Go Back   Home > Forums > Source & Line > Analogue Source

Analogue Source Turntables, Tonearms, Cartridges, Phono Stages, Tuners, Tape Recorders, 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 11th February 2009, 10:34 AM   #1
diyAudio Member
 
Join Date: Jun 2007
Default AR XA 220V to 110V

Have rebuilt an AR XA but seem to be having a problem with the power supply/voltage selector switch. Can anyone supply me with a with a circuit diagram for stepping our local 220v down to 110v at 50hz? Then maybe I can get rid of the overly complex and possibly faulty selector switch and simplify the whole thing somewhat....

Thanks
  Reply With Quote
Old 13th February 2009, 01:04 AM   #2
tedr is offline tedr  United States
diyAudio Member
 
Join Date: Jul 2006
A 2:1 step down transformer is all you need, they are probably available from electronic parts suppliers in SA. Alternatively have you tried looking for a mains adapter? Comes with input and output connectors already fitted (for safety) and probably not much more than a transformer. You need very little power for a TT motor, probably less than 50Watts, maybe even as little as 10Watts.

You could also seek guidance at this website
http://www.vinylengine.com/phpBB2/vi...2bbccc8980e6a6

Ted
  Reply With Quote
Old 13th February 2009, 01:08 PM   #3
sreten is offline sreten  United Kingdom
diyAudio Member
 
Join Date: Nov 2003
Location: Brighton UK
Hi,

All you need to do is ~ double the value of the supply resistors
and ~ half the value of the phase shifting capacitor (or leave it).
Just make sure the capacitor has the correct voltage rating.

Many 240VAC turntables use 110V synchronous motors, e.g. LP12.

Search .....

/sreten.
  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
another 220v to 110v question amoncarter Parts 7 11th July 2010 09:11 PM
110v or 220v, how can you tell? fjmart134 Tubes / Valves 2 8th June 2009 10:18 PM
VELODYNE 110V to 220V iblieve Power Supplies 1 11th May 2009 07:25 PM
How to convert 220V to 110V??? Real Prober Digital Source 4 5th November 2004 07:02 AM
Help: conversion from 110v to 220v Russell Sit Solid State 13 5th December 2002 08:28 AM


New To Site? Need Help?

All times are GMT. The time now is 11:11 AM.


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