ebeowulf17
- Joined Aug 12, 2014
- 3,307
If you're uncertain about parts selection and you're ok with ordering from Mouser or Digi-Key online, as opposed to buying locally, I can get you a more specific parts list.
As for the soldering, I wouldn't trust myself to but those pins either! You won't have to. The plan is to connect both wires in that short stretch of vertical trace at number 221, just below the chip. Either scratching off insulation to get to the trace, or probably just popping 221 off and using its top solder pad for the 555 output and using the next solder joint down for the gate input.
There are a few ways to attack it, and it will involve delicate work with a tiny knife, but it won't be as bad as soldering those chip pins!
As for the soldering, I wouldn't trust myself to but those pins either! You won't have to. The plan is to connect both wires in that short stretch of vertical trace at number 221, just below the chip. Either scratching off insulation to get to the trace, or probably just popping 221 off and using its top solder pad for the 555 output and using the next solder joint down for the gate input.
There are a few ways to attack it, and it will involve delicate work with a tiny knife, but it won't be as bad as soldering those chip pins!