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Directory:Bedini SG:Pricing
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Pricing for John Bedini's "School Girl Radiant Energy Circuit and Motor"
This page is a mirror to the materials list minus the additional information it has. This page focuses on the prices.
Materials List
The following is the list of materials required to replicate the Bedini School Girl circuit and motor as presented in this open sourcing project.
Parts, listed alphabetically.
Alligator Clips
- Quantity
- At least four. A dozen recommended for experimental variations (e.g. hooking up output batteries in parallel).
- Sourcing
- (get locally) estimated price local hardware store should have these)
- recommended > Minute Man Electronics Jumper Wire Test Leads - "Heavy Duty 36" Jumper Cable Set Philmore # SA45" is just the ticket with five wires of 20 guage, with alligator clips on both ends, 36" inches long, five colors; just $5.79
Batteries, Rechargeable
- Specifications
- 6 volt rechargeable and 9 volt rechargeable
- Quantity
- four 6-volt; 9 9-volt
- Sourcing
- - BATT SEALED LEAD ACID 12V 12.0AH by Panasonic LC-RA1212P1digikey.com part number P230-ND $34.34 each.
- - BATT SEALED LEAD ACID 6V 4.2AH by Panasonic LC-R064R2P Digikey part number P164-ND; $8.66 each; $7.87 for 10; $7.09 for 24.
Bicycle Wheel Rim with Working Axle
- Specifications
- 24-inch would be fine. Bearings should be in good shape. Rotation should be fairly straight.
- Price
- free (should be able to rummage one from junk)
Coil Spool
- Specifications
- plastic, 3 inch diam. by 3 inches long, with 3/4 inch center opening.
- Quantity
- one
- Sourcing
- Radio Shack spool for speaker or soldering wire will work. Remove wire from spool.
- Precision-Spools.com Solder Spools - In stock: 3.5" diam flange x 3" transverse x 3/4" bore opening. $0.20 each, $200 minimum order. [10 free samples coming]
Diode
- Specifications
- recommended: 1N4001; 1 A, 50 V
- Sourcing
- See Digikey.com part number 1N4001MSTR-ND
- Estimated cost
- less than $0.50 each
Diode, 1000 Volt
- Specifications
- 1N4007 (1000 Volt; 1 Amp) [A sister component to 1N4001]
- Quantity
- one
- Sourcing
- See Digikey.com part number 1N4007MSTR-ND
- Estimated cost
- less than $0.50 each
Heat Sink
- Specifications
- 4" x 4" x 1/16" aluminum plate
- Quantity
- one
- Sourcing
- local recycler or junk yard.
Magnet Core (Welding Rod)
- Specifications
- Welding rod; 0.042" inch diameter copper coated steel rod. 3 foot lengths. (will be cut to length of the coil spool
- Quantity
- Get 3-5 lbs. (around 10 rods).
- Sourcing
- Available at your local welding supply store (such as Oxyarc) or hardware store (such as True Value or Ace). Try also an auto parts store.
- Estimated Price
- $0.70 per rod.
Magnet Wire for Coil Winding
- Specifications
- #20 wire, coated. Can't have splices.
- Quantity
- one length (450 turns is about 100 feet. 200+ ft roll recommended.)
- Sourcing
- Marlin P. Jones & Associates 20 AWG MAGNET WIRE; stock #7255 WI - 150ft; 1/2 lb. $8.95
Magnet Wire for Trigger Coil Winding
- Specifications
- #23 wire, coated. Can't have splices. Copper with high voltage coating.
- Quantity
- one length (450 turns is about 100 feet. 200+ ft rolls recommended.)
Magnets
- Specifications
- Ceramic 5; dimensions: 1" x 2" x 3/8" inches.
- Quantity
- 16 for a 24-inch wheel. Get some extra in case of breakage.
- Source
- Magnet Sales & Manufacturing Inc. - part number 21989; Ceramic 5, standard dimensions: 1.875 x .875 x .387 inches, 150,000 in stock ; $1.60 each for 20; $0.74 each for 200. $250 minimum. For smaller orders contact their authorized eistributor: Culver City Industrial Hardware 310-398-1251. $1.99 each for 20; and $0.89 each for 200.
Neon Lamps
- Purpose
- To act as redirect for energy in case output battery is disconnected during operation of motor, to keep circuit from burning up the transistor.
- Specifications
- Chicago Miniature Neon Base Wire Terminal T-2 65VAC .6mA NE-2
- Quantity
- one
- Make & Model
- A1A by Chicago Miniature (definite)
- See also Lumex P/N GT-NE3S1025T, lumex.com Free sample
- Source
- Mouser.com part number 606-A1A Estimated Factory Lead Time: 1 week.
- Estimated Price
- $0.38 USD each.
Resistor
- Specifications
- 680 Ohms recommended
- Quantity
- one
- Sourcing
- digikey.com part number 680W-2-ND - includes component spec information.
- Estimated Price
- $0.23 USD each.
Super Glue
- Specifications
- standard super glue
- Quantity
- will need quite a bit to secure all the welding rods (e.g. four tubes of 3 gm)
- Sourcing
- (most hardware stores and grocery stores should have it)
Transistor
- Specifications
- 2N3055 Transistor, 100V, TO-3 case; fully metal
- Quantity
- one
- Sourcing
- See Digikey.com part number 2N3055OS-ND
- Estimated Cost
- $2.10 USD each
Wood (Stand)
- Specifications
- plywood or solid wood
- Quantity
- one sheet approximately 3' x 2' feet square by ~3/4" inch thick (to be cut into three pieces -- two for uprights and one for base)
- two lengths of 2" x 6" or larger of about 6 inches long (to hold coil and stabilize uprights)
See also
- Return to School Girl Radiant Energy Circuit and Motor
- Other Open Sourcing Projects
- Return to PESWiki main page
