Lightspeed Attenuator a new passive preamp - Page 62 - 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 26th April 2007, 06:34 AM   #611
OzMike is offline OzMike  Australia
diyAudio Member
 
Join Date: Apr 2007
George, I'd be interested in one of your units for a project I'm building. Perhaps you could email me.

Mike
  Reply With Quote
Old 27th April 2007, 08:06 AM   #612
Harry3 is offline Harry3  Australia
diyAudio Member
 
Join Date: Mar 2005
Location: Sydney - Australia
Default Re: A further improvement....

Quote:
Originally posted by Dr.H
Based on recent posts, I fitted a 47uF, 6.3V Murata ceramic cap to the LED leads on the LDR. It seems that this has brought a further improvement in the performance of the pot.

Ryan

Murata ceramic caps - best of the best

  Reply With Quote
Old 28th April 2007, 07:51 AM   #613
diyAudio Member
 
georgehifi's Avatar
 
Join Date: Sep 2003
Location: Manly Australia (Jewel of the Pacific)
Send a message via MSN to georgehifi
ark, I tried to respond to your PM to me with your return email address but your virus blocking or firewall is tied up tighter than a fishes a---hole nothing gets through, not even hello. I'm over it.

Cheers George
__________________
Avatar : Production Lightspeed Attenuator
www.lightspeedattenuator.com
  Reply With Quote
Old 30th April 2007, 06:59 PM   #614
flyboi is offline flyboi  Malaysia
diyAudio Member
 
Join Date: Dec 2004
Location: .
Send a message via ICQ to flyboi
Hi guys!

I did try the caps across the leds. It's well worth the efforts. Thanks for the tips!


Cheers!

Eddy.
  Reply With Quote
Old 2nd May 2007, 01:24 PM   #615
zarate is offline zarate  United Kingdom
diyAudio Member
 
Join Date: Feb 2006
Location: West Sussex
Default Lightspeed

Hello GeorgeHifi,
I'd really appreciate some information on your pre-built Lightspeeds.
  Reply With Quote
Old 2nd May 2007, 05:17 PM   #616
Daveis is offline Daveis  United States
diyAudio Member
 
Join Date: Dec 2003
Location: Des Moines, IA
Default Re: Lightspeed

Quote:
Originally posted by zarate
Hello GeorgeHifi,
I'd really appreciate some information on your pre-built Lightspeeds.
And especially, any 6 or 8 channel ones that were built.
  Reply With Quote
Old 2nd May 2007, 05:34 PM   #617
Badge is online now Badge  United States
diyAudio Member
 
Join Date: May 2004
Location: Oregon
I placed a barrier of ERS cloth between the LED side and the rest of the circuit. It slides between the LDR and the noise blocking caps. Seemed to help a bit.
__________________
The freaks stick together, they are a tight old crew
  Reply With Quote
Old 2nd May 2007, 08:00 PM   #618
diyAudio Member
 
georgehifi's Avatar
 
Join Date: Sep 2003
Location: Manly Australia (Jewel of the Pacific)
Send a message via MSN to georgehifi
Default Re: Re: Lightspeed

Quote:
Originally posted by zarate
Hello GeorgeHifi,
I'd really appreciate some information on your pre-built Lightspeeds.

Quote:
Originally posted by Daveis


And especially, any 6 or 8 channel ones that were built.

Send me a PM with your email and I now have collected a bit of propaganda I can send.

Cheers George
__________________
Avatar : Production Lightspeed Attenuator
www.lightspeedattenuator.com
  Reply With Quote
Old 3rd May 2007, 06:54 AM   #619
diyAudio Member
 
Join Date: Apr 2002
Default Murata caps

Harry3 etal

Murata caps are available as samples, ask your local representative.

BTW, I double checked and the impressions I posted were based on a simple double regulated power supply and not the ALW super low noise Jung type supply I thought I had in place. Perhaps that is why the Murata cap mod made such a difference. I'll try the ALW (in the next 3 weeks or so) and post results here.

Ryan
  Reply With Quote
Old 3rd May 2007, 11:20 AM   #620
jkeny is offline jkeny  Ireland
Banned
 
Join Date: Feb 2007
Location: Dublin
Hi all,
I'm about to pop for 10 of these LDRs from Allied and I'm just looking for some feedback before I do.

Firstly, is the part of choice the NSL-32SR2S matched part?

Would 10 be about right for a stereo control or should I go to 12 & hope to get 2 controls?

These are the sorted part - has anybody managed to get parts from the same batch or same grade? I emailed Silonex but was told to go through distributors with no guarantee of same grade.

I live in Ireland & Farnell sell these for 32.55 for 10 and they are on special order - so don't know how long they would take. Allied sell them for $24.50 for 10 (18) but don't give shipping costs until completing the order. I'm not sure if they ship internationally but if they do I doubt shipping could be more than $20 or am I wrong? Ahs anybody shiiped from Allied to Ireland or UK?

Thanks
John
  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



New To Site? Need Help?

All times are GMT. The time now is 03:39 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