Diode help

dognut · 27th February 2009, 12:59 PM

Hello to all.Working on a sansui 1000a tube reciever. On the main power transformer there are 2 diodes #Si, diode AC (rms)180v@500ma. on 1 circut & 1 diode # selenium diode ac 45v@25ma on another circut. Can I swap these with 1n4007 type diodes? (these diodes are not the rectifier diodes.the rectifier has 6 glass type Ge diode 90v@50ma.What can I change these over to? Thanks, tom

ct12 · 11th May 2009, 09:03 AM

Hi,

Here are two sites where you can find diode details:

http://www.alldatasheet.com/view.jsp?Searchword=4049

and

http://www.datasheetarchive.com/

Al the best.

Regards.

ct12

woody · 11th May 2009, 10:41 AM

Replacing a selinium rectifier with a silicone diode is usualy a little
more complicated. The silicone diode will give you a higher output
voltage you may need to make an adjustment for this higher voltage.

27th February 2009, 12:59 PM	#1
dognut diyAudio Member Join Date: Oct 2007	Diode help Hello to all.Working on a sansui 1000a tube reciever. On the main power transformer there are 2 diodes #Si, diode AC (rms)180v@500ma. on 1 circut & 1 diode # selenium diode ac 45v@25ma on another circut. Can I swap these with 1n4007 type diodes? (these diodes are not the rectifier diodes.the rectifier has 6 glass type Ge diode 90v@50ma.What can I change these over to? Thanks, tom

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11th May 2009, 09:03 AM	#2
ct12 diyAudio Member Join Date: May 2009	Hi, Here are two sites where you can find diode details: http://www.alldatasheet.com/view.jsp?Searchword=4049 and http://www.datasheetarchive.com/ Al the best. Regards. ct12

11th May 2009, 10:41 AM	#3
woody diyAudio Member Join Date: Jan 2002 Location: Tyrone Ga. U.S.A.	Replacing a selinium rectifier with a silicone diode is usualy a little more complicated. The silicone diode will give you a higher output voltage you may need to make an adjustment for this higher voltage.

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