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Old 13th April 2011, 11:23 AM   #11
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I don't have any schematic onhand.
I applied it from top overlay print screened only :-)

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Anadigit
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Old 13th April 2011, 11:44 AM   #12
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yes I did the same..... and saw the great similarity to the original X0 concerning the core of the circuit.
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Old 13th April 2011, 12:12 PM   #13
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But I think origina Pass used a great matched and better quality more than me :-)

It's my hobby about HIFI
I have a better preamp (Burmester) for DIY

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Anadigit
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Old 13th April 2011, 12:31 PM   #14
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Hi Anadigit, did you find your axon (note the spelling) caps? although they don't stock the 10 uF size, partsconnexion has 11uF axons for $2.88 US each. AXON True Cap Metallized Polypropylene Capacitors

Tony.
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Old 14th April 2011, 11:12 AM   #15
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Default AEON

Quote:
Originally Posted by wintermute View Post
Hi Anadigit, did you find your axon (note the spelling) caps? although they don't stock the 10 uF size, partsconnexion has 11uF axons for $2.88 US each. AXON True Cap Metallized Polypropylene Capacitors

Tony.
Hi,
No, I still finding 10uF AEON from US supply. Now I have some problem about 2SK389 from China supplier I think it was remarked from someone whom want to get my bullet

When I test original 2SK389BL from Borbely Audio I got 12mA but when I change to Chinese 2SK389BL (look like new screened) I got over 30mA !!!

If i have a time enough for DIY I'll cut a circuit of X-buffer to Pumpkin Preamp :-)

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Anadigit
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Old 28th April 2011, 04:26 AM   #16
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Default Semi complete !

These're my semi complete preamp, I used 20uF AEON and 10uF Panasonic.
Goal of this preamp is Unbalance Output because it's hard to select matched resistor and current LED for CCS control. I prgram Atmega MCU only volume and selector control also display shut down function. I can't find hard to obtain 20*1 VFD display as original designed.

Thanks
Anadigit
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Old 2nd June 2011, 02:24 PM   #17
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Default VFD display

Now I try to change 7-segment to 20x1 VFD display. it's almost completed
I bought this display from OEM factory of NAD S500 cd player display as spare parts.

I have many idea to use them and apply to other function of input/output and volume control.
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Old 2nd June 2011, 02:29 PM   #18
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analog_guy said the same.....
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Old 2nd June 2011, 02:34 PM   #19
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analog_guy said the same.....
Yes, you said the same to him, too
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Old 2nd June 2011, 02:46 PM   #20
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hi, hi good to have same sources...
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