Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Pass Labs This forum is dedicated to Pass Labs discussion.

Resistors & doubts ;(
Resistors & doubts ;(
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 15th May 2003, 08:54 AM   #11
peranders is offline peranders  Sweden
Electrons are yellow and more is better!
diyAudio Member
 
peranders's Avatar
 
Join Date: Apr 2002
Location: Göteborg, Sweden
Resistors & doubts ;(
Quote:
Originally posted by Nelson Pass
I wouldn't worry about the 5% on the Vishays, even if they
were really 5%. More likely they are 1% or better.

As to the .4 watt BCCs, they look awfully tiny....

I say, avoid them if you don't have space problems. They are so easy to fire up. Normal 0.6 W is "normal" for me. They have the same size as 0.25 W carbon, 2.5 x 6.5 mm

0.6 watts is VERY hot in these small resistors and 0.4 watts is equally hot in these even smaller types.

I calculate for max 0.3-0.4 watts into 0.6 watts resistors.
__________________
/Per-Anders (my first name) or P-A as my friends call me
Group buy: DCT03 DC trap for big toroidal transformers. Sign up for interest HERE. 27 pcb's in interest.
  Reply With Quote
Old 15th May 2003, 08:55 AM   #12
Mad_K is offline Mad_K  Norway
diyAudio Member
 
Mad_K's Avatar
 
Join Date: Sep 2002
Location: Norway
Maybe they're a little wimpy

I always use Firstronics RM0207S in all my projects, they're rated 0,6W @70'C 1% +- 50ppm/'C, -55 - 155'C. Still I believe you could use 0,4W, but considering that 0,6W parts costs nearly nothing, why take the chance? Mr Pass is most likely correct that the Vishays are more like 1%, but it wouldn't hurt to check (you'll atleast sleep better at night ) I measured my Caddock MP930 (1%), and they where even tighter in tolerance
Attached Images
File Type: jpg l5450.jpg (2.4 KB, 271 views)
__________________
Mads K
  Reply With Quote

Reply


Resistors & doubts ;(Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Doubts regarding a 1Watt FM TX Kit xitronics Solid State 8 23rd May 2007 09:19 PM
First-Timer Doubts: K-12 or Gainclone? sansbury Tubes / Valves 9 26th February 2007 09:53 PM
I had serious doubts (Gainclone powered LT Sub) and... PaulHilgeman Multi-Way 2 6th June 2003 04:22 AM


New To Site? Need Help?

All times are GMT. The time now is 08:28 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki