RS127 Brilliance Control

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JMan

Well-known member
GDIY Supporter
Joined
Oct 26, 2019
Messages
571
Location
Midwest, US
Hello friends,

I would like to share a project I recently completed! This is an RS127-style brilliance control box based on the same section of @ruffrecords wonderful REDD EQ, with a Helios-style line amp for makeup gain. I followed very closely in the footsteps of member @mike (annoying him with many questions along the way), who completed his version of this same project a few years ago. I was inspired by his build and wanted to make one for myself as well. You can see his excellent work in the Redd EQ thread beginning with this post.

This project represented a lot of firsts for me. I had never put something together purely from a schematic (although I should qualify this by saying that I really used Mike's build as a template as well). I had only ever worked with a turret board a couple of times. And I had never designed a PCB, which I did for the line amp -- you can see the journey from total disaster to functional design ("functioning disaster," perhaps?) here. I can't say how much I appreciate all of the help and support I received from the far more experienced people on this forum.

I also want to mention that I used a UTM transformer on the output. @igs is doing a great service to the DIY community, in my opinion! Check out the thread about their transformers here.

Front panel laid out by me, fabricated by Frank.

I hope you all like it! I'm in the middle of finishing up the wiring on a second unit.
 

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JMan

Well-known member
GDIY Supporter
Joined
Oct 26, 2019
Messages
571
Location
Midwest, US
Thanks, Tim! I am very impressed by the way this box sounds. All credit goes to Ian for his incredible contributions to our community.

Yes, I used a Hammond 1458C4B. First time working with one of these, and while they're a bit quirky, I have to say I think it is a perfect choice for this application.
 

cjwallgor

New member
Joined
Dec 25, 2013
Messages
1
DUDE! These look INCREDIBLE!

Absolutely my favorite EQ EVER on BASS & Vocals!!

PM me if you'd like to build another (or two!). I'd LOVE to have one!!!!
 

aaquilato

Well-known member
Joined
Feb 3, 2012
Messages
54
Thanks, Tim! I am very impressed by the way this box sounds. All credit goes to Ian for his incredible contributions to our community.

Yes, I used a Hammond 1458C4B. First time working with one of these, and while they're a bit quirky, I have to say I think it is a perfect choice for this application.
Ian is THE MAN!!
 

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