937 views
This is my EV controller. Here, it's connected to a single transistor output stage -- the real thing will be 10 times bigger, rated for 144VDC input, at up to 1000A peak o...
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Saturable Reactor
T3sl4
2,205 views
Desperately needing a random electronic release this weekend, I wound a quick saturable reactor. The cores are high permeability, so they saturate pretty easily. The wind...
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