The Howchon5E9-A, a "clone" of the Tremolux, built on a vintage chassis and
Hammond transformers. 
One tube tremolo with speed & intensity control.
This one has a 5U4 rectifier, 6N6 (Soviet) power tubes and pre-amp/tremolo,
and a 12AV7 preamp tube.
Made in the USA.
Demo: Tremolux 5E9-A clone, one tube tremolo. (youtube.com)
Tremolux clone 5E9-A tremolo tube amp (youtube.com)
Handmade from vintage Hammond organ chassis.
Volume 1, Volume 2, Tone, speed & intensity controls.
Pure analog signal input to output silicone free.
The tubes are NOS Soviet power tubes, preamp & tremolo, vintage rectifier & input tube.
The circuit board is hand wired perf board. All new components.
All new pots for two volumes, tone, and speed & intensity control.
Separate toggle on/off switch to help isolate AC from signal.
Neon bulb power indicator also helps to isolate AC.
Grounded inputs to eliminate hum. 
Earth grounded to chassis.
Vintage tube sockets.
2 input jacks and one output jack.
The chassis is about 20” wide x 5” deep x 2 1/2" high, and about 6" to the top of the tallest tube.
Connected to a vintage 8” speaker, 8 ohms.
2-amp fuse.
International buyers please inquire for shipping estimate.