Micro Deluxe Amplifier Build - Rob Robinette

Build Rating
5.00 star(s)
So I finished this a little while ago and just got around to doing a bit of a demo as well as trying to capture various parts of the build. Unfortunately because the build from start to finish took over a year i got lazy with filming and therefore not only missed important parts but also what i did film wasnt very good!

Anyway.. this was a huge undertaking. I had always wanted to build an amplifier however was fearful of not only not being able to get it done but more importantly the dangers with working with huge voltages. Rob Robinettes site was insanely informative and the good people on FB and TDPRI gave invaluable information. The main reason i proceeded with this build is a local amp tech offered to start up the amp at his place with a variac which gave me some peace of mind.

This whole build was done from scratch, so no Kit or pre fabricated chassis. It made the journey more rewarding however the chassis prep itself was painful and intimidating.

The Amp shell i built was my first woodworking project. I had some ply cut to size and then did the rest myself. The amp is secured with a single bolt underneath to avoid it falling out when/if i need to transport it.

Ultimately i have ended up with a Tweed Micro 1-2watt amplifier. It has a master volume and mods for a bypass cap as well as NFB. About 6 months after finishing the build i decided to open it up and measure the voltages properly a) as a learning experience and b) make sure it was working as it should. This was frightening for me and yes i was given a little scare when i slipped with my DMM and caused a big spark! I guess, most of my build was done with little knowledge of the why and how..and probably reiterates the need to be very careful! regardless, everything was as it should be .

It sounds really nice and the final steps will be to build a matching cabinet. Currently it is hooked up to my laney cabinet.

Below a few pics, a video capture of the build and finally a short demo. I am not a highly capable player so noodling on the amplifier as a demo would have sounded terrible... instead i recorded a cover with the use of a few DIY pedals.

I know this is not a pedal build.. so let me know if this is the wrong place to post but i thought there would be some future amp builders who might enjoy the build.
Screenshot 2026-07-18 at 6.31.54 pm.png Screenshot 2026-07-18 at 6.32.05 pm.png


 
Nice work man, amplifiers no matter the wattage should always be given respect when you have to work on them. We do have an Amp Subforum now that is very recent that you can either post this to or provide a link back here. You do not need to delete this since it is still a build report.
 
That is awesome! I’ve wanted to build one of those for years, just never got around to it. Rob Robinette’s site is indeed a fantastic resource.

Great great great, thanks for sharing!
 
I know this is not a pedal build.. so let me know if this is the wrong place to post but i thought there would be some future amp builders who might enjoy the build.
Fabulous! There's a dedicated Amps section here that's just getting going and your build would certainly be a very worthy addition. I 've had a similar low wattage guitar amp build in mind for a very long time and wouldn't even need very many parts that I don't have on hand, but as you say it is a pretty big undertaking. Especially a from-scratch build, major respect for that aspect.
 
Nice work man, amplifiers no matter the wattage should always be given respect when you have to work on them. We do have an Amp Subforum now that is very recent that you can either post this to or provide a link back here. You do not need to delete this since it is still a build report.
Ah! I wasn’t aware of that. Maybe I’ll do the link ! Thank you :)
 
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