The Poor Serbian Man's Optical Attenuator - Page 3

23rd October 2010, 07:00 AM
Zen Mod and Spavleski diyAudio Member Join Date: Oct 2010	The Poor Serbian Man's Optical Attenuator A gadget made by Spavleski & Zen Mod Article scribed by Zen Mod Click here to read the entire article Last edited by Variac; 2nd April 2011 at 12:15 AM.

29th November 2010

wabun

diyAudio Member

Sorry as I still have another doubt, the split power supply which use LM317 for +ve and LM337 for -ve rails constant current source has different current output, although I constructed them with 22Ohms current limit resistor, but I got ~ 46mA at +ve rail and ONLY ~ 16 mA at -ve rail. By calculation I shud get ~ 56mA from each rail.. why this happen ? :-( tot LM337 faulty, but still the same even replaced with new IC.. I measure the current by connecting 100 Ohms resistor ( serial to ammeter)
and shorted the output ( LM 337 / LM317 ) reference to ground.. thanks

29th November 2010

Zen Mod

diyAudio Member

lets continue talk about issues in proper place ;

https://www.diyaudio.com/forums/analo...e-control.html

this article interface isn't so convenient as we are used to - in threads , where we can post images easily

my Papa is smarter than your Nelson !
clean

thread;

Cook Book;PSM LS Cook Book;Baby DiyA ;Mighty ZM's Bloggg;Papatreasure;Papa...© by Mighty ZM

29th November 2010

spavleski

diyAudio Member

continue here https://www.diyaudio.com/forums/analo...ml#post2381190

PSMLS CookBook by ZM

18th June 2012

precision1

diyAudio Member

Optical Attenuators

Thanks for another wonderful article. Where else could anyone get that kind of information in such a perfect way of writing? I’ve a presentation next week, and I’m on the look for such info.

A gadget made by Spavleski & Zen Mod Article scribed by Zen Mod

A gadget made by Spavleski & Zen Mod
Article scribed by Zen Mod