This is a build thread of a 1KW version of the Cosmic Induction Generator, as envisioned by Eric. Almost all the parts have been acquired already, and some of the components of the build have already been completed. The rough design has been done, but there are some details that need to be worked out yet. I see this as sort of a group build, as I am building the project, but hopefully the group here can help contribute to some of the design elements that are still incomplete. Any constructive advice or criticism is welcomed and appreciated! I am not an expert. I have received help from Eric so far, but I am not always in contact with him, so I am hoping to make a group effort to complete this project.
The CIG basically consists of an AM amplifier/transmitter which powers some Tesla coils. The transmitter consists of vacuum tubes providing the power amplification. Solid state components are used very minimally. The Tesla coils are in a unique configuration, two Tesla Transformers aimed at each other creating an extremely intense dielectric field in the middle of the two units. Also where a normal Tesla coil would be grounded to the earth in order to transmit, these coils will be referenced only to each other.
Between the two coils is where the magic happens. For the CIG, the objective is to put a bulb containing a gas conducive to plasma creation - in the middle of the intense dielectric field and see the "galaxy in a bulb". It is reported by Eric that inside the bulb the plasma takes on a life of its own, and the electricity has a memory, and displays intelligence. The primary objective of this project is to recreate that display. The nice thing about the CIG though is that it is multipurpose. It can also be used to create "singing" arc discharges when modulated with an audio source. Also, all the coils(primaries, secondaries, extras) are being built on independent frames and stands, so they can be used in a different configuration than just pointing at each other. If spread apart and grounded they can be used to transmit and receive to each other.
Another goal of the project will be to recreate the "radiant matter" experiment that was at the recent Bedini-Lindemann conference. I personally witnessed this experiment of charging a capacitor to over 5000 volts through space. It was quite shocking! Also I felt the "radiant matter" being emitted by the incandescent bulb. It was a strange warm, fuzzy, tingling feeling. I definitely hope to feel that again!
The Induction Generator can be simplified to 3 distinct components: power supplies, the transmitter section, and the tesla coils.
The power supplies are pretty basic linear supplies. The transformers used are center tapped, and vacuum tube rectifiers are used to rectify the AC. Choke input filters consisting of a swinging choke and smoothing choke are used to regulate the DC. Oil capacitors and bleeder resistors go on the output of the power supplies. A variac goes on the primary of each HV transformer for adjust-ability and to dial in the proper voltages for the vacuum tubes. The power supplies are pretty basic. There is an integral safety interlock though that is required to cut all screen voltages if plate voltage is suddenly lost- to protect the tubes. If plate voltage is suddenly lost the screen suddenly becomes the plate and can be quickly destroyed by a current overrun. So there is a necessary feedback mechanism to the screen voltage power supplies. Part of the "power supplies" includes the filament supplies for the tubes. The objective is to make the filament voltage adjustable as well for two reasons:
1. To slowly warm up the tubes and prevent a large surge of inrush current.
2. As the tubes age the filament voltage can be turned up a little bit to boost the emission of the cathodes.
To provide this adjust-ability rheostats will be placed on the primaries of the filament transformers.
The transmitter will be Class C operation. This particular design consists of 829B driver tubes and 4-250 power tubes. The tubes will be in push-pull operation, driven at their maximum permissible values. The operating frequency is chosen to be 1.8 Mc, or 160 meters. The 829B tubes will be driven by a WW2 era VFO/Exciter/Transmitter called a TCS. The TCS puts out approximately 25 watts at an output impedance of around 10,000 Ohms. It will be coupled to the 829B's through an input transformer. A tentative schematic for the transmitter I've come up with is below:
The coupling and blocking capacitor values have already been chosen, as shown, as well as the RF choke component values. Eric specified 1/4 wavelength chokes to be used as RF chokes in the plate circuits. I'm not exactly sure why that design pattern was chosen. The .05 uF caps are to pass the signal current, the .005 uF caps are to filter out higher frequency parasitic oscillations. The capacitors are all of the mica-type. The 5 mH chokes are to keep RF out of the power supplies, and the micro-Henry valued chokes are to filter out any high frequency oscillations that are able to pass through the 5mH chokes due to the distributed capacitance in the milli-Henry valued chokes. The mA circles are milli-amp meters that go on every electrode of the vacuum tubes. Split stator variable capacitors are specified to be used in the tuned tank circuits, in order to keep the networks balanced. The grid and plate tank circuit inductance and capacitance component values have yet to be designed.
Overall I'd like this to be a learning experience for me as well as all who are involved. If anyone has any questions I would be happy to answer them if I have the knowledge to do so. I also have lots of pictures of stuff I've built so far, so if there are any pictures people would like to see, let me know. I could fill up page after page with pictures so I don't want to clog the thread up too much. Also if anybody has any questions on how I built something, or why I did something that way I would be happy to explain. Peer review is very beneficial!
Let the fun begin!
Note: As just a quick aside I don't want to address any of the recent drama regarding the lab in this thread. If someone wants to talk about that please do it in a different thread or send me a private message.