Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki 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

my first post and a question
my first post and a question
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
Reply
 
Thread Tools Search this Thread
Old 5th September 2018, 10:45 AM   #221
hendrixgr is offline hendrixgr
diyAudio Member
 
Join Date: Apr 2018
After some testing do not buy this negative dc converter 3PC MC34063A Reverse Voltage Module Positive To Negative Voltage Convertor Lot | eBay
because it gets too hot.

The other one i mentioned is perfect +-5V 6V 9V 12V 15V 24V Positive & Negative Dual DC DC Step-up Boost Converter | eBay

Remember to select the -24v type.

Chris
  Reply With Quote
Old 5th September 2018, 01:45 PM   #222
kodabmx is offline kodabmx  Canada
diyAudio Member
 
Join Date: Oct 2011
Location: Toronto
Good to know. I'm just using one of these set to 110V and I drop 51V with a zener and use the rest for biasing... I originally was going to wire for Triode and needed the extra voltage. In my new 6P45S build in triode mode, I'm using the same module for bias, but I'm using an AB-4 autobiasing board from Pavel at
audioamp.eu
DC-AC Converter 12V to 110V 200V 220V 280V 150W Inverter Boost Board Transformer | eBay
Automatic bias control module for four push-pull (PP) tube AB-4. Dimensions 74x77 mm. TES

Just thought I'd let you know I reconfigured for Triode operation on my build. 300V B+, fixed bias @ 60ma per tube. Very nice sound even if it's only 27W...
  Reply With Quote

Reply


my first post and a questionHide 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
Where to post question Muser Power Supplies 2 17th October 2017 08:12 PM
Post a question goodknight10 Introductions 1 11th April 2015 12:20 PM
Hello and where to post my question! PhilEV Introductions 4 4th March 2015 08:16 PM
First post and parts question Mr Bryan Car Audio 3 2nd February 2010 04:33 PM
Hello all this is my first post and I have an XLR Question. Brett D. Tubes / Valves 4 6th April 2003 09:14 AM


New To Site? Need Help?

All times are GMT. The time now is 02:11 AM.


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
Wiki