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

Instruments and Amps Everything that makes music, Especially including instrument amps.

ECC99 Reverb Driver
ECC99 Reverb Driver
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 15th November 2019, 10:52 AM   #1
Seabstudio is offline Seabstudio
diyAudio Member
 
Join Date: Nov 2019
Default ECC99 Reverb Driver

Greetings !


I already build a standalone spring reverb with a transformeless driver for tank for a studio use so unit use balanced transformer for input and output ( connect to a +4dbu mixing desk )

It work good, but I want to drive more the tank and don't know witch values I need to tweak arround the Tube to test

I follow the Valve Wizard recommandation but originally he drawn shematic for ECC82 , but say " A larger triode like an ECC99 or even a triode-strapped pentode might be used on its own "

http://www.valvewizard.co.uk/ReverbDriver5.jpg

But I think values can be ajusted ...if someone can help
Thanks in advance

ECC99
https://www.jj-electronic.com/images.../pdf/ecc99.pdf

link
The Valve Wizard
  Reply With Quote
Old 15th November 2019, 08:09 PM   #2
Alllensoncanon is offline Alllensoncanon  United States
diyAudio Member
 
Join Date: Mar 2017
Location: NorCal, East Bay
ECC99 Reverb Driver
If you use 1/2 of an ECC99 to replace the parallel ECC82 in this circuit, try change Ra from 22K to 12K. Rk from 820R to 550R.That should increase the plate current from ~7mA to ~10.5mA.
  Reply With Quote
Old 17th November 2019, 11:58 AM   #3
Seabstudio is offline Seabstudio
diyAudio Member
 
Join Date: Nov 2019
Thanks a lot for this suggestion !
I can't use the parallel ECC99 to drive the tank ?
  Reply With Quote

Reply


ECC99 Reverb DriverHide 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
Help with reverb driver circuit PgrAm Instruments and Amps 22 28th October 2015 05:25 PM
Guitar Spring Reverb Driver jordancolburn Instruments and Amps 7 19th October 2011 10:03 PM
Spring Reverb driver mod. required magnetman Instruments and Amps 1 16th October 2011 11:35 AM
Help - tube driver for spring reverb... memphissound Instruments and Amps 8 16th September 2005 06:51 AM
JJ Tesla ECC99 as a driver for 300B-2A3 konstantin Tubes / Valves 6 1st July 2003 09:43 PM


New To Site? Need Help?

All times are GMT. The time now is 08:12 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Copyright ©1999-2020 diyAudio
Wiki