Anonymous
11/2/2025, 1:40:55 AM
No.2954675
>>2954523
Reflow plate. If you can’t place parts with tweezers, a pick-and-place machine.
>>2954549
>it's miles better than any leaded solder i've used
I’ve used my share of lead-free alloys and never had such an experience other than with bismuth solder. How dull is the finish after a well-fluxed joint compared to leaded? And does it need more heat to melt? It’s that last one that gets me, needing to have your iron in place for 50% longer to get it to melt means more heat into the substrate and surrounding components. And it’s significant if you’re fighting against a big copper pour or an otherwise thermally massive component like a D2PAK. How many watts are you packing?
>>2954553
Go for it. The first stage is building up an intuition for how circuits are constructed and how that correspond to how they function. There are simple mathematical equations that describe how electronics functions, but the intuition is more important. Build the simple examples, but try to understand them by messing about with component values and such. Once you’ve got the basis for that intuition, you can start designing your own circuits. You’ll need to use these simple equations in this design phase, it’s pretty straightforward. They’ll be shitty at first, but those flawed early circuits are great learning experiences. They’re also usually pretty cheap lessons, because frying a transistor or two is just a few cents down the drain.
Good luck!
Reflow plate. If you can’t place parts with tweezers, a pick-and-place machine.
>>2954549
>it's miles better than any leaded solder i've used
I’ve used my share of lead-free alloys and never had such an experience other than with bismuth solder. How dull is the finish after a well-fluxed joint compared to leaded? And does it need more heat to melt? It’s that last one that gets me, needing to have your iron in place for 50% longer to get it to melt means more heat into the substrate and surrounding components. And it’s significant if you’re fighting against a big copper pour or an otherwise thermally massive component like a D2PAK. How many watts are you packing?
>>2954553
Go for it. The first stage is building up an intuition for how circuits are constructed and how that correspond to how they function. There are simple mathematical equations that describe how electronics functions, but the intuition is more important. Build the simple examples, but try to understand them by messing about with component values and such. Once you’ve got the basis for that intuition, you can start designing your own circuits. You’ll need to use these simple equations in this design phase, it’s pretty straightforward. They’ll be shitty at first, but those flawed early circuits are great learning experiences. They’re also usually pretty cheap lessons, because frying a transistor or two is just a few cents down the drain.
Good luck!