by Robin Vincent | 4,8 / 5,0 | Approximate reading time: 1 Minute
Miniature synths

Miniature synths  ·  Source: RLT Rolt

ARP 2500

ARP 2500  ·  Source: RLT Rolt

EMS Synthi

EMS Synthi  ·  Source: RLT Rolt

Voyetra Octave

Voyetra Octave  ·  Source: RLT Rolt


Jupiter-6  ·  Source: RLT Rolt

Yamaha CS80

Yamaha CS80  ·  Source: RLT Rolt

Kawai SX-240

Kawai SX-240  ·  Source: RLT Rolt


Ronaldo is a graphic designer and maquette (model) maker who produces exquisitely hand-made models of classic synthesizers. We asked him to tell us about it.


Ronaldo Lopes Teixeria Rolt

Well, I’m an Illustrator and graphic designer, but I always loved making maquettes as a hobby, I have made houses, Star wars spaceships…and 3 years ago I started making a series of montages about the great prog musicians like this one:

Prog rock montage

Prog rock montage

…and after making a lot of these, I noticed that I put a mini-Minimoog in Wakeman’s hands, and then I have the idea to make a real one in miniature. I liked the result and started making all famous vintages keyboards used by the great prog bands and keyboardists.

Ronaldo has been showing them at exhibitions in his home country of Brazil but since the pandemic he’s branched out online. Earlier in the year his creations were featured in a trailer for the UVI Vintage Vault 3 collection of virtual synths and they look magnificent.


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The synths are made mostly from balsa wood to 1/6 scale and can take anything from a couple of days to a couple of weeks to make depending on the complexity.

He’s made synths for people all over the world including the likes of Michel Geiss, Jordan Rudess, Dina Pearlman, JJ Abrams and Colin Fraser.

His latest creation is the Kawai SX-240.

Kawai SX-240

Kawai SX-240

Ronaldo regularly posts images and videos of new creations to his Facebook and YouTube channels and it’s well worth a browse. If you’d like something made for you just get in touch via the socials. Prices range from $50 to $450 but usually come in around the $150 mark.

More information

Image Sources:
  • Prog rock montage: RLT Rolt
  • Kawai SX-240: RLT Rolt
Miniature synths

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2 responses to “Synths in miniature: The extraordinary work of Ronaldo Lopes Teixeira Rolt”

    LEEder says:

    What an original hobby, looks like nice quality work.

    Zippy Kid says:

    they’re not working!

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