Hybrid rectification tube/diode

gmant123 · 4th January 2013, 07:35 PM

Hi All and happy new year!!!

I want a make a 300b power amp, with hybrid rectification, tube/diode, but on hand only have HER508 diodes, they can work??
The tube rectifier is a 5Z3.

Diode Datasheet

Example of rectification..

Thanks for help..

Alberto.

Ketje · 4th January 2013, 07:58 PM

You didn't indicate the sec.voltage of the transformer ??
The max reverse voltage of the diodes hase to exeed (largely) the Vp of the transfo.
Ater the rec.tube the capacitor is limited to 32µF not 100 !
Mona

gmant123 · 4th January 2013, 08:27 PM

Hi, thank you for reply.

Is a choke load PSU, transformer secundary 510V.
Trafo-hybrid rectification-10H choque-45uf film-5H-45uf film, one 5H per channel.

Regards.

Alberto.

merlin el mago · 4th January 2013, 08:51 PM

It seems HER508 diodes are OK.

4th January 2013, 07:35 PM	#1
gmant123 diyAudio Member Join Date: Dec 2009 Location: Magdalena, Argentina	Hybrid rectification tube/diode Hi All and happy new year!!! I want a make a 300b power amp, with hybrid rectification, tube/diode, but on hand only have HER508 diodes, they can work?? The tube rectifier is a 5Z3. Diode Datasheet Example of rectification.. Thanks for help.. Alberto. __________________ Analog as the sound of the nature....

4th January 2013, 08:27 PM	#3
gmant123 diyAudio Member Join Date: Dec 2009 Location: Magdalena, Argentina	PSU Hi, thank you for reply. Is a choke load PSU, transformer secundary 510V. Trafo-hybrid rectification-10H choque-45uf film-5H-45uf film, one 5H per channel. Regards. Alberto. __________________ Analog as the sound of the nature....

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4th January 2013, 07:58 PM	#2
Ketje diyAudio Member Join Date: Dec 2012 Location: Flanders	You didn't indicate the sec.voltage of the transformer ?? The max reverse voltage of the diodes hase to exeed (largely) the Vp of the transfo. Ater the rec.tube the capacitor is limited to 32µF not 100 ! Mona

4th January 2013, 08:51 PM	#4
merlin el mago diyAudio Member Join Date: Sep 2009 Location: Catalonia - Europe	It seems HER508 diodes are OK.