Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Pass Labs This forum is dedicated to Pass Labs discussion.

Penultimate zen psu
Penultimate zen psu
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 29th January 2006, 08:00 PM   #1
arlekin is offline arlekin  Croatia
diyAudio Member
Join Date: Jan 2006
Location: Sibenik
Smile Penultimate zen psu


I'm fresh on this board and this is one of my first posts so greetings to you all.

Highly impressed by the sound of my favorite music trough Zen v4 amp and after a lot of contemplation I decieded to try to build one.

Since I don't have education in electronics, I will require a some help form you folks. Hope you don't mind.

Because I live in Europe, PSU will have to be modified.
Few questions:

1) The Gretz available to me are ones with 600V 35A, and 1100V 35A. Which ones should I use? I was thinking 600V

2)Thermistor will be CL70. It's suposed to give better preformance on 220V. Should I use two in parallel, one for each primar?

3)Since 25000uF conds are not available I will use 33000uF caps. This is better than 22000uF? (they are expensive, but that marvelous sound is worth of it)

4)The 0.1 uF capacitor remains the 0.1uF regardless of 220V?
I want to use no.107426 from farnell catalogue (paper, AC:220V). Here are the specs:

CAPACITOR, CLASS X2 0.1UF; Capacitance:0.1F; Voltage rating, AC:250V; Voltage rating, DC:2700V; Capacitor dielectric type:Paper; Tolerance, +:20%; Tolerance, -:20%; Case style:Radial; Class, suppression:X2; Temperature,

They must be higher than 220V AC, right?

5)The fuse remains 3A?

6)I will probably get toroid trafos wind up. So I want to know how important is to have two primars and two secondarys (since the secondarys are connected in series)?

Well, I hope this is not to much questions.
Here is the picture of modified and the original PSU.
Thank you!

Copyright picture of ZenV4 PSU removed and link to the schematic inserted.
Modifications are in the text above.
  Reply With Quote
Old 30th January 2006, 10:07 AM   #2
bays_9a5tt is offline bays_9a5tt  Croatia
diyAudio Member
bays_9a5tt's Avatar
Join Date: Jan 2005
Location: Zagreb
hi arlekin and welcome.
check your email
  Reply With Quote


Penultimate zen psuHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
The Penultimate Zen Part 4 gchrist Pass Labs 7 26th August 2008 08:07 AM
Penultimate Zen Hybrid kristijan-k Pass Labs 48 11th January 2004 08:26 AM
Penultimate Zen SNR? amo Pass Labs 6 15th July 2003 07:21 PM
Help with Penultimate Zen amp. Panelhead Pass Labs 3 30th December 2002 03:26 AM

New To Site? Need Help?

All times are GMT. The time now is 04:33 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio