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

Pass Labs This forum is dedicated to Pass Labs discussion.

4U or 5U Chassis for SONY VFET/Salas Integrated Hybrid
4U or 5U Chassis for SONY VFET/Salas Integrated Hybrid
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 January 2018, 06:45 AM   #1
Doppler9000 is offline Doppler9000  Canada
diyAudio Member
 
Join Date: Apr 2010
Default 4U or 5U Chassis for SONY VFET/Salas Integrated Hybrid

Hello All,

I am planning an integrated amp out of the Salas DCG3 preamp and a Sony VFET amplifier (with gain adjusted appropriately).

I am ordering parts and wondered if the 4U will work or would the 5U be a better bet?

TIA

Last edited by Doppler9000; 11th January 2018 at 06:55 AM.
  Reply With Quote
Old 11th January 2018, 07:30 AM   #2
qwertyl is offline qwertyl  United Kingdom
diyAudio Member
 
Join Date: Apr 2003
Location: UK
I would go for 5U. You may struggle to fit both VFET and preamp to 4U chassis...
  Reply With Quote
Old 11th January 2018, 09:49 AM   #3
soldersober is offline soldersober  Hong Kong
diyAudio Member
 
Join Date: May 2016
It will fit into 4U no doubt, question is how comfortable are you working in tight(ish) spaces, what your components choices are, etc
Think it through, it's part of the fun
  Reply With Quote
Old 11th January 2018, 10:57 AM   #4
wdecho is offline wdecho  United States
diyAudio Member
 
Join Date: Oct 2014
4U or 5U Chassis for SONY VFET/Salas Integrated Hybrid
As far as heat dissipation the 4U is more than adequate. As soldersober said it will be tight installing the Salas inside but not impossible. You can probably install it on top of the PS with some tall standoffs. At least that is what I have done with the BA-3 board on the BA-1 and F4 I own. Yes I installed a BA-3 pre inside my F4, preferring it better that way.
  Reply With Quote
Old 11th January 2018, 06:02 PM   #5
Doppler9000 is offline Doppler9000  Canada
diyAudio Member
 
Join Date: Apr 2010
Thanks, everyone, this is very helpful.

Quote:
Originally Posted by wdecho View Post
As far as heat dissipation the 4U is more than adequate. As soldersober said it will be tight installing the Salas inside but not impossible. You can probably install it on top of the PS with some tall standoffs. At least that is what I have done with the BA-3 board on the BA-1 and F4 I own. Yes I installed a BA-3 pre inside my F4, preferring it better that way.
Do you happen to have some inspirational pictures of the inside?
  Reply With Quote
Old 11th January 2018, 10:56 PM   #6
wdecho is offline wdecho  United States
diyAudio Member
 
Join Date: Oct 2014
4U or 5U Chassis for SONY VFET/Salas Integrated Hybrid
No, unless I took the top off and take some pictures.
  Reply With Quote
Old 12th January 2018, 02:18 AM   #7
soldersober is offline soldersober  Hong Kong
diyAudio Member
 
Join Date: May 2016
I just realized the entire DCG3 with the DTSB boards and the transformers for the pre amp will fit on the front panel of 4U chassis.
Since you don't need the heat sinks for DTSB (mount the FET's on the reverse, front panel as heat sink), the whole thing will take very little floor space
  Reply With Quote
Old 12th January 2018, 03:09 AM   #8
Doppler9000 is offline Doppler9000  Canada
diyAudio Member
 
Join Date: Apr 2010
Quote:
Originally Posted by soldersober View Post
I just realized the entire DCG3 with the DTSB boards and the transformers for the pre amp will fit on the front panel of 4U chassis.
Since you don't need the heat sinks for DTSB (mount the FET's on the reverse, front panel as heat sink), the whole thing will take very little floor space
Excellent idea

4U 4 Me!

(Apologies to Lionel Richie).
  Reply With Quote
Old 12th January 2018, 12:32 PM   #9
delecoy is offline delecoy  United States
diyAudio Member
 
delecoy's Avatar
 
Join Date: Nov 2011
Location: Austin, TX
The vfet is a really tight fit in the 4u. I'm sure you can get it all in there, but getting to some things will be awkward and frustrating. If space isn't a concern, where the amplifier will be sitting, a 5u will give you a lot more room to work. Which can save a lot of frustration

My Vfet in a 4u case with Antek AS4222 and single peter daniel power supply board. Capacitors are 50 volt. There is probably 2 inches of usable space in between the power supply, vfets, and the top panel:

https://1drv.ms/i/s!AtUqSzQhRd9Xgb5YO18IFBuW23dcPQ

Should have added: The transformer goes right up to the edge of the PCB, probably 3/4" away, and the 50 volt capacitors are the tallest things in there. They are taller than the front end heat sinks on the pcb's

Last edited by delecoy; 12th January 2018 at 12:36 PM. Reason: More info
  Reply With Quote
Old 12th January 2018, 12:53 PM   #10
soldersober is offline soldersober  Hong Kong
diyAudio Member
 
Join Date: May 2016
IMG_7943.JPGIMG_7458.JPG

  Reply With Quote

Reply


4U or 5U Chassis for SONY VFET/Salas Integrated HybridHide 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
VFET-X (or my 1/3 40th Anniversary Sony VFET Clone) WalterW Pass Labs 177 27th April 2018 11:14 PM
WTB sony vfet kit (without vfets) Telstar Swap Meet 4 30th December 2017 05:22 PM
Tube hybrid vfet netuddki Tubes / Valves 15 8th December 2016 03:48 PM
Sony VFET JP Swap Meet 9 17th July 2015 12:51 AM
Sony Vfet housing Solid State 26 26th January 2014 03:38 AM


New To Site? Need Help?

All times are GMT. The time now is 04:56 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki