Simplistic NJFET RIAA - Page 744 - diyAudio
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 22nd March 2012, 08:39 AM   #7431
diyAudio Member
 
Workhorse's Avatar
 
Join Date: Dec 2004
Quote:
Originally Posted by Salas View Post
Looks like a BF862 rival. The Philips one claims more max Yfs. Remains to be pitched against in a nVrtHz 1/f test. Such parts are the way to go if SMT testing & soldering is not a problem.
Thanxz Salas,

Soldering smd is fun.

These are ready available and low cost alternatives.
  Reply With Quote
Old 22nd March 2012, 03:45 PM   #7432
atupi is offline atupi  Romania
diyAudio Member
 
Join Date: Oct 2010
Location: Bucharest
Default Russian PIO for output

Anyone have experimented this kind of capacitors for output decoupling ?
http://i.ebayimg.com/t/OMBG-2-Paper-...eZH6cQ~~_3.JPG
  Reply With Quote
Old 22nd March 2012, 04:08 PM   #7433
Salas is offline Salas  Greece
diyAudio Chief Moderator
 
Salas's Avatar
 
Join Date: Oct 2002
Location: Athens-Greece
Yes I know them. They have an interesting tonal appeal. But not the most transparent, they are good additions if the rest result leans to ''cold''.
  Reply With Quote
Old 22nd March 2012, 06:37 PM   #7434
evanc is offline evanc  United States
diyAudio Member
 
Join Date: Sep 2009
Location: New Jersey. About 1 hour from NYC and 1 min. from the beach
I have a question about enclosures. I got two aluminum boxes from dirty dawg amps (they are nice and priced fairly). If I drill holes in them for ventilation will I compromise there shielding ability?
__________________
http://www.evancotler.com
  Reply With Quote
Old 22nd March 2012, 06:47 PM   #7435
AndrewT is online now AndrewT  Scotland
diyAudio Member
 
Join Date: Jul 2004
Location: Scottish Borders
Quote:
Originally Posted by evanc View Post
I have a question about enclosures. I got two aluminum boxes from dirty dawg amps (they are nice and priced fairly). If I drill holes in them for ventilation will I compromise there shielding ability?
circular holes are good.
The frequencies that leak through have wavelengths comparable or shorter than the hole diameter.

Slots are the big problem in leaking lower frequencies.
A lid that is not tightly closed can leave a long slot for medium frequencies to leak in.
__________________
regards Andrew T.
  Reply With Quote
Old 22nd March 2012, 08:17 PM   #7436
evanc is offline evanc  United States
diyAudio Member
 
Join Date: Sep 2009
Location: New Jersey. About 1 hour from NYC and 1 min. from the beach
OK so holes for venting....how small is good....
__________________
http://www.evancotler.com
  Reply With Quote
Old 22nd March 2012, 08:41 PM   #7437
diyAudio Member
 
dimkasta's Avatar
 
Join Date: May 2010
Location: Athens
How hot does your circuit run? Are venting holes really necessary? I would avoid holes and consider mounting anything that runs hot to the chassis itself. maybe with some insulation pads to avoid ground loops.
  Reply With Quote
Old 22nd March 2012, 08:58 PM   #7438
evanc is offline evanc  United States
diyAudio Member
 
Join Date: Sep 2009
Location: New Jersey. About 1 hour from NYC and 1 min. from the beach
I have 2 salas shunt regulators that definitly produce heat. I will mount heatsinks outside the chassis, but don't want to cook the caps.
__________________
http://www.evancotler.com
  Reply With Quote
Old 22nd March 2012, 10:28 PM   #7439
Salas is offline Salas  Greece
diyAudio Chief Moderator
 
Salas's Avatar
 
Join Date: Oct 2002
Location: Athens-Greece
Quote:
Originally Posted by evanc View Post
OK so holes for venting....how small is good....
Use a 3mm drill bit.
  Reply With Quote
Old 22nd March 2012, 10:59 PM   #7440
evanc is offline evanc  United States
diyAudio Member
 
Join Date: Sep 2009
Location: New Jersey. About 1 hour from NYC and 1 min. from the beach
So about 1/8" in our backwards country.....
Thanks
__________________
http://www.evancotler.com
  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 07:48 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