Testing High Voltage Regulator?

ron944 · 20th August 2011, 06:38 PM

Hi, I am using an NTE238 as a replacemnet for a Motorola MJ12005 high voltage regulator. It is in a TO-3 case in the power supply for a Counterpoint preamp. Is there anyway to test if the regulator is good without destroying it.

Thanks,
Ron

digits · 20th August 2011, 06:41 PM

lightbulb in one of the ac wires leading to your PSU.

ron944 · 20th August 2011, 06:56 PM

I would like to test it out of the circuit as I keep blowing a 5 watt resistor as I bring the Variac up to 90 volts. Trying to isolate the cause.

digits · 21st August 2011, 06:46 AM

just place it before the variac, it should limit the current (glow brightly) when it encounters a problem... so the excess power has somewhere else to go to rather than your project.

20th August 2011, 06:38 PM	#1
ron944 diyAudio Member Join Date: Sep 2010 Location: Florida	Testing High Voltage Regulator? Hi, I am using an NTE238 as a replacemnet for a Motorola MJ12005 high voltage regulator. It is in a TO-3 case in the power supply for a Counterpoint preamp. Is there anyway to test if the regulator is good without destroying it. Thanks, Ron

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
High Voltage Regulator	mod_evil	Power Supplies	36	28th October 2011 12:48 PM
high voltage regulator	wleediy	Solid State	2	4th August 2009 07:12 AM
High voltage, high current super regulator, possible group buy	peranders	Group Buys	54	2nd June 2009 09:43 AM
High voltage regulator	sparkle	Tubes / Valves	45	29th August 2004 05:52 AM

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

20th August 2011, 06:41 PM	#2
digits diyAudio Member Join Date: Apr 2011	lightbulb in one of the ac wires leading to your PSU.

20th August 2011, 06:56 PM	#3
ron944 diyAudio Member Join Date: Sep 2010 Location: Florida	I would like to test it out of the circuit as I keep blowing a 5 watt resistor as I bring the Variac up to 90 volts. Trying to isolate the cause.

21st August 2011, 06:46 AM	#4
digits diyAudio Member Join Date: Apr 2011	just place it before the variac, it should limit the current (glow brightly) when it encounters a problem... so the excess power has somewhere else to go to rather than your project.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)