It's usually the magnet and the center piece that breaks lose. They are glued in place and the center piece will be sucked to one side when the glue breaks, squeezing and blocking the coil completely . Martin

I have a knob. Smooth chromed brass for 6mm axle and with pointer dot. Most pinball lamps are wedge or bajonet sockets, you need E10. Martin

That is very hard indeed as you will also see if you do a search here. We've had this sad issue several times but whatever you do, hold on to the original woofers, there's a good chance that a repair will be possible in the future. Martin

There are a couple of fuse holders at the side of the chassis, near the transformer, that are usually OK. The problem one is the one mounted on the main board and it seems to be a common fault. Fit 7V dial lamps and they will last much longer. The knobs are not just knobs... There are many different types used on Beomaster 900. - Some are smooth (treble

I experienced with this a couple of years ago and made some in vinyl with inside printing so it won't wear. I may have some of the prototypes still around if that will do. Martin

Scary story. You can have your listing fees refunded from EBay if the deal didn't take place. Martin

Fine billeder. Det var bare ikke den CDM 12 version, jeg regnede med at se. De "store" elektrolytter bør nok stadig skiftes men prøv lige at checke om den kan fokusere, dvs. om linsen kan bevæge sig uhindret ud og ind (i retning mod - og væk fra CD'en) uden at skrabe på den metal plade (ca 3-4mm bred og

- så poster du et foto af printkortet her i tråden. Martin

You have an answer to your PM. Martin

How about Shift-Sound ? Martin