Switchable Hi-Z input impedance, how ? - Page 10 - diyAudio
Go Back   Home > Forums > Live Sound > Instruments and Amps

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

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 December 2011, 09:11 PM   #91
tinitus is offline tinitus  Europe
diyAudio Moderator R.I.P.
 
Join Date: Nov 2005
ok
then you should know that distortion is part of the sound of a musical instrument

and with electric instruments, you rely on electronics
and there nothing goes completely without some amount of distortion

PA should not distort, ofcourse
neither should PA microphone amps, recording gear, etc

but music itself is 'distortion', thats the point


fore some time I have also claimed that a good amp can be judged by the way its able to reproduce any kind of distortion fed into it
and that goes even fore hifi, or especially there
because music is full of 'distortion'
  Reply With Quote
Old 15th December 2011, 09:27 PM   #92
tinitus is offline tinitus  Europe
diyAudio Moderator R.I.P.
 
Join Date: Nov 2005
hell, you havent noticed theres a whole 'war' out there, about jfet vs tubes vs digital, and which of them makes the nicer distortion personally, my money is on mosfets
  Reply With Quote
Old 15th December 2011, 10:59 PM   #93
tinitus is offline tinitus  Europe
diyAudio Moderator R.I.P.
 
Join Date: Nov 2005
biasing mosfets

some 'easy reading'

http://ux.brookdalecc.edu/fac/engtec...dc_biasing.pdf
  Reply With Quote
Old 15th December 2011, 11:11 PM   #94
tinitus is offline tinitus  Europe
diyAudio Moderator R.I.P.
 
Join Date: Nov 2005
getting closer
Attached Images
File Type: png 12oooooBFbi.png (21.9 KB, 64 views)
  Reply With Quote
Old 16th December 2011, 12:47 AM   #95
tinitus is offline tinitus  Europe
diyAudio Moderator R.I.P.
 
Join Date: Nov 2005
and there might be something about loosing gain into low impedance load
or is that only the mu follower

and I want 2 channel output

I give up fore now
Attached Images
File Type: png 12oooooBFbix.png (23.7 KB, 63 views)
  Reply With Quote
Old 16th December 2011, 01:14 PM   #96
tinitus is offline tinitus  Europe
diyAudio Moderator R.I.P.
 
Join Date: Nov 2005
funny, but you can actually have two outputs, unity gain, and one with gain

that might be useful
Attached Images
File Type: png 12oooooBFbi2.png (16.0 KB, 63 views)
  Reply With Quote
Old 10th March 2012, 06:56 AM   #97
tinitus is offline tinitus  Europe
diyAudio Moderator R.I.P.
 
Join Date: Nov 2005
bass guitar preamp

in the meantime this setup works quite well

meaning, as seperate units they dont work so good, but together they seem form a very lucky unity, creating a fine harmony
Attached Images
File Type: jpg IMG_6028.JPG (182.6 KB, 53 views)
  Reply With Quote
Old 12th March 2012, 08:27 PM   #98
cbdb is offline cbdb  Canada
diyAudio Member
 
Join Date: Oct 2008
Location: Vancouver
Quote:
Originally Posted by tinitus View Post
funny, but you can actually have two outputs, unity gain, and one with gain

that might be useful
Isnt one out inverted? Make them both unity and you can have a balanced output. ( a DI box)
  Reply With Quote
Old 17th March 2012, 08:25 PM   #99
tinitus is offline tinitus  Europe
diyAudio Moderator R.I.P.
 
Join Date: Nov 2005
Quote:
Originally Posted by cbdb View Post
Isnt one out inverted?
seems you are right
I didnt know that

I was missing a reg in a heater power supply kit I bought long time ago from Broskie
of course he said, "anything else you want"

so I ordered the new kit, aikido mono solo, all in one with onboard supply

with a couple of ecc82 I hope it will make a nice frontend '12db-booster'
but Im all ears if theres any other suggestion how to use it
  Reply With Quote
Old 26th March 2012, 07:55 PM   #100
tinitus is offline tinitus  Europe
diyAudio Moderator R.I.P.
 
Join Date: Nov 2005
Quote:
Originally Posted by tinitus View Post
so I ordered the new kit, aikido mono solo, all in one with onboard supply

with a couple of ecc82 I hope it will make a nice frontend '12db-booster'
but Im all ears if theres any other suggestion how to use it
hmm, would 12AY7/6072 be a good choice
  Reply With Quote

Reply


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
Switchable balanced / unbalanced input buffer nigeljking Analog Line Level 4 12th September 2011 01:03 PM
How to design input stage with specific input impedance/pot value mahleriana Tubes / Valves 0 16th November 2009 10:37 PM
Input Impedance Bengali Analog Line Level 7 15th August 2007 11:24 PM
Input impedance nhuwar Tubes / Valves 24 24th July 2007 12:11 AM
Input pot and input impedance Bricolo Parts 1 19th March 2003 02:59 PM


New To Site? Need Help?

All times are GMT. The time now is 01:37 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2