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Avoiding Passive-Component Pitfalls, Grant and Wurcer

Posted: Mon Mar 06, 2017 8:07 am
by mediatechnology
"Avoiding Passive-Component Pitfalls," Doug Grant, Scott Wurcer, Analog Dialog, 17-2, 1983.
The wrong passive component can derail even the best op amp or data converter. Here are some basic traps to watch out for.
"Avoiding Passive-Component Pitfalls," Doug Grant, Scott Wurcer, Analog Dialog, 17-2, 1983. https://www.proaudiodesignforum.com/ima ... 2_1983.pdf

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"Avoiding Passive-Component Pitfalls," Doug Grant, Scott Wurcer, Analog Dialog, 17-2, 1983. Thermal gradients create significant thermoelectric circuit errors.

Re: Avoiding Passive-Component Pitfalls, Grant and Wurcer

Posted: Wed Mar 08, 2017 11:10 am
by emrr
Good stuff.

I recall a manufacturer of simple class A tube listening amps changing to PCB construction because they found it impossible to use point to point techniques and deliver consistent results on the bench.

Re: Avoiding Passive-Component Pitfalls, Grant and Wurcer

Posted: Tue May 16, 2017 1:55 am
by NOON
So does this imply that if you have a vertical board (e.g. front panel mounted, eurorack or 500 series style) you should be mounting the resistors 'tall' instead of flat on the board? ;)

Re: Avoiding Passive-Component Pitfalls, Grant and Wurcer

Posted: Tue May 16, 2017 5:20 am
by mediatechnology
So does this imply that if you have a vertical board (e.g. front panel mounted, eurorack or 500 series style) you should be mounting the resistors 'tall' instead of flat on the board? ;)
Thank you for joining us!
If they are horizontal and mounted flat on the vertical front panel board the thermal gradient wouldn't develop end-to-end.

Re: Avoiding Passive-Component Pitfalls, Grant and Wurcer

Posted: Wed May 17, 2017 1:57 pm
by JR.
Thermal gradients in resistors is a bit too tweaky for typical DIY electronics. Kind of a true but so what...

Probably a good article.

JR