Assortment of Memrobilia and Gadgets that may be of interest to some

 

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This is a 3D painting entitled “Enchanted Valley” painted in 1960.
The Original was done in Oils. This was done mostly in Plaster of Paris.
The Trees and Rocks were made from Plaster of Paris.
The Girl was shaped from Plaster of Paris.
The picture has a Neon light to denote the Sun shining through the trees.
Perspex (Painted on the underside) denotes the water.
The picture is mounted in a box frame.

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 Water Colour Painting of Fairies

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 Oil Painting of Denny

 

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 Bronze antique National Cash Register dated 1913
Restored by myself. A sterling machine (Pounds Shillings and Pence)
The Original machine had no Special Indicator
This I made out of Fibre Glass from a mould I made out of rubber latex and a borrowed Special Indicator.
The Fibre Glass Special Indicator I then Painted and fitted to the Cash Register.
The machine was cleaned in an acid bath and then sprayed with clear lacquer to prevent tarnishing.
Key Amounts from 1/2 Penny to 10 shillings

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 Class 4000 National Cash Register
Restored and Chromed
Sterling Machine
Dated 1937
Key amounts from 3 Pence to 1 Pound

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 Nixie Clock made from old Nixie Tubes
Nixie Tubes are dated around the 70’s (Before LED’s were invented)
This clock is a mix of old and new technology
Driven by a Microcontroller and a Real Time Clock chip.
The Nixie tubes operate on 70 volts, whereas the Microcontroller circuit runs on 5 volts
A DC to DC circuit was required to convert 5 volts to 70 volts

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 Run About Robot
Commands are sent via RF (Radio Frequency) to the robot from a hand held controller
Commands are Forward, Left, Right, Reverse, Stop, Beep and Blink
Commands are sent via RS232 to and from the Microcontrollers via 433Mhz Transceivers

Click to see Video

 

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3 Dimensional Seascape
Uses a circular neon lamp as the light source behind the circular frame
The sea is at an angle sloping forward so that the neon ballast can be concealed behind
The birds are suspended in the air. The clouds are made from cotton wool.
A second Seascape uses an electronic ballast for immediate turn on

 

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My original first robot
Uses a PIC Controller, and modified Servo Motors
A pair of Infrared transmitter and receiver sensors provide the robot with “Eyes”
The robot moves forward until it sees an object,
which will cause it to reverse and then travel away from the object

Click to see Video

 

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Perimeter Alarm
In addition to my standard home alarm system,
I developed this to monitor the outside of my house
This system monitors 10 IR sensors around the house covering each window and door
Should anyone come near any of these sensors
the alarm will beep and the corresponding LED will illuminate
Has the option switch to connect to the standard house alarm

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This is a Toy that I made for my Grand Daughter Jennae
This is a little Acrobat Man that does tricks as you operate the handle

Click to see Video

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The worlds first Microprocessor. The 4004 (designed in 1971)
Designed by Intel for Busicom, a Japanese calculator manufacturer
Busicom commissioned Intel (a memory chip manufacturer) to design the 4004
This was a 4 bit microprocessor. This was used in the Busicom 141-DA
This chip ran at 760Khz and had 4Kb of program memory
The success of the 4004, was followed the following chips 4040, 8008, 8080 then 8085
Today the Intel i7 (a 64 bit processor) is the state of the art
and is probably more than 1000 times more powerful than the 4004
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.....................The first Transistor was invented in 1947 by Bell Labs
Today Transistors come in all Shapes and Sizes .
The first Transistor was assembled by hand
Today more than 6 million Transistors could fit into the full stop at the end of this sentence.
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My First Computer
This was an Acorn Computer which I bought in the 80's
This machine had 12K of memory, Programs were written in Basic and saved to an Audio Cassette.

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......................A Micro Processor Development system that I built based on the Micro-Professsor Training Kit.
The right side is the Training Kit which runs on a Z80 MicroProcessor, which runs all 8080 based code.
The left side is the 8748 Programmer and In Circuit Emulator which I designed. On the far left is the target board, which the Emulator runs in real time.
This system was used to develop an Interface between the NCR 7770-100 Cheque Processing Machine and the NCR PC4 computer. This gave the 7770 high order communication capabilities before the NCR factory was able to do this. This resulted in a number of sales to Standard Bank.
In developing this Interface, my board had to connect to the pocket propriety LAN. However As there was no documentation on the pocket LAN protocol, and the designers at the factory had left, I had to first build a datascope to work out the Communication protocol before I could proceed.

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MCS-85 MicoProcessor Training kit modified to program Eproms
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Romulator I developed to simulate an Eprom.
This contains Ram which is downloaded serially from a computer.
I used this Romulator to develop the Eprom program for the Pick n Pay Daughter Board All the software was developed and downloaded from my computer sothat when I was satisfied that everything worked, I only had to burn the final Eprom.

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LED Chaser which displays a moving rotating colour pattern.
Based on Tri Colour LEDs which are controlled by program in a Micro Controller Chip

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Robot Built from a Kit
Has various sensors. Light Sensors, Ultrasonic to give the Robot sight.
Controlled from a hand held controller via an Infra Red Beam.

Click to see Video

 

 

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