Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

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......

My thanks to Nelson Pass
My thanks to Nelson Pass
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 17th May 2004, 08:04 PM   #1
SY is offline SY  United States
On Hiatus
 
SY's Avatar
 
Join Date: Oct 2002
Location: Chicagoland
My thanks to Nelson Pass
Default My thanks to Nelson Pass

My Adcom 555 is nearly twenty years old now. It's been servoed, returned to original. Converted to direct coupled, returned to original. Regulated, then returned to original. Driven cones, ribbons, and electrostatics. Played for hours every day. Used as a PA amp at my first wedding. Used as a test amp for speaker driver measurements. Used as a high power low frequency source for driver break-in. Followed me through four houses, two wives, seven cats, three jobs.

All it's ever done is work and sound good. Maybe not your fanciest design, but there's something to be said for solidity and reliability.
__________________
"You tell me whar a man gits his corn pone, en I'll tell you what his 'pinions is."
  Reply With Quote
Old 17th May 2004, 10:48 PM   #2
Magura is offline Magura  Denmark
diyAudio Member
 
Magura's Avatar
 
Join Date: Oct 2003
Location: Denmark, Viborg
Out of curiousity. Wich caps have been used for the PSU?
Im asking cause like 20 years+ service live is rather good with that many hours on it.

Magura
__________________
Everything is possible....to do the impossible just takes a little while longer.
www.class-a-labs.com
  Reply With Quote
Old 17th May 2004, 10:52 PM   #3
SY is offline SY  United States
On Hiatus
 
SY's Avatar
 
Join Date: Oct 2002
Location: Chicagoland
My thanks to Nelson Pass
Whatever came stock with the amp. I'll look at them tonight and see what the brand is.
__________________
"You tell me whar a man gits his corn pone, en I'll tell you what his 'pinions is."
  Reply With Quote
Old 18th May 2004, 11:53 AM   #4
Jay is offline Jay  Indonesia
Banned
 
Join Date: Feb 2003
Location: Jakarta
Damn. I can't imagine that there must be something to do between Adcom and Nelson Pass
  Reply With Quote
Old 18th May 2004, 10:53 PM   #5
fdegrove is offline fdegrove  Europe
diyAudio Senior Member
 
fdegrove's Avatar
 
Join Date: Aug 2002
Location: Belgium
Hi,

Quote:
Im asking cause like 20 years+ service live is rather good with that many hours on it.
It's not the hours of use that kills the electrolytic caps, it's the hours they're not in use.

Still, 20 years is pretty good in anyone's book.

Cheers,
__________________
Frank
  Reply With Quote
Old 19th May 2004, 12:11 AM   #6
Variac is online now Variac  Costa Rica
diyAudio Editor
 
Variac's Avatar
 
Join Date: Dec 2001
Location: San Francisco, USA San Josť, Costa Rica
My thanks to Nelson Pass
Jay,

I believe that Adcom's current best preamp is a NP circuit.
__________________
"The geek shall inherit the earth"
2017 Burning Amp is November 12 in S.F. Thread here on diyAudio:
http://www.diyaudio.com/forums/clubs...francisco.html
  Reply With Quote
Old 19th May 2004, 02:39 AM   #7
SY is offline SY  United States
On Hiatus
 
SY's Avatar
 
Join Date: Oct 2002
Location: Chicagoland
My thanks to Nelson Pass
Default 20 yr old electrolytics

Foiled again; the caps are just marked "Adcom." They're blue, if that helps.

Maybe NP can tell us?
__________________
"You tell me whar a man gits his corn pone, en I'll tell you what his 'pinions is."
  Reply With Quote
Old 19th May 2004, 02:47 AM   #8
Magura is offline Magura  Denmark
diyAudio Member
 
Magura's Avatar
 
Join Date: Oct 2003
Location: Denmark, Viborg
Default Re: 20 yr old electrolytics

Quote:
Originally posted by SY
Foiled again; the caps are just marked "Adcom." They're blue, if that helps.


Thanks for checking anyway...a pity we cant tell wich caps it is, just imagine if they were dirt cheap


Magura
__________________
Everything is possible....to do the impossible just takes a little while longer.
www.class-a-labs.com
  Reply With Quote

Reply


My thanks to Nelson PassHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Nelson Pass Professor smith Pass Labs 79 1st August 2010 07:30 PM
To Mr. Nelson Pass lumanauw Pass Labs 39 29th February 2004 02:45 AM
My opinion on Pass Labs and Mr. Pass (Nelson) himself b_online Pass Labs 11 21st May 2003 01:39 AM
Nelson Pass at CES Nelson Pass Solid State 8 28th November 2002 08:06 PM
Nelson Pass macka Pass Labs 6 31st May 2002 01:52 AM


New To Site? Need Help?

All times are GMT. The time now is 12:32 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio
Wiki