1
vote
2answers
66 views

How does one reuse a thick film circuit?

I have a thick film circuit from a calculator that I want to use. How can I attach external connections to the sheet? I tried simply using the circuit as a contact in between a battery positive and an ...
2
votes
1answer
68 views

Heating and Chilling ICs instantly from 200C to 0C? Does it damage the silicon inside?

I soldered VCXO oscillator and suddenly tried to cool it down with a cooler spray. Do you think that sudden cooling and heating damages the chip. The heating and cooling were well within the spec ...
1
vote
1answer
312 views

Soldering IC directly to stripboard

I picked up my first "from-scratch" DIY electronics project in a long time, building a 2-tone door bell on stripboard with a basic 555 circuit. For the most part everything went well. I assembled the ...
1
vote
5answers
319 views

Is it possible to solder or otherwise connect to this camera chip by hand?

[Disclaimer: I'm a beginner.] I ordered this OV7740 camera chip from Digikey without really researching it, thinking maybe I could connect to it with a microcontroller. (I have only Arduino at this ...
3
votes
1answer
454 views

How to start implementing your own computer? [closed]

The question As a first step I need to select a circuit board, CPU & RAM/ROM chips and I/O connectors. How do I select a board that can interconnect all these components? Perhaps you could give ...
4
votes
3answers
337 views

Using ICs from old computer hardware and such

Like many other users of this site, I have tons of old computer parts laying around my house. Often I enjoy looking up the numbers on the ICs on these old parts to see what they do, and every now and ...