How are you guys?
So... I'm buying for my first pedal and I realize that they are separated by 1/2w, 1/4w and 1w the 1w ones are more expensive.
As I plan to acquire more experience to make my final pedal the EHX CLONE theory, I plan to first make a fuzz pedal that will be powered by a 9V battery.
So... What ''power'' resistor I get?
Or you could begin your study of pedal building by reading a LOT of plans and noting what parts they specify.
The whole pedal usually takes much less than 1 Watt and less than half of that in the resistors, much much less in any one resistor. In 1970, 1/2W was cheapest, today 1/4 and even 1/8W are cheaper and fine for 99% of pedal work.
What Paul said.
If you are wondering what's most common among the DIY community - I think the answer is 1/4 watt.
Physical size is also a factor. Most PCB layouts (Vero/Perf also to a degree) are designed for 3LS resistors (there are sometimes exceptions for very specific higher power handling circuit sections but this is unusual). For the uninitiated LS means lead spacing and 3 is the number of standard spacing increments which is 0.1 inch or 2.5mm. So you want your resistors - whichever power - to be able to fit into their position on the board that has the holes 0.3 inch or 7.5mm apart. 1/4 watt or 1/8 watt typically fit, but 1/2 watt and higher probably won't.
If you are doing your own layout, then you can accommodate any size you like.
Also - modern resistor technology is improving - I've recently bought 0.6W resistors that were no bigger than typical 1/4W and 1/4W that were about the size of typical 1/8W resistors. If you are unsure, make sure you check the data sheets.
Quote from: GGBB on September 14, 2021, 05:26:39 PM
What Paul said.
If you are wondering what's most common among the DIY community - I think the answer is 1/4 watt.
Physical size is also a factor. Most PCB layouts (Vero/Perf also to a degree) are designed for 3LS resistors (there are sometimes exceptions for very specific higher power handling circuit sections but this is unusual). For the uninitiated LS means lead spacing and 3 is the number of standard spacing increments which is 0.1 inch or 2.5mm. So you want your resistors - whichever power - to be able to fit into their position on the board that has the holes 0.3 inch or 7.5mm apart. 1/4 watt or 1/8 watt typically fit, but 1/2 watt and higher probably won't.
If you are doing your own layout, then you can accommodate any size you like.
Also - modern resistor technology is improving - I've recently bought 0.6W resistors that were no bigger than typical 1/4W and 1/4W that were about the size of typical 1/8W resistors. If you are unsure, make sure you check the data sheets.
So can I use good 1/4w resistors on my pedal?
Quote from: PRR on September 14, 2021, 04:22:08 PM
Or you could begin your study of pedal building by reading a LOT of plans and noting what parts they specify.
The whole pedal usually takes much less than 1 Watt and less than half of that in the resistors, much much less in any one resistor. In 1970, 1/2W was cheapest, today 1/4 and even 1/8W are cheaper and fine for 99% of pedal work.
So can I use good 1/4w resistors on my pedal?
Where do I start my studies?
Yes you can use 1/4 watt or even 1/8 watt in any pedal that doesn't have something crazy like tubes in it. The smaller values are smaller and sometimes that fits better. The larger have thicker wire and sometimes that helps, like sticking into a breadboard.
Several places talk about components and pedals.
Beavis has links to kits you can buy of common values
http://beavisaudio.com/techpages/buyingparts/ (http://beavisaudio.com/techpages/buyingparts/)
The FAQ for this forum is good too:
https://aronnelson.com/diywiki/index.php/Frequently_Asked_Questions_(DIY_FAQ)#RESISTORS (https://aronnelson.com/diywiki/index.php/Frequently_Asked_Questions_(DIY_FAQ)#RESISTORS)
You would do well to check out all the links at the top of the forum page!
Quote from: idy on September 14, 2021, 07:46:27 PM
Yes you can use 1/4 watt or even 1/8 watt in any pedal that doesn't have something crazy like tubes in it. The smaller values are smaller and sometimes that fits better. The larger have thicker wire and sometimes that helps, like sticking into a breadboard.
Several places talk about components and pedals.
Beavis has links to kits you can buy of common values
http://beavisaudio.com/techpages/buyingparts/ (http://beavisaudio.com/techpages/buyingparts/)
The FAQ for this forum is good too:
https://aronnelson.com/diywiki/index.php/Frequently_Asked_Questions_(DIY_FAQ)#RESISTORS (https://aronnelson.com/diywiki/index.php/Frequently_Asked_Questions_(DIY_FAQ)#RESISTORS)
You would do well to check out all the links at the top of the forum page!
I plan to build these two pedals, both with 9v batteries
https://tagboardeffects.blogspot.com/2011/02/zvex-woolly-mammoth-vero.html (https://tagboardeffects.blogspot.com/2011/02/zvex-woolly-mammoth-vero.html)
https://tagboardeffects.blogspot.com/2013/12/proco-rat-2.html (https://tagboardeffects.blogspot.com/2013/12/proco-rat-2.html)
I think 1/4w would take care of them
:-\