HELP : what wattage for resistor ? - diyAudio
Go Back   Home > Forums > Source & Line > Analog Line Level

Analog Line Level Preamplifiers , Passive Pre-amps, Crossovers, etc.

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 24th December 2012, 03:22 PM   #1
diyAudio Member
 
Join Date: Nov 2006
Default HELP : what wattage for resistor ?

Dear all,
I am building up a phono/line/hearphones preamplifier based on the ptsoundlab schematics.

I putted the schematics as an attachment.
It took me time to purchase all the right parts and I am already there.

Regarding resistors, i am thinking about Kiwame, and i am wondering which wattage to choose for the resitors with no indication on the schematics...
My gess is : Is it possible to fit 2 watt resistor for all the resistors ? I beleive I can put some 5 watts everywhere but the price would be much higher...

Thank you for your precious help. I'll be glad to share my experience on building this nice pretty thing with who ever would need it.
Attached Images
File Type: jpg output.jpg (82.8 KB, 69 views)
File Type: jpg riaarca10p.jpg (87.5 KB, 65 views)
  Reply With Quote
Old 24th December 2012, 03:33 PM   #2
diyAudio Member
 
Frank Berry's Avatar
 
Join Date: Sep 2003
Location: Midland, Michigan
Half-watt unless the schematic shows otherwise.
__________________
Frank
  Reply With Quote
Old 24th December 2012, 04:04 PM   #3
diyAudio Member
 
Join Date: Nov 2006
Thank you for such a quick answer !

I have another question, i grab the opportunity
Here is again the schematics of the Stage Line.
You'll notice, on the ECC99 zone, there is a 0,5uf paperoil capacitor with no voltage indication.
I bought this product (see attachment): 0,5uf, 160v PIO.

Would you say this high voltage could cause any problem ?
Attached Images
File Type: jpg KGrHqFgsE0vv1DUMBNuuvEz9Q_3.JPG (58.5 KB, 55 views)
File Type: jpg output.jpg (82.8 KB, 55 views)
  Reply With Quote
Old 24th December 2012, 04:54 PM   #4
diyAudio Member
 
indianajo's Avatar
 
Join Date: Jan 2010
Location: Jeffersonville, Indiana USA
Probably okay. Low frequency circuits like audio, the extra size doesn't usually cause much inductance problems. This spot shouldn't go above 50v, or whatever the performance chart on the tube shows the grid voltage pinching off gain.
__________________
Dynakit ST70, ST120, PAS2,Hammond H182(2 ea),H112,A100,10-82TC,Peavey CS800S,1.3K, SP2-XT's, T-300 HF Proj's, Steinway console, Herald RA88a mixer, Wurlitzer 4500, 4300
  Reply With Quote
Old 24th December 2012, 05:50 PM   #5
diyAudio Member
 
Join Date: Nov 2006
ok thanks
  Reply With Quote
Old 24th December 2012, 07:07 PM   #6
Pano is offline Pano  United States
diyAudio Moderator
 
Pano's Avatar
 
Join Date: Oct 2004
Location: Kona, Hawaii
Blog Entries: 4
Fredericasse, do you have permission from ptsoundlab.com to post those schematics here? Are they copyrighted?
  Reply With Quote
Old 25th December 2012, 12:36 AM   #7
diyAudio Member
 
Join Date: Nov 2006
HI
if the website would still existing, i would not have post it !!!
  Reply With Quote
Old 25th December 2012, 12:21 PM   #8
diyAudio Member
 
Join Date: Nov 2006
Do you think it is interresting to separate the power supply from the preamp ?
  Reply With Quote

Reply


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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Resistor wattage anyone? serengetiplains Parts 2 4th October 2011 12:53 AM
Resistor wattage? losacco Tubes / Valves 4 23rd March 2010 08:33 AM
resistor wattage? jarthel Pass Labs 1 27th June 2007 05:14 AM
zobel resistor wattage saramac Multi-Way 1 14th April 2007 10:17 PM
Resistor wattage ratings whitey_woltrap Multi-Way 0 22nd March 2002 08:20 PM


New To Site? Need Help?

All times are GMT. The time now is 03:28 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2