There are two 4A and one 630mA, all slow blow. As a gold member, you can download the service manual from our main website. It's all in there. Martin

Get both ! The Beomaster 2000 (if the 1970's version) is a beautiful receiver with a superb sound. There are a few common faults but not many and all are fixable. The Beomaster 1700 may not be a technical wonder but it is a unique design and most tractor belt problems can be solved. Reproduction rubber clutch "washers" are available. Martin

Despite what most people think, the smaller the amplifier, the greater the risk of distortion and burned tweeters. The MS150s are a bit hungry though not extremely so, and they will probably work fine with a 60W amplifier and as long as you keep the sound clean, you will not destroy anything. Actually most speakers will handle a lot more power than

A microscope is a good thing but may not always tell you how the stylus sound. A tangential deck will wear the stylus "sides" slightly more even than a radial deck, that's right, but having said that, B&O's radial decks are all going very gentle on the stylus and my experience is that the difference isn't really that huge.

There is a little PCB board piggyback riding on the right side of the tonecontrol module. Try re-seating this board. Martin

Sounds like a good plan ! Martin

Your ears are the best judges, really. Alternatively, buy a new cartridge and compare the two. Martin

I'm sure, I can find one. Martin

The woofers are 6,4 Ohms and in my experience you won't find any good modern substitutes. Having the original woofers refoam'ed is the best and cheapest solution in my opinion. Depending on your location, there are both pro refoam'ers and other trained guys that can help you. I'm in Denmark and your woofers are welcome here. A capacitor

Did you break a component ? Martin