Franck 78
Student
I recently got 3 MS9-29 for ~$100, a good deal 
Stored on the shelf of an 'exploitant' (someone having lot of machine in cafés/restaurant) for 15 years.
Recaped 2 of them, one is OK and the other one add this strange distortion:
It was C955 not installed (by me). The 7812 is unable to provide a correct flat voltage and C957/C958/L953 can't do anything. The direct translation to screen is this bizarre inflate
Pincushion and trapeze had no chance to correct this.
I suppose a failing cap can also do that.

Stored on the shelf of an 'exploitant' (someone having lot of machine in cafés/restaurant) for 15 years.
Recaped 2 of them, one is OK and the other one add this strange distortion:
It was C955 not installed (by me). The 7812 is unable to provide a correct flat voltage and C957/C958/L953 can't do anything. The direct translation to screen is this bizarre inflate

Pincushion and trapeze had no chance to correct this.
I suppose a failing cap can also do that.