Leach Amp Project - Page 2

notoso · 17th October 2011, 03:22 AM

Do not be afraid of building the Leach Amp, the build is easy if you take your time and do it right. For you intended purpose I think a 500VA transformer and 15000uf per channel will do just fine. I am a newbie like you and did something more ambitious, I build not two, but 6-channel all original board and components Leach Amp 4.5v and if I did it, I am very sure you could also do. As others already stated, there is plenty of information in this forum and others in case you run into problems. Since you plan to do your own boards, I recommend you modify the connectors to the power transistors, that is, plan for some quick connectors or something like that so that it will be easy to unplug everything if needed. I managed to incorporate quick connectors to mine and it made it very easy to unplug everything when I needed to do repairs due to a mistake I did.
Good luck with your build and just enjoy doing it and you will be happy with the results.

gmphadte · 17th October 2011, 04:37 AM

The protection circuit in the Leach best be removed if u want still better sound. But then u have to use external speaker protection circuit if u wish to protect your (if) costly speakers. However on removing the internal protection, more semis will be blown. But then they r cheap and will happen over years of use.

If u use the external speaker protection, then u can increase the on-board filter electrolytics to a higher value like 1000µF instead of the 100µF.

Gajanan Phadte

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
My Leach Amp Clone (LEACH 150)	panson_hk	Solid State	28	15th August 2011 08:12 PM
High Current Leach/leach super amp	bowdown	Solid State	41	2nd March 2011 02:15 PM
leach amp pics first diy project	larryg	Solid State	13	14th December 2004 08:36 PM
Leach amp vs super Leach amp	supernet	Solid State	0	21st February 2002 10:16 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	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

17th October 2011, 03:22 AM	#11
notoso diyAudio Member Join Date: Jan 2010 Location: Waukegan IL	Do not be afraid of building the Leach Amp, the build is easy if you take your time and do it right. For you intended purpose I think a 500VA transformer and 15000uf per channel will do just fine. I am a newbie like you and did something more ambitious, I build not two, but 6-channel all original board and components Leach Amp 4.5v and if I did it, I am very sure you could also do. As others already stated, there is plenty of information in this forum and others in case you run into problems. Since you plan to do your own boards, I recommend you modify the connectors to the power transistors, that is, plan for some quick connectors or something like that so that it will be easy to unplug everything if needed. I managed to incorporate quick connectors to mine and it made it very easy to unplug everything when I needed to do repairs due to a mistake I did. Good luck with your build and just enjoy doing it and you will be happy with the results.

17th October 2011, 04:37 AM	#12
gmphadte diyAudio Member Join Date: Jul 2003 Location: Dona paula, Goa	The protection circuit in the Leach best be removed if u want still better sound. But then u have to use external speaker protection circuit if u wish to protect your (if) costly speakers. However on removing the internal protection, more semis will be blown. But then they r cheap and will happen over years of use. If u use the external speaker protection, then u can increase the on-board filter electrolytics to a higher value like 1000µF instead of the 100µF. Gajanan Phadte