Materials
------------------------------------------------------

Here's a list of items you might want to be collecting.  Most are very cheap, or free if you can get parts from existing items.  In addition there may be some components available for use in Mel022 when we start, but in general you're recommended to find your own.

The materials below are separated into tasks.  It's still possible that these tasks will change slightly.

Don't worry if you can't get everything now, and I'll go over everything again when we start.

Further details on 

http://rhoadley.org/courses/ptech

------------------------------------------------------

t1 Cable:
- A couple of metres of two core screened audio cable.
- Stereo Minijack plug.
- Two quarter inch mono jack plugs.

t2 The Laying On of Hands:
- A battery-powered AM radio or other toy;
- Batteries for the radio/toy;
- A small screwdriver, flat and/or Phillips, as required to disassemble the radio/toy;
- Plastic electrical tape, maybe.
- Optionally: cigar box, double-stick foam tape

t3 Amplifying your Toy:
- A socket of some description. Most common is mini-jack. It can be stereo, but as the output of your toy is likely to be mono, mono would be better.
- A cable to connect to whatever you want to connect your socket to. If you've planned this, you might be able to use the cable you produced for task one.
- A separate speaker or piezo for testing.

t4 Simple, Cheap, Synthesis:
- A plastic prototyping board ("breadboard"), e.g. Rapid online part number 34-0650
- 1 CMOS Hex Schmitt Trigger Integrated Circuit (74C14, CD4584 or CD40106), e.g. Rapid online part number 83-0482.
- Assorted resistors, capacitors, pots, and photoresistors.
- Some small signal diodes, such as 1N914, Rapid part number 47-3116.
- Some solid hookup wire.
- A plug to match your amp.
- A 9-volt battery and connector.
- A battery powered mini-amplifier (or speaker, or make your own).

t5 Sudomini:
- NE555 Timer - Rapid Online: 82-0336
- 0.1 uF - capacitor - 08-0235
- 22 uF - capacitor - 11-0230
- 10k - resistor - 62-0897 (100)
- speaker (8 ohm) - 35-0150 (mylar)

t6 Box Your Toy:
- A project box

------------------------------------------------------

Suppliers
---------
Shops
---------
Gee's (Mill Road)
Maplins (Regent Street)
Maplins (Beehive)

---------
Online
---------
Rapid http://www.rapidonline.com/
RS http://uk.rs-online.com/web/
Farnell UK http://uk.farnell.com/
Maplin http://www.maplin.co.uk/