Iron Pile Custom 200
Posted: Wed Mar 27, 2013 4:33 pm
live i evil's custom 200W Amp Build
More Photos Here: https://www.facebook.com/media/set/?set ... d91ada0316
Current State of This Build
Electrically Complete
[youtube]http://www.youtube.com/watch?v=x2VTdbUHTuM[/youtube]
This amp is a mashup of a few different ideas. The preamp at its base is a Superlead/Superbass but there is an additional EF86 input. The amp can be run with all 3 inputs in parallel (dark, normal, and EF86) or using the Boost switch the signal from the Dark and Normal can be mixed then cascaded into the EF86. All 3 inputs have gain controls, and all gain controls work in either Boost setting. The EF86 has a variable Mode control which allows it to operate as a pentode or triode strapped pentode with infinite adjustment between either Mode. The EQ is a follower driven FMV with added Shift control. Pre-Phase Master Volume with a Presence control. The phase inverter is right out of a Ampeg V4, driving a quad of KT88s. Power supply is fairly close to a DR201 with 650-670V plate, and 410-430V screen.
[soundcloud]https://soundcloud.com/dunwichamps/dunwich-amps-iron-pile-custom[/soundcloud]
[youtube]http://www.youtube.com/watch?v=vWwGvBxhovk[/youtube]
[soundcloud]https://soundcloud.com/dunwichamps/dunwich-amps-iron-pile[/soundcloud]
[soundcloud]https://soundcloud.com/dunwichamps/dunwich-amps-iron-pile-1[/soundcloud]
More Photos Here: https://www.facebook.com/media/set/?set ... d91ada0316
Current State of This Build
Electrically Complete
[youtube]http://www.youtube.com/watch?v=x2VTdbUHTuM[/youtube]
This amp is a mashup of a few different ideas. The preamp at its base is a Superlead/Superbass but there is an additional EF86 input. The amp can be run with all 3 inputs in parallel (dark, normal, and EF86) or using the Boost switch the signal from the Dark and Normal can be mixed then cascaded into the EF86. All 3 inputs have gain controls, and all gain controls work in either Boost setting. The EF86 has a variable Mode control which allows it to operate as a pentode or triode strapped pentode with infinite adjustment between either Mode. The EQ is a follower driven FMV with added Shift control. Pre-Phase Master Volume with a Presence control. The phase inverter is right out of a Ampeg V4, driving a quad of KT88s. Power supply is fairly close to a DR201 with 650-670V plate, and 410-430V screen.
[soundcloud]https://soundcloud.com/dunwichamps/dunwich-amps-iron-pile-custom[/soundcloud]
[youtube]http://www.youtube.com/watch?v=vWwGvBxhovk[/youtube]
[soundcloud]https://soundcloud.com/dunwichamps/dunwich-amps-iron-pile[/soundcloud]
[soundcloud]https://soundcloud.com/dunwichamps/dunwich-amps-iron-pile-1[/soundcloud]
