I'm pretty sure I've looked at one of these before, but there's no harm in opening another one.
This one appears to have skimped a bit on the output voltage, so it doesn't seem to work well on tiny flies, but does work on larger bugs.
The output discharge resistor is actually 22 Megohm. (red,red,blue - 2, 2, 6 zeroes.) That makes more sense than the 2.2Mohm value.
I did a thermal test on the transistor and it only clocked in at around 30C so it's not being run too hard. I didn't test the battery current as I couldn't get my DC clamp around a primary current path.
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This one appears to have skimped a bit on the output voltage, so it doesn't seem to work well on tiny flies, but does work on larger bugs.
The output discharge resistor is actually 22 Megohm. (red,red,blue - 2, 2, 6 zeroes.) That makes more sense than the 2.2Mohm value.
I did a thermal test on the transistor and it only clocked in at around 30C so it's not being run too hard. I didn't test the battery current as I couldn't get my DC clamp around a primary current path.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
If u hooked up a 9v or more?
I usually replace the 2 AA with one 18650 and a TP4056 USB-C charging module.
It provides plenty of power and they are easy to charge.
I always put a 9 volt battery in, remove the discharge resistor and add an extra capacitor for more fun ๐
There's no such thing as a "digital amplifier". The "D" in class D amplifiers does not stand for digital. All amplifiers at the output stage are analogue. There might be some digital circuitry before the output stage, however, that does not make the amplifier section digital.
Interesting to me is people always say they have high voltage, mine has a xgd-x2 mkp which is a 275v capacitor, really weak and not at all near the 2kv people claim.
STEWIE !!!!!!!!!!! YOU MANAGED TO SLINK AWAY FROM MEG AND DO AN ELECTRIC FLY SWATTER TUTORIAL! THANKS!
Very like what Harbor Freight here in the States used to occasionally have on sale for $2. Never took one of theirs apart, though, and I think that the meshes were more rudimentary.
I have a version with a bigger capacitor and more multiplier stages. I used it as a fluorescent tube battery operated ballast
Que interesante. Gracias por las explicaciones
I have an idea, rather than pumping the transformer, could it be pulsed, using an even faster electromagnet from a multivibrator, getting way way higher current?
Small correction; there are virtually no "digital amplifiers" in existence (some were designed way back, which amplified the PCM signal from CD transports) – the amps referred to are 'switching amplifiers' (as in 'switching power supplies' – no-one refers to wall-warts as "digital power supplies"). The fact that they use quartz oscillators which are also used (for a completely different purpose) in digital circuits to generate their HF switching frequency doesn't make them "digital". For some reason even reputable, "expert" sources insist on referring to these 'class D' switching amplifiers as such – it's exasperating.
Mine looks exactly the same outside, but it doesn't have a discharge resistor across the cap. I've witnessed flies randomly landing on the grid, hours after the last button-press, and they still get blown in half.
I've one of the older ones. Had to replace the board with a better one :0 (the old one didn't like my li-ion battery mod). Little flies tend to explode now after some prolonged exposure hehe