Tuesday 26 April 2016

My First Electronic Kits

During a recent exploration of the loft I came across two of my electronics kits I was brought by my parents during my teens.

Salter Science Introduction to Electronics 


I was given this kit for Christmas or perhaps a Birthday during the late 80’s.  I remember spending many hours playing with it and trying most of the 25 fascinating experiments,   I liked the Radio and noise making projects the best.  The simple board consists of one single transistor, a couple of capacitors, resistors, diode, tuning capacitor and aerial coil complete with spring terminals to join the components together.



















Science Fair 200 in One Electronic Project lab (circa 1981, 1987)


Sometime later in the early 90’s I was given this kit for Christmas or perhaps as a Birthday present.   I spent many happy hours trying out some of the 200 projects, mostly LED or light projects.  I made the DC Meter lot as I didn't have a Multimeter.   The large board has a large selection of resistors, capacitors, LED’s, semiconductors and other miscellaneous components.   Again spring terminals are used to connect the components together.






















Vintage Science Fair Electronic Project Kits


I have recently acquired the following. 
  • 65 in One Electronic Project Kit (circa 1972)
  • 75 in One Electronic Project Kit (circa 1976)
  • 150 in One Electronic Project Kit (circa 1976)
  • 160 in One Electronic Project Kit (circa 1982)
These kits have a good selection of resistors, capacitors and germanium transistors on the early kits only the later kits had a single silicon transistor. The later kits included a 7 Segment display and some sort of integrated circuit.


























Saturday 2 April 2016

Croc clip connector for the Raspberry Pi


Andrew Gale (@pocketmoneytron) from pocketmoneytronics recently sent me a couple of his brilliant croc clip connector boards for the Raspberry Pi he had made.

The board is very simple, well designed and has three large holes so you can easily connect crocodile clips to the board. GPIO pins 23, 24 and 25 have been brought out to the edge via a series resistor along with a ground connection so that LED's can be attached.

I used a simple Python script using the new GPIO Zero library to test out the board, which is really easy to use and the boards work well. Overall I am very impressed with this great project.

Croc clip Parts

Croc clip PCB Assembled


Traffic Lights