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.

The diyAudio First Watt M2x
The diyAudio First Watt M2x
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 23rd September 2018, 05:35 PM   #671
JSA1971 is offline JSA1971  Canada
diyAudio Member
Join Date: Jan 2016
Location: North Toronto
BTW your IPS bolts are a well-chosen length, congratulations. Nelson Pass gently mocked 6L6 and me for installing quite long bolts (20mm!) in the first M2x build. See posts #13 and #17 in this thread. Most of the sting has dissipated, with the passage of time.[/QUOTE]

Iíve heard that itís not the size of the bolt that matters, but how you use it 😉Lol. Iíll also probably end up using the longer bolts, Iím 95% done with my parts purchases 🙌🏻. Canít wait to get soldering!
  Reply With Quote
Old Yesterday, 05:38 PM   #672
PH104 is offline PH104  United States
diyAudio Member
PH104's Avatar
Join Date: Nov 2001
Location: New Mexico
The diyAudio First Watt M2x
Originally Posted by Mark Johnson View Post
Phil, if you decide to cook up your own Zobel network to match your own Edcor transformer, I'm sure a lot of readers here would love to see a frequency response plot of your Edcor (a) using the Official M2 Schematic design and parts values of the Zobel; and also (b) using your final choice of Zobel network, that you settled upon after experimenting with the Edcor on your Analog Discovery 2, using your new optimized parts values.
You bet Mark. I built a test board using a stripped down OPA604 Tucson board powered directly from a +/- 15VDC supply and some parts (C2, C3, R7, R6, RV1) on the main board. I put test points at the ends of the R5C1 Zobel to be able to test some variations. My first measurements will be over the batch of 6 Edcors, with and without Zobel, to see what extent - if any - matching is important. Getting the data is easy but it's been too long since I've used a spreadsheet for graphing but hope to have some plots in a few days.

Attached Images
File Type: jpg IMG_0655.jpg (899.6 KB, 68 views)
  Reply With Quote


The diyAudio First Watt M2xHide 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
What make and model are the original drivers in Wilson Watt&Puppy 7 (WATT) aguiarrj Multi-Way 17 24th June 2017 10:39 PM
2.3 watt x 4 or 5 watt x2 SET amplifier using DECWARE Zkit1 and Zkit4 schematics Redwolf92 Tubes / Valves 12 29th October 2014 10:19 PM
diyaudio moderator vs diyaudio member Leolabs Everything Else 6 18th June 2006 08:19 AM

New To Site? Need Help?

All times are GMT. The time now is 01:19 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio