Radio Kits and Parts

	One Megahertz Crystal Oscillator 5 pack Price: $17.94 Quantity in Basket: none
These tiny oscillators are used in the AM Transmitter project. The one megahertz frequency is conveniently in the middle of the standard AM radio band, making it easy to find on a cheap transistor radio.
	Single One Megahertz Crystal Oscillator Price: $4.11 Quantity in Basket: none
These tiny oscillators are used in the AM Transmitter project. The one megahertz frequency is conveniently in the middle of the standard AM radio band, making it easy to find on a cheap transistor radio.
	Computer Controlled Transmitter Price: $6.73 Quantity in Basket: none
The parts needed for the Computer Controlled Transmitter. One 1 Megahertz oscillator, one RS232 socket, and one alligator test lead. All you need to send free text messages to friends without wires, without Internet fees, and without telephones.
	Audio Transformer Price: $5.73 Quantity in Basket: none
These transformers are great for allowing crystal radios to use low-impedance headphones. They are also perfect for the laser communicator project, and the AM transmitter project. They convert 8-ohm impedance to 1,000 ohms. The 1,000 ohm side is center tapped.
	AM Radio Transmitter Kit Price: $9.63 Quantity in Basket: none
The hard to find parts for the AM Radio Transmitter project. One 1Mhz Oscillator One Audio Transformer
	1N34A Germanium Diode Price: $0.84 Quantity in Basket: none
For use in the Crystal Radio projects Also, this is a good example of Germanium for your collection of samples in the Periodic Table of the Elements.
	RS232 Female Connector Price: $2.13 Quantity in Basket: none
One Female RS232 Connector
	Ten Germanium Diodes Price: $7.86 Quantity in Basket: none
Ten 1N34A Germanium diodes.
	One Hundred Germanium Diodes Price: $55.72 Quantity in Basket: none
One hundred 1N34A Germanium diodes
	Piezoelectric Earphone Price: $6.84 Quantity in Basket: none
For use in the Crystal Radio projects, and to listen to electric fish. Also great for the laser communicator project.
	Ten Piezoelectric Earphones Price: $46.54 Quantity in Basket: none
For use in the Crystal Radio projects, and to listen to electric fish. Also great for the laser communicator project. For those who are planning on building several projects.
	One Hundred Piezoelectric Earphones Price: $385.83 Quantity in Basket: none
When you really need a lot of earphones.
	Ferrite Core Coil Price: $3.13 Quantity in Basket: none
For use in the AM Radio projects. Acts as a coil and an antenna.
	Ten Ferrite Core Coils Price: $19.73 Quantity in Basket: none
Ten coils, for when you are building several radios.
	One Hundred Ferrite Core Coils Price: $159.54 Quantity in Basket: none
When you are building lots of radios.
	Variable Capacitor Price: $2.47 Quantity in Basket: none
For use in the AM Radio projects. Varies from 0 to 160 picofarads. Also from 0 to 60 picofarads.
	Ten Variable Capacitors Price: $19.74 Quantity in Basket: none
If you need to build several radios.
	One Hundred Variable Capacitors Price: $159.68 Quantity in Basket: none
When you have a whole lot of radios to build.
	The MK484 Radio on a Chip Price: $3.41 Quantity in Basket: none
For use in the Three Penny Radio project. A 10 transistor tuned radio frequency integrated circuit with automatic gain control.
	Battery Holder Price: $2.82 Quantity in Basket: none
For use in the Three Penny Radio project. Holds one AA size battery.
	The Three Penny Radio Kit Price: $14.78 Quantity in Basket: none
The parts needed for the Three Penny Radio project: 1 Piezoelectric earphone 1 Ferrite core coil 1 Variable capacitor 1 MK484 AM Radio IC 1 AA Battery Holder 1 100,000 ohm resistor 1 1,000 ohm resistor 2 0.1M capacitors 1 0.01M capacitor
	Ten 3 Penny Radio Kits Price: $112.73 Quantity in Basket: none
Ten radio kits.
	One Hundred Radio Kits Price: $983.62 Quantity in Basket: none
One hundred radio kits.
	Solar Cell Price: $2.86 Quantity in Basket: none
Tiny Silicon Solar Cell For the laser communicator, or for powering the three penny radio. (You will want three for the radio.) This tiny solar cell is 2 centimeters on a side. They can be soldered, but we find it easiest to use transparent tape to stick wires onto the cell. This makes a good sample for Silicon in your collection of samples for the Periodic Table of the Elements.
	Three Tiny Solar Cells Price: $6.38 Quantity in Basket: none
Three tiny solar cells, each 2 centimeters square. These are enough to power the Three Penny Radio.
	Ten Tiny Solar Cells Price: $16.94 Quantity in Basket: none
Sometimes you just want more power.
	Simple Crystal Radio Kit Price: $9.41 Quantity in Basket: none
The parts needed for the Simple Crystal Radio project: 1 Piezoelectric earphone 1 Ferrite core coil 1 Variable capacitor 1 1N34A Germanium diode 2 Alligator test leads
	Ten Simple Crystal Radio Kits Price: $79.84 Quantity in Basket: none
Have a radio building party.
	One Hundred Simple Crystal Radio Kits Price: $738.37 Quantity in Basket: none
Schools often need lots of kits.
	One Alligator Test Lead Price: $0.65 Quantity in Basket: none
These are brightly colored wires with alligator clips on each end. They are used to quickly get an electrical project up and running, or to test different configurations of a project quickly and easily. They can be cut and soldered into our radio projects to make attaching antennas and ground wires quick and easy.
	Ten Alligator Test Leads Price: $5.63 Quantity in Basket: none
Ten Test Leads. They are so handy, you will want more than one.
	Solderless Breadboard Price: $8.85 Quantity in Basket: none
Solderless breadboards allow many of our electronics kits to be built without any soldering required, or with minimal soldering to attach leads to some parts. This solderless breadboard has 63 rows of 10 connection points (630 connections) plus two power rails, one on each side. This allows plenty of room for combining projects on the same board, or for adding your own enhancements.
	Printed Circuit Board Price: $5.13 Quantity in Basket: none
This is the generic printed circuit board used in the Free SPace Laser Communicator project and the Solderless Breadboard projects. It has room for a 20 pin integrated circuit (10 rows of 5 holes, arranged as 3 holes for parts and 2 holes for external connections). There are two boards connected by snap-off tabs, so either two separate projects, or one larger project can be made using the same board. Similar to the Radio Shack part number 276-159B.
	Simple Amplifier Kit Price: $13.48 Quantity in Basket: none
All the parts for the Simple Amplifier. Small speaker (1.5 inches), Darlington transistor, circuit board, resistors, jumper wires, and battery clip.
	Integrated Circuit Amplifier Kit Price: $17.34 Quantity in Basket: none
All the parts for the Integrated Circuit Amplifier. Small speaker (1.5 inches), integrated circuit amplifier chip, circuit board, resistors, capacitors, jumper wires, and battery clip.
	Digital Multimeter Price: $11.57 Quantity in Basket: none
Digital Multimeter. Reads 0 to 200 microamps at the most sensitive current scale, so this is a good meter for the photocell and other projects that need sensitivity. Also great for the digital thermometer project.
	Digital Thermometer Kit Price: $22.84 Quantity in Basket: none
Everything you need for the Digital Thermometer Kit. The multimeter, an LM34 Fahrenheit sensor, an LM35 Celsius sensor, two 180k ohm resistors, a 9 volt battery clip, and three alligator test leads.
	Magnet wire Price: $8.73 Quantity in Basket: none
Sixty feet of 22 gauge polyurethane coated copper wire. The green insulation is easy to distinguish from the bare copper, so it is easy to scrape off just the right amount when building the Simple Motor project. Also great for winding the antenna coil of the Portable Crystal Radio, and the perfect length for an antenna for the Simple Crystal Radio project. This makes a good sample for Copper in your collection of samples for the Periodic Table of the Elements, especially if you sand off the insulation.
	Portable Crystal Radio Kit Price: $12.52 Quantity in Basket: none
All the parts you need for the Portable Crystal Radio project, except for the cardboard box (the one we ship the kit in might work in a pinch, but it's a little smaller than ideal). You get 60 feet of 22 gauge magnet wire, a variable capacitor, a germanium diode, and a piezoelectric earphone.
	Ten Portable Crystal Radio Kits Price: $101.67 Quantity in Basket: none
Ten Portable Radio Kits.
	Fifty Portable Radio Kits Price: $455.17 Quantity in Basket: none
Fifty Portable Radio Kits Enough for a whole class or two.