JBB
Active member
Redd 47 Mic Preamp
Photos of the project: http://jbb.ru/47/
The scheme used is this: http://jbb.ru/schematics/47-shem.htm
The layout used is this: http://jbb.ru/schematics/47-layout.htm
The original scheme looks like this:
********************************************************************
Accessories purchased in different places:
Transformers Audio: http://www.sowter.co.uk/
Resistors and the transformer supply: http://www.partsconnexion.com/
Switchman: http://www.hairballaudio.com/shop/index.php?cPath=25
Attenuator: http://www.hairballaudio.com/shop/product_info.php?cPath=27&products_id=65
Case: http://collectivecases.com/redd47.html - This also fits: http://www.diy-racked.com/diy-talk/viewtopic.php?f=7&t=196
Capacitors and other trifles bought for eBay and Tubedepot.
A few pictures from the field work:
First up was assembled layout of this amplifier:
Potestit layout with different versions of Circuits and correction scheme went on to the final phase:
Audio examples:
http://forum.guitarplayer.ru/index.php?action=dlattach;topic=277266.0;attach=933730
http://forum.guitarplayer.ru/index.php?action=dlattach;topic=277266.0;attach=933731
Photos of the project: http://jbb.ru/47/
The scheme used is this: http://jbb.ru/schematics/47-shem.htm
The layout used is this: http://jbb.ru/schematics/47-layout.htm
The original scheme looks like this:
********************************************************************
Accessories purchased in different places:
Transformers Audio: http://www.sowter.co.uk/
Resistors and the transformer supply: http://www.partsconnexion.com/
Switchman: http://www.hairballaudio.com/shop/index.php?cPath=25
Attenuator: http://www.hairballaudio.com/shop/product_info.php?cPath=27&products_id=65
Case: http://collectivecases.com/redd47.html - This also fits: http://www.diy-racked.com/diy-talk/viewtopic.php?f=7&t=196
Capacitors and other trifles bought for eBay and Tubedepot.
A few pictures from the field work:
First up was assembled layout of this amplifier:
Potestit layout with different versions of Circuits and correction scheme went on to the final phase:
Audio examples:
http://forum.guitarplayer.ru/index.php?action=dlattach;topic=277266.0;attach=933730
http://forum.guitarplayer.ru/index.php?action=dlattach;topic=277266.0;attach=933731