how to wire VU meter on amplifier? - diyAudio
Go Back   Home > Forums > Design & Build > Parts

Parts Where to get, and how to make the best bits. PCB's, caps, transformers, 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 30th January 2009, 04:01 AM   #1
diyAudio Member
 
Join Date: Dec 2007
Default how to wire VU meter on amplifier?

hi there

i need on wiring the vu meter aleph-x
http://cgi.ebay.com/ws/eBayISAPI.dll...m=250362103720

is this just parallel to the speaker binding post? or need some kind or voltage divider?

my speaker is 8 ohm

thx for the help

erwin
  Reply With Quote
Old 30th January 2009, 04:18 AM   #2
diyAudio Member
 
hifimaker's Avatar
 
Join Date: Oct 2003
Location: San Jose
That meter is hilarious! The Chinese must be ripping off Nelson in high style to have to make clone meters.

There's a chance these are current meters like in Nelson's X amps. Wouldn't VU meters have their indicator arms resting to the left side when off? These seem to sit at the midpoint to show current in one direction or the other.

-David
  Reply With Quote
Old 30th January 2009, 07:02 PM   #3
Netlist is offline Netlist  Belgium
diyAudio Moderator Emeritus
 
Netlist's Avatar
 
Join Date: Jan 2003
Best to wire it between the + and - of the power supply.
The higher the voltage, the nicer the swing of the meter.
  Reply With Quote
Old 30th January 2009, 07:26 PM   #4
gl is offline gl  United States
diyAudio Member
 
Join Date: Dec 2003
Location: Sierra Foothills - California
Speaking as an Aleph-X owner I must admit that it seems strange looking at these things sitting there up for sale. How many of us owners would want such a distraction? I sure don't. How many of us would even know how to make it do anything useful? I sure don't. How many of us are going to buy these? I sure won't.

Graeme
  Reply With Quote
Old 30th January 2009, 08:37 PM   #5
diyAudio Member
 
jackinnj's Avatar
 
Join Date: Apr 2002
Location: Llanddewi Brefi, NJ
I note that the seller has multiple, multiple positives from the same entities -- all for baby sleepwear.
  Reply With Quote
Old 31st January 2009, 03:15 AM   #6
diyAudio Member
 
Join Date: Dec 2007
Quote:
Originally posted by Netlist
Best to wire it between the + and - of the power supply.
The higher the voltage, the nicer the swing of the meter.
hi Netlist

is it on primary or secondary side of the power supply?

hi all

when i buy this thing to fun, i got no idea if this is fake or not. we get what we pay for. if this is fake one then certainly wont last or maybe wont work. we will know when i received it

plus i am new to diy. hence anything thats fake or not i dont know of it. i do not even know how much aleph-x stuff worth that at this price its consider fake. i just know that those meter looks like an old amp indicator for music is playing without the need to hook up the speaker. hence i jump on the bid and its cheap. i wont lose my sleep if i toast it tho. there is also some wima caps 20pcs for only $2 starting bid. is this consider fake as well? who knows.

thx for the help guys and happy listening
  Reply With Quote
Old 1st February 2009, 10:44 AM   #7
poynton is offline poynton  United Kingdom
diyAudio Member
 
poynton's Avatar
 
Join Date: Mar 2005
Location: A life on the ocean waves when I'm not at home in N. Wales (but I'm not Welsh so no sheep jokes!)
Quote:
Originally posted by jackinnj
I note that the seller has multiple, multiple positives from the same entities -- all for baby sleepwear.

I believe some Chineese vendors have very large extended families - hence the need to sell large quantities of babyware.

It has nothing to do with boosting vendor ratings usingbogus sales.

Andy
__________________
If it ain't broke, break it !! Then fix it again. It's called DIY !
  Reply With Quote
Old 1st February 2009, 11:48 AM   #8
Netlist is offline Netlist  Belgium
diyAudio Moderator Emeritus
 
Netlist's Avatar
 
Join Date: Jan 2003
milen,

I was joking. If you hook it up as I said you will fry it.
Seriously, ask the seller. If he doesn't know, don't buy it.

/Hugo
  Reply With Quote
Old 1st February 2009, 02:33 PM   #9
diyAudio Member
 
Join Date: Dec 2007
hi Netlist

lol though you are serious. thx tho for the reply
  Reply With Quote
Old 1st February 2009, 03:30 PM   #10
diyAudio Member
 
Steerpike's Avatar
 
Join Date: Jan 2006
Location: Johannesburg, South Africa
I don't see any way this meter could be useful for audio, with its "centre-zero" design - other than as a tuning meter.

There were some Philips portable record player in the 1960s - when stereo was a new thing - that had left/right meters on them to tell you visually which channel most sound was comming from! Hardly useful.

The ad give no indication whatsoever of its FSD current, so you don't know if its in the region of microamps or amps - that makes it impossible to predict how it could be used.
  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
VU meter amplifier/rectifier. mbates14 Parts 18 4th November 2008 11:55 AM
meter on the DIY amplifier faceplate? gychang Parts 17 1st November 2007 04:37 AM
Deep Cryogenically Treated Silver Wire 0.2mm 300 Meter Drum! mozfet Swap Meet 0 26th July 2003 11:41 AM


New To Site? Need Help?

All times are GMT. The time now is 11:13 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