New MINI ZEN Headphone Amp PCB group order... - Page 16

Mrpong · 21st February 2007, 07:34 AM

Hi Zang,

Do you have some PCBs available? I'm interested about two bare boards.

digi01 · 28th March 2007, 01:18 AM

sorry mini zen v2 is stopped.
i am working on a dedicated mod,the new module will include pre stage.

zang

A'af · 14th May 2007, 02:09 AM

hi folks,

i have some spare of this board for version 1, not the FR4 but CEM.

1 board for US$3 plus shiping stereo need 2 board. (discount work if you buy more than 10 boards)

if anyone want it, pls PM me.

thanks,
a'af

sonidos · 23rd October 2010, 07:39 PM

I just picked up two of these boards from another member on the forum. How critical is the voltage value in this circuit?

Can I get by safely with 50V? At first blush, the C6 and C7 caps are rated for 50 volts, so why 63V to 100V ratings? Was it just expediency at the time? Thanks in advance!

sonidos · 5th November 2010, 05:15 PM

nm - I see by the schematic that it should see about 24 V on the rail (not regulated though)...so I'm going with 50V caps minimum...talk about late to the party!

28th March 2007, 01:18 AM	#152
digi01 diyAudio Member Join Date: Mar 2003 Location: BEIJING	sorry mini zen v2 is stopped. i am working on a dedicated mod,the new module will include pre stage. zang __________________ 2010 DIY ALBUM UPDATED UCPv1(preamp) & DUAL(power supply)

14th May 2007, 02:09 AM	#153
A'af diyAudio Member Join Date: Nov 2001 Location: Indonesia, Jakarta	Zem headphone amp ver.1 hi folks, i have some spare of this board for version 1, not the FR4 but CEM. 1 board for US$3 plus shiping stereo need 2 board. (discount work if you buy more than 10 boards) if anyone want it, pls PM me. thanks, a'af __________________ “Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense.” Buddha

23rd October 2010, 07:39 PM	#154
sonidos diyAudio Member Join Date: Jul 2007 Location: Round Rock, TX	C2 voltage value? I just picked up two of these boards from another member on the forum. How critical is the voltage value in this circuit? Can I get by safely with 50V? At first blush, the C6 and C7 caps are rated for 50 volts, so why 63V to 100V ratings? Was it just expediency at the time? Thanks in advance!

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21st February 2007, 07:34 AM	#151
Mrpong diyAudio Member Join Date: Aug 2004 Location: Bangkok	Hi Zang, Do you have some PCBs available? I'm interested about two bare boards.

5th November 2010, 05:15 PM	#155
sonidos diyAudio Member Join Date: Jul 2007 Location: Round Rock, TX	nm - I see by the schematic that it should see about 24 V on the rail (not regulated though)...so I'm going with 50V caps minimum...talk about late to the party!

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