A75 questions. - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Solid State Talk all about solid state amplification.

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
Thread Tools Search this Thread
Old 8th November 2001, 04:13 AM   #1
JoeBob is offline JoeBob  Canada
diyAudio Member
JoeBob's Avatar
Join Date: Nov 2001
Location: Montreal, Canada
Alright, I've heard that the passlabs A75 is simple enough and is a good design. My question, is how much do you think it would cost me to build? I found the PCBs for 9$ and 15$ for the PSU and the amps respectively. I'd build the case myself, as well as the heatsinks (I've been building CPU heatsinks for a while (overclocker ones, very LARGE and efficient, ie high quality copper ones, amp heatsinks should be a nobrainer). So I'm just asking for a ballpark figure for the electronic components. Because I'm only a poor student, and if it racks up a huge bill, then I'd have to unfortunately have to put this project on the back burner for a while (just built some expensive speakers, so I'm not swimming in cash). Thanks...
  Reply With Quote
Old 8th November 2001, 12:32 PM   #2
diyAudio Member
Join Date: Aug 2001
for starters...do check out the prices for the MOSFETS as you'll need more than necessary for matching purposes.

Probably the most expensive hardware in the A75 could be the transformers, since you're making the housing and heatsinks yourself. But do shop around for surplus parts (e.g large caps or transformers) as they're much cheaper than buying new. Be prepared to spend a few hundred dollars.
  Reply With Quote
Old 9th November 2001, 04:53 PM   #3
diyAudio Member
Join Date: Aug 2001
Location: Indiana
Check out avnetmarshall.com and felectronics.com for good prices on mosfets for the A75 if you can get a small enough quantity. If you can't afford the A75 check out maybe the Aleph 3 or the Aleph 5 (service manuals are on the passlabs website), the circuits there are simple as well.
  Reply With Quote
Old 12th November 2001, 06:59 PM   #4
The one and only
Nelson Pass's Avatar
Join Date: Mar 2001
Also, you can easily build the A75 with half as many
outputs, and it still works great.
  Reply With Quote


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
Some Quad els57 questions! - Novice Questions! Fanuc Planars & Exotics 13 5th December 2007 09:26 AM
PSU for QSC amp questions rkc7 Parts 5 10th November 2005 05:18 PM
Last questions about this Madmike2 Multi-Way 9 13th June 2005 11:12 PM
Questions, questions, from newb DIYer Phatman91624 Multi-Way 41 3rd August 2002 02:52 AM

New To Site? Need Help?

All times are GMT. The time now is 02:27 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2