Hand-built amplifiers & restored electronic pianos

Tropical Fish is a vintage electronics workshop. We restore Wurlitzer electronic pianos and other classic keyboards, build new amplifiers inspired by vintage design principles, and offer technical resources intended to keep the instruments we love alive and playing.

keyboard restoration →

Restore your vintage Wurlitzer or other electronic piano to the tone and responsiveness it had when it was new.

Instrument amplifiers →

Shop handmade tube amplifiers inspired by our favorite vintage sounds. Or, inquire about a custom amplifier for your Wurlitzer electronic piano.

technical guides →

Read guides on how to repair vintage electronic pianos and amplifiers, or ask us questions about how to approach your specific instrument.

parts shop →

Browse the parts, tools, and material that we use ourselves in our restorations.

tropical fish archive →

Browse thousands of Wurlitzer Co. technical documentation that had been rescued from the Wurlitzer electronic piano and organ factory.

Featured Products

Wurlitzer 720 electronic piano — Reservation
$1,000.00

The 720 is the Wurlitzer lover’s Wurlitzer and possibly our favorite model. Perfect for the studio, the music writing space, and, hey, it’s not that heavy—take it to a show.

Reserve this instrument now for a comprehensive mechanical and electronic restoration by Tropical Fish, including felt replacement, regulation, tuning, voicing, and installation of a custom-built tube amplifier.

Full purchase price: $6,250 Reservation deposit due today: $1,000 Remaining balance due upon completion: $5,250

Your deposit is credited toward the purchase price and reserves this specific piano for you. Estimated completion is approximately 12 weeks from the date of reservation.

Ask us about this keyboard! We are happy to answer questions about the Wurlitzer 720, the restoration, or delivery. We’re happy to help you decide whether this 720 is right for your space and the way you play.

Tropical Fish Satellite 248 speaker cabinet
$485.00

I wish I could say this was an experiment, but we always knew the 4×8” speakers sounded good for guitars as well as keyboards actually. It just hadn’t immediately occurred to us how we could flexibly make use of them.

The Satellite 248 speaker cabinet uses two 4x8” oval speakers with ceramic magnets and paper cones. Their relatively small radiating pattern gives the cabinet a compact sonic character that is punchy and articulate.

Yamaha PSR-2100 keyboard workstation (2003)
$425.00

The Yamaha PSR-2100 is a 61 key workstation that has made its way into our must-have keyboard list. Primarily because, it has a solid Wurly sound, and it has a solid Rhodes sound. That alone should be enough, but it has very solid pads and organ sounds too. Its built in speakers are also robust, making it a great writing tool. The wide range of outs make it a powerful recording tool. 

Some key features of this keyboard include:

  • Front facing speakers (that sound really good!)

  • Really good e piano and synth pad sounds (plus a lot more sounds to discover)

  • USB connectivity

  • Line outputs

  • Over 800 voices (great keyboard sounds and pads!!)

Peavey KB-60 Keyboard amplifier (#2)
$135.00

The Peavey KB-60 is a versatile instrument amplifier with spring reverb. It is made in USA and is kinda built like a tank.

Handmade Baltic Birch and Vintage 12" speaker cabinet
$195.00

Very solid, high-quality birch ply cabinet loaded with a 12” vintage paper cone speaker. Light weight, and minimal in overall dimensions, ideal for taking to performances, or using around the studio.

Tropical Fish M3 tremolo preamp in walnut
$1,850.00

More coming soon. Every preamp in the initial batch has sold. Let us know if you are interested in a unit from the second batch by joining the M3 waitlist.

The Tropical Fish M3 is a handmade, hand-wired, all-tube preamplifier that provides warm, clean gain and tremolo effects for instrument-level signals. The optional Wurlitzer input provides clean voltage to power a Wurlitzer electronic piano electrostatic reed bar.

The solid walnut cabinet and the electronics are both handmade by Tropical Fish. Wood grain and similar details may vary slightly from amp to amp. The appearance of the rear knob may change as we work through our supply of vintage and found knobs.

Projects Division

Special Instrument Projects


Restore or Develop a unique or rare instrument 
KEYBOARD RESTORATIONS


Restore playability & tone in your vintage analog keyboard
Custom amplifier builds

Vintage-inspired designs optimized for recording & performance
Electronic piano Sourcing service

Use our years of  experience to find a dream instrument 

Explore Tropical fISH

A hand holding a Tropical Fish electrostatic preamplifier device outdoors against a backdrop of trees and a blue sky.
tropical fish M3
our hand-wired vacuum tube preamplifier for guitar & ep
A view of the inside of a piano with visible hammers and strings.
wurly hotline
it's back! 
ask us anything about fixing keyboards
Room filled with stacks of papers and files on desks and shelves, a vintage electric piano, a warm table lamp, a plant, and framed artwork on the wall.
TROPICAL FISH ARCHIVE
~75,000 Wurlitzer Co. engineering drawings & documentation