1 Bob Howard 5 months ago I picked up an old Magnatone (?) amp on Reverb for a couple of hundred bucks. I wasn’t expecting much. Looked like a barn find. When I opened the box, I was a little surprised at how grimy it looked in person, but I don’t mind roughed up looking tweed. I’m moderately sure that the cabinet is that of a Magnatone M-192-5, but the amp chassis and arrangement of tubes, knobs and jack doesn’t look like the pictures I can find for these amps. I’m thinking it’s been replaced with a totally different amp.The chassis is smaller than other pix of the M-192-5 I've seen and it only has one input jack instead of the normal 3. It looks almost home-made. But here’s the kicker. It sounds fantastic. Creamy goodness. This old Jensen 10" speaker sounds so full.After playing it awhile I think it’s maybe a little too scooped. It seems to be louder when I play the two high and the two low strings, louder than the D and G strings. Same on three different guitars that act normal on other amps. Also, once in awhile it pops. It makes a snap sound and the volume goes down for a split second and right back to normal. Does it sound like a failing tube?