General > General Technical Chat

"Octopus" curve tracer: component choice question

(1/2) > >>

eti:
Is it important that the resistors in this circuit are 1/2 watt (except the 1 watt one)? I only have 1/4 watt - I know I can double up, but want to know if it is necessary? Thanks!

bob91343:
Even if all the 6.3V were across the 560 Ohm resistor, the dissipation would be about 80 milliwatts so don't worry about it.  1/8 Watt resistors would even be okay.

nali:
I think someone somewhere got their Ohm's Law calculations wrong for the 1K resistor too... it should be 1mW not 1W!

eti:

--- Quote from: nali on December 29, 2021, 09:42:27 pm ---I think someone somewhere got their Ohm's Law calculations wrong for the 1K resistor too... it should be 1mW not 1W!

--- End quote ---

 ;D Hehe, thanks!

eti:

--- Quote from: bob91343 on December 29, 2021, 09:10:45 pm ---Even if all the 6.3V were across the 560 Ohm resistor, the dissipation would be about 80 milliwatts so don't worry about it.  1/8 Watt resistors would even be okay.

--- End quote ---

Much obliged, thanks for taking the time to help. Happy 2022, when it arrives! :-+ :D

Navigation

[0] Message Index

[#] Next page

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod