All the parts

Like a construction-kit manual — all the parts of the Character Generator kit: from transistors and resistors to the screen and labels. The NOT and AND gates are our own, built in lesson 1; the transistors inside them are counted in the first bag.

Bag 1

Transistors

Everything built in the kit, down to the bottom: 455 transistors. The matrix is N only: 233 transistors, one per lit dot of the font.

×344

N transistor

×111

P transistor

Bag 2

Resistors

The new part of the kit — one per matrix column: holds the dot at 1 until a transistor pulls it down.

×35

Resistor

Bag 3

Gates

Our own gates from lesson 1. NOT: 4 in the decoder, 35 at the outputs to the screen. AND: 24 in the decoder.

×39

NOT

2 tr.

×24

AND

6 tr.

Bag 4

Controls and screen

How to set the code and where to see the result.

×1

Screen 5 × 7

35 dots

×4

Switch

C0…C3

×16

Row lamp

s0…s15

×1

Code display

×1

Power

×1

Ground

Bag 5

Connections

Labels, splices and wires on the canvas of the finished kit.

×264

Labels

×732

Splices

×1 712

Wires