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 ;

Poor Serbian Man Optical Volume Control

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 !
tnx to

clean

thread ;

Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; Mighty ZM's Bloggg;I'm dumb

29th November 2010

spavleski

diyAudio Member

continue here Poor Serbian Man Optical Volume Control

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.

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

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