Double checking my PSU and filter question. - diyAudio
Go Back   Home > Forums > Amplifiers > Tubes / Valves
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

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 10th December 2003, 12:49 AM   #1
diyAudio Member
Join Date: Sep 2003
Location: Bay Area, CA
Default Double checking my PSU and filter question.

I'm just starting to plan my first amp project and decided to try the JE Labs 2A3. I can't decide whether to do the SRPP or 2001 model yet but they look pretty similar. I do not want to use the GZ37 rectifier and want to sub it with a 5AR4.

I did do a simulation with PSUD2 starting with a Hammond 272JX at 300V with the 5AR4 as a rectifier, 4.7uF/10H(75ohm)/100uF pi filter followed by a 120mA current load. Seems to be fine because I get 329V at the load with about 363Vp. Current rings a little at about 4mS, after turn on.

My questions are:
1) does this PS look okay?
2) is the 5AR4 a slow starter for delaying the B+ turn on?
3) is the 5AR4 too small for this current load?
4) is this enough filtering for the main B+ line?
5) should I worry about the current ringing at 4mS?

6) which design should I go for? 2a3 2001 or SRPP 2a3?
7) any recommendations for a SE OPT that cost between the Hammond 125ESE and the 1627SE?

  Reply With Quote


Hide 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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Checking ARC SP9 Pathmark Tubes / Valves 2 11th December 2007 04:03 PM
Checking in... ghudnub Introductions 1 19th September 2005 03:58 PM
Double Chamber Reflex Vent Question Guss Multi-Way 16 26th June 2004 07:44 PM
quick question about double chamber reflex nobody special Multi-Way 3 11th June 2003 04:54 PM

New To Site? Need Help?

All times are GMT. The time now is 11:03 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2