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

Solid State Talk all about solid state amplification.

Building AMP - Help
Building AMP - Help
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
Thread Tools Search this Thread
Old 15th December 2012, 01:01 PM   #1
Djera is offline Djera  Montenegro
diyAudio Member
Djera's Avatar
Join Date: Jul 2010
Location: Bar
Default Building AMP - Help

I have transformer 36V-0-36V from Technics SU-470 BSX.
Can i use it for any of this boards? Which board is best for this transformer?

1. 2pcs L10 200W+200W power amplifier kit DIY KIT-in Amplifier from Consumer Electronics on Aliexpress.com

2. 1pair LJM MX50 SE (100w+100w)Power amp kit Stero Amplifier kit DIY-in Amplifier from Consumer Electronics on Aliexpress.com

3. Assembled L20 VER7 Stero Audio power amplifier Kit DIY AMP channel 2.0 free shipping-in Amplifier from Consumer Electronics on Aliexpress.com

  Reply With Quote
Old 15th December 2012, 02:34 PM   #2
lanchile is offline lanchile  United States
diyAudio Member
lanchile's Avatar
Join Date: Sep 2008
Location: in my house!
I would go for the bottom one!, but if you really want to build a better one, you can get many from this forum. there are pretty good ones and beside you will get all the help from here. I have try many but my favorite and still in my living room is this 2sk1058 2sk2221 irfp9240 mosfet amplifier schematic The M400 sounded better than my Bryston B60 (I sold it).
  Reply With Quote
Old 16th December 2012, 03:21 PM   #3
Djera is offline Djera  Montenegro
diyAudio Member
Djera's Avatar
Join Date: Jul 2010
Location: Bar
This AMP is only for hobby. 125USD is too much for me and this project.

Thanks for your help, I will make a AMP that you recommend. 40$ for two boards is OK.

I hope tahat Boards will give about 50-60W into 8Ohm with this Transformer.
  Reply With Quote
Old 16th December 2012, 05:16 PM   #4
AndrewT is offline AndrewT  Scotland
Join Date: Jul 2004
Location: Scottish Borders
Have a look at the FetZilla.
Single pair output stage for ~50W into 8r0.
regards Andrew T.
  Reply With Quote
Old 16th December 2012, 09:31 PM   #5
Ian Finch is offline Ian Finch  Australia
diyAudio Member
Join Date: Apr 2010
Location: Coffs Harbour, NSW
There is the matter of the OP wanting to use a 36-0-36V transformer and the resulting 50-54V DC rails.
The high voltage almost dictates a non-cheap amplifier. If price is the primary constraint, I think an Ebay
transistor amplifier kit or PCBs might be the only direct solution. You waste too much money sourcing hard-to-get
parts in small quantities and that's the reason for buying kits, even though the design or some parts may be ****.

If you still want a premium design and parts, it is going to be expensive, particularly if you DIY the whole project.
If only I had listened....
  Reply With Quote
Old 18th December 2012, 05:47 PM   #6
east electronics is offline east electronics  Greece
diyAudio Member
east electronics's Avatar
Join Date: Jan 2006
Location: Athens GREECE
su 470 works wih VI limiters resulting high voltage rails providing enough headroom but still calculations dont work out

36+36 volt ac will be enough as voltage to create an amplifier of at least 100real watts at 8ohms ...still the specific trafo eventhough possible to produce the voltage hasn't got enough power to support them

even if you make or get a kit of 100 W power amplifier you will eventually produce almost 60 with danger and distortion ...

so sorry ..its a no go unless you design or get some amplifier that is designed to operate under the VI limiter principal and low power

Kind regards
  Reply With Quote


Building AMP - HelpHide 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
Amp Design/what goes into building a great amp fglabach Solid State 141 12th June 2009 05:17 PM
building EMG BQS system <>? woodbuilder Instruments and Amps 0 16th May 2008 02:58 PM
Building ONO - looking for 2SK170 & 2SK389 skseah Pass Labs 34 7th February 2005 10:19 PM

New To Site? Need Help?

All times are GMT. The time now is 04:05 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio