Help me find a better sub for 1N4007

mtl777 · 06:55 PM

Hey guys, what would you recommend as a better replacement for the 1N4007 diodes in my tube DAC's power supply?

Thanks!

SY · 24th April 2010, 06:54 PM

UF4007. Cheap and quieter.

Mooly · 24th April 2010, 06:54 PM

I'll be very boring and suggest a BY399 which is a fast "soft recovery" device.

mtl777 · 24th April 2010, 07:24 PM

Thanks a lot, guys! I heard Schottky diodes are also good. How do they compare with the UF4007 and BY399?

kevinkr · 24th April 2010, 07:31 PM

Quote:

Originally Posted by SY

UF4007. Cheap and quieter.

One of my favorites, and cheap and easy to find.

kevinkr · 24th April 2010, 07:33 PM

Quote:

Originally Posted by mtl777

Thanks a lot, guys! I heard Schottky diodes are also good. How do they compare with the UF4007 and BY399?

I can't tell the difference between a UF4007 and a high voltage Schottky at many times the price, although there are those who claim to be able to.. Might have something to do with the way I design things.. Or perhaps my tin ears?

mtl777 · 07:59 PM

What do you think of the HER107? The store nearby has it and will save me from having to order from DigiKey.

BTW, is junction capacitance something to consider when comparing diodes? Is lower junction capacitance better?

tvi · 24th April 2010, 08:16 PM

BYV26?

Rgds
James

mtl777 · 25th April 2010, 07:07 PM

Hey guys, thanks a lot!

I have compared the data sheets of your recommendations and it looks like they all have very similar specs. Choosing is a toss up, but I think I'll go with UF4007 as it had the most recommendations here and in another forum as well.

mtl777 · 27th April 2010, 07:01 PM

I happened to chance upon what looks to be a very good rectifier. Have you heard about or tried the NTE575? It's faster than the UF4007 (TRR is 70 ns compared to 75 ns for the UF4007) and it has lower forward voltage (VF is 1.5V compared to 1.7V for the UF4007). It's three times more expensive though, 70 cents a piece. Do you think it is good and worth the higher price compared to UF4007?

24th April 2010, 06:54 PM	#2
SY diyAudio Moderator Join Date: Oct 2002 Location: Austin, TX Blog Entries: 1	UF4007. Cheap and quieter. __________________ “Listening to records is like ****ing a picture of Brigitte Bardot.” - Sergiu Celibidache

24th April 2010, 06:54 PM	#3
Mooly diyAudio Member Join Date: Sep 2007	I'll be very boring and suggest a BY399 which is a fast "soft recovery" device. __________________ ------------------------------------------------------- *A simulation free zone.* *Design it, build it, test it.*

24th April 2010, 07:55 PM	#7
mtl777 diyAudio Member Join Date: Oct 2007	What do you think of the HER107? The store nearby has it and will save me from having to order from DigiKey. BTW, is junction capacitance something to consider when comparing diodes? Is lower junction capacitance better? Last edited by mtl777; 24th April 2010 at 07:59 PM.

24th April 2010, 08:16 PM	#8
tvi diyAudio Member Join Date: Apr 2001 Location: Moonee Ponds, Vic, Australia	BYV26? Rgds James __________________ The border between the Real and the unreal is not fixed, but just marks the last place where rival gangs of shamans fought each other to a standstill. Robert Anton Wilson

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24th April 2010, 07:24 PM	#4
mtl777 diyAudio Member Join Date: Oct 2007	Thanks a lot, guys! I heard Schottky diodes are also good. How do they compare with the UF4007 and BY399?

25th April 2010, 07:07 PM	#9
mtl777 diyAudio Member Join Date: Oct 2007	Hey guys, thanks a lot! I have compared the data sheets of your recommendations and it looks like they all have very similar specs. Choosing is a toss up, but I think I'll go with UF4007 as it had the most recommendations here and in another forum as well.

27th April 2010, 07:01 PM	#10
mtl777 diyAudio Member Join Date: Oct 2007	I happened to chance upon what looks to be a very good rectifier. Have you heard about or tried the NTE575? It's faster than the UF4007 (TRR is 70 ns compared to 75 ns for the UF4007) and it has lower forward voltage (VF is 1.5V compared to 1.7V for the UF4007). It's three times more expensive though, 70 cents a piece. Do you think it is good and worth the higher price compared to UF4007?

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