Go Back   Home > Forums > General Interest > Everything Else

Everything Else Anything related to audio / video / electronics etc) BUT remember- we have many new forums where your thread may now fit! .... Parts, Equipment & Tools, Construction Tips, Software Tools......

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 8th September 2005, 12:34 PM   #1
peterr is offline peterr  Netherlands
diyAudio Member
 
peterr's Avatar
 
Join Date: Apr 2002
Location: Amsterdam
Default DIY air compressor. help needed

Lately I have been looking for ways to improve my air bearing Ladegaard tone arm. One of the most obvious conclusions is that I need a heftier compressor than the aquarium pump I have used to date. Since I like to DIY my audio stuff whenever possible I want to try and make my own. It needs to be in the best Frugal-fi tradition
I have done a little Google-research and the most promising route seems to use an old refrigerator pump. like this one Such a pump should be easy enough to find but what else do I need and where could I get it?
Does anyone have experience making such a beast?
What kind of pressure can it reliably produce?
Any tips are very much appreciated.
__________________
Keep an open mind. It helps.
Peter
  Reply With Quote
Old 8th September 2005, 12:43 PM   #2
dnsey is offline dnsey  United Kingdom
diyAudio Member
 
Join Date: Mar 2004
Location: Shropshire, England
Those pumps can produce something like 100 psi, albeit al low volume - I've used them for pumping up tyres with no problems.
However, I understand that the oil in which they run can become dangerously acidic, and cause very nasty skin burns - what it would do to your precision engineering I hate to think!
Most are also only intermittently rated, and will be likely to overheat during the playing of an LP.
How about an airbrush compressor instead?
  Reply With Quote
Old 8th September 2005, 12:58 PM   #3
peterr is offline peterr  Netherlands
diyAudio Member
 
peterr's Avatar
 
Join Date: Apr 2002
Location: Amsterdam
Quote:
How about an airbrush compressor instead?
the way I understand it airbrush compressors are nothing other than a refrigerator pump with a few bits added
__________________
Keep an open mind. It helps.
Peter
  Reply With Quote
Old 8th September 2005, 01:01 PM   #4
dnsey is offline dnsey  United Kingdom
diyAudio Member
 
Join Date: Mar 2004
Location: Shropshire, England
Yes, some are just that, but with the important addition of an oiltrap ( and perhaps using different oil - I don't know).
I was thinking, though, of the little diaphragm pumps.
  Reply With Quote
Old 8th September 2005, 01:10 PM   #5
diyAudio Member
 
Join Date: Jan 2003
Location: NYS
Certainly you could do it. The first shop compressor I had was home built using a walk-in cooler compressor, 3/4 HP motor, and a used bottled gas tank. It was comparatively cheap 30 years ago. The trade off between it and commercial units was slow recovery time.

Any compressor needs a pressure relief valve, a pressure cut off/on switch that bleeds the incoming line so the compressor doesn't have to start under a load. A drain in the storage tank is also important.

Installing these three items and accompanying fittings might run the price higher than a small commercial unit. I see them at the big box stores pretty cheap lately, especially the small ones.
__________________
onasis
  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
Tube Compressor Ahmad_tbp Tubes / Valves 42 1st March 2010 03:49 PM
Compressor / Limiter whoandcar Solid State 6 12th May 2008 03:50 AM
Compressor for preamp impsick Chip Amps 4 24th March 2007 04:58 PM
This compressor needs more controlls Domplotz Instruments and Amps 2 19th September 2006 10:04 PM
Compressor diy XXLPeanut Instruments and Amps 5 14th June 2006 10:55 PM


New To Site? Need Help?

All times are GMT. The time now is 02:50 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