Original has 4 wires, flyback has 3. Not sure how to wire it up. Need ignorance relief.
Do you have any picture?Original has 4 wires, flyback has 3. Not sure how to wire it up. Need ignorance relief.
You don't need a CRT flyback transformer to incinerate flying insects.Will post pics soon's I get another out of old monitor.. 1st 2 flybacks I salvaged were bad.
Not if you use the heater winding as the primary.What you have there is a TV Lopt, which is tuned to 15khz, and will need an hv supply of around 150v dc.
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Having acquired some 8uF 2.5kV capacitors - I'm seriously tempted to try a capacitor discharge bug zapper.I was thinking of setting up a bug zapper, I have an ignition coil and maybe experiment with the circuit in post #9, advantage is it is low voltage supply.
Max.
It's out of computer monitor. I thought it ran offWhat you have there is a TV Lopt, which is tuned to 15khz, and will need an hv supply of around 150v dc.
You're better using an ht coil from a car.
Yes.Is this a mains powered zapper?
Use auto HV coil for L1.
Max.
It's out of a computer monitor. I thought 120 V AC would power it. I'm electronics ignorant though.What you have there is a TV Lopt, which is tuned to 15khz, and will need an hv supply of around 150v dc.
You're better using an ht coil from a car.
If you apply 120V 60Hz to the primary of a scan/EHT transformer - it'll let the magic smoke out along with other entertaining forms of excitement.It's out of computer monitor. I thought it ran off
Yes.
It's out of a computer monitor. I thought 120 V AC would power it. I'm electronics ignorant though.
So, bottom line, this ain't gonna work. Sounds like time to explore the neon transformer. Do appreciate the response.If you apply 120V 60Hz to the primary of a scan/EHT transformer - it'll let the magic smoke out along with other entertaining forms of excitement.
Monitor EHT transformers operate from at least 15kHz to 64kHz (maybe more). An oscillator/inverter circuit is one approach, the original primary winding will require at least 60V drive, so the design won't be trivial. You also have to get the phasing the right way round on a diode-split transformer.
Monitor transformers don't usually have a 6.3V winding for the CRT heater, but there may be other windings that can be driven by a lower voltage. Sometimes the supply for the vertical output is derived from a winding on the transformer - that may work from an easier voltage to handle.
You can get a very hot arc from a 4.8V Ni-Cd pack and a backwards chopper transformer from a scrap DVD player/set top box etc - its much easier to design around and a lot more compact.
Thoughts on this? http://www.ebay.com/itm/NOS-Jeffers...dee3fe&pid=100010&rk=1&rkt=24&sd=121906393641There are ways to make the more complicated circuits work but why bother? All you want to do is kill bugs as reliably as possible for as little work and money as possible.
by Jake Hertz
by Jerry Twomey
by Jake Hertz