VSSA Lateral MosFet Amplifier - Page 57 - diyAudio
Go Back   Home > Forums > Commercial Sector > Vendor Forums > Vendor's Bazaar

Vendor's Bazaar Commercial Vendors large & small hawking their wares

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 5th March 2013, 11:31 AM   #561
regal is offline regal  United States
diyAudio Member
 
Join Date: Jan 2004
Location: MD
I'm in for 2 boards
  Reply With Quote
Old 5th March 2013, 11:45 AM   #562
AUSTINP is offline AUSTINP  United States
diyAudio Member
 
AUSTINP's Avatar
 
Join Date: Mar 2011
Location: New Hampshire
I will take a set of 2 also.

many thanks,
  Reply With Quote
Old 5th March 2013, 12:31 PM   #563
kroyin is offline kroyin  India
diyAudio Member
 
Join Date: Feb 2012
Location: City Of Joy
Stereo set for me & it would be a big help if all required semis are in the package
  Reply With Quote
Old 5th March 2013, 01:54 PM   #564
diyAudio Member
 
Join Date: Jan 2013
Location: SLC, Utah
Quote:
Originally Posted by Lazy Cat View Post
OMG my dear fellows so far I have counted 74 PCBs, requests from PM included.

Suppose 100 PCBs is the right number for the start, hopefully all the requests are firmly confirmed, otherwise I'll stay alone with a lot of PCBs on the stock.

The silks (top & bottom) done, parts marked, tomorrow I'll make final check all the way to the last detail and than VSSA PCB will be ready for a production.

Without any doubt I'll stick to ALF08NP16V5 as for this I guarantee you exceptional performance and perfect sound. As soon as I get some info from producer, will let you know. Initial idea remains, to offer PCB plus semiconductors together in the package.
You are the man! What are your thoughts on using a SMPS with shielding rather than toroids and rectifiers? It's what I am doing in my JLH build due to simplicity and space savings. But for VSSA, your word is gold.

Thanks again for your work
  Reply With Quote
Old 5th March 2013, 03:57 PM   #565
diyAudio Member
 
Join Date: Jan 2008
Count me in for 2 boards please. I've been waiting for this group by for a long time. Thanks and appreciate your effort for making it happen.

Cheers!

Fred
  Reply With Quote
Old 5th March 2013, 06:06 PM   #566
mikvous is offline mikvous  Greece
diyAudio Member
 
Join Date: Nov 2006
Count me in for a stereo pair.
  Reply With Quote
Old 5th March 2013, 06:52 PM   #567
diyAudio Member
 
Lazy Cat's Avatar
 
Join Date: Sep 2007
Quote:
Originally Posted by MKHunt View Post
You are the man! What are your thoughts on using a SMPS with shielding rather than toroids and rectifiers? It's what I am doing in my JLH build due to simplicity and space savings. But for VSSA, your word is gold.

Thanks again for your work
That is exactly what I was planning for the next step. SMPS is a very good choice for VSSA since ripple frequency is app. 200 kHz/10 mVpp unloaded, that's at least what I measured from the Hypex 600 W SMPS rails. As long as your SMPS will give 6 Ap or more output current at +/- 45 Vmax that's fine. Low Zout is what it counts here and SMPSs are the future that's for sure. Also VSSA + SMPS could be assembled in a small low profile case.
__________________
First One VSSA
  Reply With Quote
Old 5th March 2013, 07:31 PM   #568
diyAudio Member
 
Lazy Cat's Avatar
 
Join Date: Sep 2007
VSSA PCB design finally finished today, files already sent to production facility.

There's all together 50 SMD parts present, 31 on the top and 19 on the bottom side of PCB. Sizes of SMD resistors are 1206 (3216) 0,5 W and 2010 (5025) 1 W, SMD capacitors are of 1206 (3216) size only, all 50 V and there's also three SOT23 semiconductors. Rest of the parts are standard through hole types, four 6,3 mm faston blade connectors and three M3 screws.

VSSA PCB is a good learning ground for the ones never assembled SMD PCBs yet. It is a good mixture of standard and SMD parts on a small area, because of its size it's easy to manipulate with and rotate when soldering. So quite handy for assembling.
__________________
First One VSSA
  Reply With Quote
Old 5th March 2013, 07:33 PM   #569
diyAudio Member
 
buzzforb's Avatar
 
Join Date: Oct 2010
Location: Burlington, NC
LAzy,
What SMD do you recommend. From what I understand, Susumu is popular. I used Vishay TNPW recently, as they are extremely low noise.
__________________
...Shape the sound , Man!
  Reply With Quote
Old 5th March 2013, 07:42 PM   #570
diyAudio Member
 
Lazy Cat's Avatar
 
Join Date: Sep 2007
Just to remind you how the VSSA PCB will look like, very similar as on the pics, although much better equipped with markings, silk prints on both sides, some extra parts added, but generally very similar and the same size 50 x 60 mm, 2 mm thick.
__________________
First One VSSA
  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
Really simple lateral mosfet amplifier Tekko Solid State 11 25th March 2013 06:31 PM
Magic - My first Lateral MOSFET Push-Pull amplifier shaan Solid State 44 7th September 2011 11:47 AM
2SK/irfp lateral vertical mosfet amplifier HELP ?? medogrizli Solid State 53 2nd November 2006 12:47 AM
200 Watt Lateral Mosfet Amplifier macgyver Solid State 32 14th January 2005 06:37 AM
200W Lateral Mosfet Amplifier macgyver Solid State 5 7th July 2003 07:49 PM


New To Site? Need Help?

All times are GMT. The time now is 09:26 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