Leach amp power-up

larryg · 9th October 2009, 07:30 PM

Greetings to All. I have a Leach amp I built a few years ago. This amp has not been used for about a year. When I power-up this amp are there any pre-cautions I should take when doing so ? The amp was in good working order when used. All replys will be greatly appreciated.

eyoung · 10th October 2009, 02:36 AM

Hola Y'all...

A cheap precautionary step is to fab up a power cord with a screw in light socket in the hot leg(I use a 60w bulb)and if you are really cautious use a variac to bring it up slow. Probably the only thing that could go wrong with age and dormancy is a capacitor may go astray. Short the inputs bring on the power and ck for DC at the outputs, lots pf discussion on whats good but generally something less than 50mV and 10 or less is great.

Keep us posted not a lot of discussion on professor Leach's progeny.

Regards, Elwood

larryg · 10th October 2009, 06:22 PM

Thanks eyoung, sounds like good advice.
Thanks again, larryg

9th October 2009, 07:30 PM	#1
larryg diyAudio Member Join Date: Feb 2004 Location: cary,n.c.	Leach amp power-up Greetings to All. I have a Leach amp I built a few years ago. This amp has not been used for about a year. When I power-up this amp are there any pre-cautions I should take when doing so ? The amp was in good working order when used. All replys will be greatly appreciated. __________________ larryg

10th October 2009, 02:36 AM	#2
eyoung diyAudio Member Join Date: Aug 2007 Location: Sunny SC,USA 15 min south of Charlotte NC	Hola Y'all... A cheap precautionary step is to fab up a power cord with a screw in light socket in the hot leg(I use a 60w bulb)and if you are really cautious use a variac to bring it up slow. Probably the only thing that could go wrong with age and dormancy is a capacitor may go astray. Short the inputs bring on the power and ck for DC at the outputs, lots pf discussion on whats good but generally something less than 50mV and 10 or less is great. Keep us posted not a lot of discussion on professor Leach's progeny. Regards, Elwood __________________ "when you open your mind to the imposible, soon you will find the truth...."

10th October 2009, 06:22 PM	#3
larryg diyAudio Member Join Date: Feb 2004 Location: cary,n.c.	Thanks eyoung, sounds like good advice. Thanks again, larryg __________________ larryg

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