MADE IN THE USA
The Howchon5F1 a "clone" of the classic Champ amp, built with a toroidal power transformer and mercury magnetics output transformer.
It will fit the 5F1 cabinet.
This one has a 5U4 rectifier, 6N6 (Soviet) power tube and pre-amp.
Demo: (3) Howchon5F1 with tone clone OT - YouTube
Pure analog signal input to output silicone free.
The tubes are NOS Soviet power tubes and preamp vintage rectifier.
The circuit board is a custom made Pc board. All new components.
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.
2 input jacks and one output jack.
Connected to a vintage 8” speaker, 8 ohms.
2-amp fuse.
International buyers please inquire for shipping estimate.