Lords of the Ring

[giantkiller]

So my pvc circumference is +-12.75. 1 control coil segment should be 3.12 inches long. My first 1 is 2 inches. I have a gap. I can add more segments as long as the total control wire is stays as a multiple of the collector. Tuning. I would simply connect up the new segments as bucking/opposing. And what do you suppose that would look like? IS put your coil pic back out and leave it.
Don't worry... Now there are 2. If your coil is not built with matching coils then you have nothing to fear. But whoever reproduces Inno_ST coil tuned will have a real problem! Maybe they won't even get a chance to post. And you were worried about the MIB? You'ld already be dead. You'd take up smoking for your last wish.

--giantkiller. Any takers? Danger, Will Robinson!

[joe dirt]

 

[Jdo300]

Hello All,

As a mentioned a few pages back. I had done a simple coil test (along the lines of what Otto did), to prove a very basic point; that biasing and open circuiting the collector actually does something. I won?t explain this much as the photos and scope shots speak for themselves. But the basic conclusion is that bifilar collector = Good for DC; shorted collector = Bad for DC.

Here are the specs for my setup.

Pulse Coil: 50 turns of 20 gauge magnet wire wrapped on a wooden ruler

Collector coil: 14.5 inches long, speaker wire from RadioShack, stranded.

Pulse Input specs:

Approximate Input Specs

- Square wave
~ 2.25 kHz
~ 10V pk/pk
~ 3V RMS
~ 10V pk/pk

Pulse on time: 52 μS

NOTE: Pulse circuit switches 1000 μF, 100V DC cap into coil, which is replenished by my DC power supply.

NOTE: All measurements taken across a 2 KΩ carbon resistor.

God Bless,
Jason O

[Jdo300]

A couople more things. Oddly enough the waveform across the resistor always looks upside down no matter which way I connect the scope probes, though connecting across the pulse circuit output the right way 'round does give me a positive waveform.

Also, the biasing on the open-circuited collector was accomplished because my scope probe is grounded which gives the collector a slight voltage potential between the conductor with the ground probe attached and the conductor that is free-floating in the air.

Lastly, my pulse circuit is a dual-channel pulsar but I am only using the bottom channel for pulsing the coil.

God Bless,
Jason O

[innovation_station]

.