the enlightened bride of zen

df · 6th July 2004, 06:35 PM

I am proud to present the nearly finished enlightened bride of zen.

Thank you everybody here on diyaudio, I have learned a lot in the last two years reading this forum. Without you all, this preamp would never had been possible…..

Daniel

Nelson Pass · 6th July 2004, 07:28 PM

I have sent your delightful photo over to Desmond for
posting on www.passdiy.com with your kind permission.

Netlist · 6th July 2004, 08:04 PM

There's enough capacity to blow up the Gothard tunnel

Please give us more info and pictures.
This looks real cool

/Hugo

df · 6th July 2004, 09:21 PM

Thank you very much Nelson, please wait 2 or 3 weeks so I have time to finish the case and to send more and better pictures

Hugo:
It ist not as much as you may think. The big cans are 6 Siemens MKV 6,8uF as coupling caps. I had vor 1 year a test setup, were I testes a lot of caps, Jensen paper in oil, mundorf, philps mkt, elna mkp and so on, the best was Siemens MKV (danke Bernhard, hier im Analog-Teil).

Beside the transformer, IRF510 and Audiofad professional pot all parts are bought ebay or taken out of computer power supplies

df · 7th July 2004, 06:54 AM

psu circuit:

df · 7th July 2004, 06:56 AM

enlightened boz circuit:

moe29 · 7th July 2004, 02:25 PM

So you're using LED's to replace the Zener Diodes?

Looks pretty neat, could you explain how you got the idea?

Very creative

df · 7th July 2004, 04:22 PM

I like to try new ways

First was the joke to replace R104 1k and R108 100 by little, orange light bulbs in homage to my first read of NP's master pieces, zen variations 1.
Worked as good as with resistors and looked good.

Second was to change the Zener diodes by yellow LED. Someone posted here, to replace Zener Diodes in Alephs CCS by LED.

Then I learned here (in german): http://www.elektronik-kompendium.de/...r/curr2pol.htm
LED work better as voltage reference under constant current conditions. And there I saw the CCS dipole with this aesthetic symmetry, I had to use it, this time in blue.

You have to use some blue ones Pass designs

Last was to change the voltage reference in BOZ also by green LED. So I tested all of my IRF510 to find matching two to the reference of 4 green LED

I like the coloured gleam, but the WAF is not really high…..

Daniel

Frazzled · 7th July 2004, 04:30 PM

Sorry not much to add to this thread but I just HAD to chime in and say;

THAT IS COOL!

df · 4th August 2004, 01:54 PM

It took a little bit longer. The case is now finished.

Nelson, what is the email adress to send the pictures to passdiy?

Daniel

7th July 2004, 04:30 PM	#9
Frazzled diyAudio Member Join Date: Apr 2004 Location: Regina, Saskatchewan	Sorry not much to add to this thread but I just HAD to chime in and say; THAT IS COOL! __________________ Anything worth trying is worth failing at once or twice.

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6th July 2004, 07:28 PM	#2
Nelson Pass The one and only Join Date: Mar 2001	I have sent your delightful photo over to Desmond for posting on www.passdiy.com with your kind permission.

6th July 2004, 08:04 PM	#3
Netlist diyAudio Moderator Join Date: Jan 2003	There's enough capacity to blow up the Gothard tunnel Please give us more info and pictures. This looks real cool /Hugo

6th July 2004, 09:21 PM	#4
df diyAudio Member Join Date: May 2002 Location: Switzerland	Thank you very much Nelson, please wait 2 or 3 weeks so I have time to finish the case and to send more and better pictures Hugo: It ist not as much as you may think. The big cans are 6 Siemens MKV 6,8uF as coupling caps. I had vor 1 year a test setup, were I testes a lot of caps, Jensen paper in oil, mundorf, philps mkt, elna mkp and so on, the best was Siemens MKV (danke Bernhard, hier im Analog-Teil). Beside the transformer, IRF510 and Audiofad professional pot all parts are bought ebay or taken out of computer power supplies

7th July 2004, 02:25 PM	#7
moe29 diyAudio Member Join Date: Dec 2002 Location: Florida	So you're using LED's to replace the Zener Diodes? Looks pretty neat, could you explain how you got the idea? Very creative

7th July 2004, 04:22 PM	#8
df diyAudio Member Join Date: May 2002 Location: Switzerland	I like to try new ways First was the joke to replace R104 1k and R108 100 by little, orange light bulbs in homage to my first read of NP's master pieces, zen variations 1. Worked as good as with resistors and looked good. Second was to change the Zener diodes by yellow LED. Someone posted here, to replace Zener Diodes in Alephs CCS by LED. Then I learned here (in german): http://www.elektronik-kompendium.de/...r/curr2pol.htm LED work better as voltage reference under constant current conditions. And there I saw the CCS dipole with this aesthetic symmetry, I had to use it, this time in blue. You have to use some blue ones Pass designs Last was to change the voltage reference in BOZ also by green LED. So I tested all of my IRF510 to find matching two to the reference of 4 green LED I like the coloured gleam, but the WAF is not really high….. Daniel

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