Go Back   Home > Forums > >

Solid State Talk all about solid state amplification.

Jean Hiraga Bipolar MC preamp
Jean Hiraga Bipolar MC preamp
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
Old 25th January 2012, 06:08 AM   #1
mhouston is offline mhouston  Australia
diyAudio Member
 
mhouston's Avatar
 
Join Date: Jan 2006
Location: Victoria, Australia
Default Jean Hiraga Bipolar MC preamp

After building a number of Le Pacific jFet MC preamps I found a schematic for a bipolar version from Jean Hiraga.The low noise transistors he used are no longer available but the SSM2220 chip is. It houses two matched NPN transistors in a 8 pin form. Of course they are super low noise.

Jean likes a ton of storage caps and big batteries to run his creations. Here I used 4 X 1F (1000,000uf) caps in series to give 1F of storage across the +/- 6V rails. Construction is on veroboard and the enclosure is Hammond. Output caps are Russian PIO (0.47uf). A 25 turn trim pot makes it real easy to dial 0V at the input. On a short listen the sound is natural and flowing and appears to work well with my Audio-technica AT-FM3/MKIII.
Attached Images
File Type: jpg MCII.jpg (213.1 KB, 464 views)
File Type: jpg MCFinishedI.jpg (127.0 KB, 438 views)
File Type: jpg MCFinishedII.jpg (142.6 KB, 412 views)
  Reply With Quote
Old 24th October 2019, 03:48 PM   #2
tiefbassuebertr is offline tiefbassuebertr  Germany
diyAudio Member
 
tiefbassuebertr's Avatar
 
Join Date: Jul 2005
Location: D-55629 Schwarzerden
Unfortunately this thread is not correct filed.
Maybe one of the moderators can move this thread under
Jean Hiraga Mc circuit
  Reply to this post

Reply


Jean Hiraga Bipolar MC preampHide this!Advertise here!
Thread Tools

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
Jean Hiraga Mc circuit NickC Analogue Source 21 8th March 2021 07:56 AM
Jean Hiraga RIAA Phono icefox Analogue Source 25 23rd August 2013 07:45 PM
Any Jean Hiraga class A PCBs or kits? tweakk Solid State 0 12th July 2011 05:15 PM
Jean Hiraga SE KT88 Nikon1975 Tubes / Valves 9 16th March 2010 04:50 PM
Jean Hiraga SE Amplifier Power Supply Nikon1975 Tubes / Valves 5 9th December 2009 12:44 PM


New To Site? Need Help?

All times are GMT. The time now is 09:52 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Copyright ©1999-2021 diyAudio
Wiki