Tube amp (but no lamp rectifier)
12 watts with EL 34 1 preamp and amplifier, 2 x 6V6 or 2 x 6AQ5A, depending on model.
1 HP 12-inch
Originally designed for bass, but used mainly for guitar (with a low, it happens, but it's still a bit limited due to the lack of power and only 12 HP ")
Very simple and therefore lightweight and easily transportable.

UTILIZATION

Super simple: 2 inputs, 1 volume, 1 tone
Basically, there is a sound ... it fast enough crunch with humbuckers.
When you push the volume, it crunch more without really increasing the overall volume

SOUNDS

Vintage sound, obviously
Excellent with a stratovolcano
With Gibson, because it's crunch quickly and it is a bit messy for my taste.
Very close to a Fender Champ or Princeton, but with a medium a little less interesting (for my taste).
HP 12 inch far bigger than 8 "field or the 10" Princeton

OVERALL OPINION

Vintage amp for a good not too expensive!
It is a credible alternative to other Fender Silverface, even if the sound of Musicmaster seems a little worse than the Champ or Princeton.
But must still find it! It is rare indeed in France.