Retrofit your Tribute v1.3 Bass Preamp to US Spec

[bassfisher887]

I'm in the process of performing this upgrade as well. I decided to go with the TL071 op-amp when I ordered the parts. The PCB has be stripped of all the old components and I'll be working on installing the new ones soon.

I've been trying to come up with a way to insulate the board when it goes back into the control cavity. The original foam wrap didn't survive the removal process. I'm thinking of a large shrink tube slipped over the PCB. Are there any other solutions?

[Ken Baker]

I've been trying to come up with a way to insulate the board when it goes back into the control cavity. The original foam wrap didn't survive the removal process. I'm thinking of a large shrink tube slipped over the PCB. Are there any other solutions?

Heat shrink ought to work. Just don't shrink it too much; just enough so it stays on.

Ken...

[Karl Kaminski]

Hi
I cut a section of bicycle tube. disconnect one side of the Pre leads, slide it on.

[bassfisher887]

I completed the update of my Preamp. Though for C5, I was only able to source a 200V cap from Mouser instead of the recommended 100V. It's quite large. I have since gotten a 100V from DigiKey and I'm curious if its worth the while to swap it out. I'm thinking yes in order to get some space savings in the control cavity.

Updated Preamp

Updated Preamp

Pre-Amp 1.3 Updated (sm).jpg (81.1 KiB) Viewed 794 times

Smaller Capacitor

Alt Cap

Pre-Amp Small Cap (sm).jpg (58.91 KiB) Viewed 794 times