Jeff, Regarding the tracking sensor. Don't adjust using the clamp screw. Instead losen the fixation screw sitting at the bottom under the sensor arm. Then adjust using the excentric screw just to the right. This will adjust the light sensor rather than the interrupter. Lock again using the fixation screw. Martin

The speed setting trimmers can go bad and the speed switching relay contacts need cleaning. New belts are in stock here. Martin

B&O used european valves for the majority of their production. I never stumbled upon a 6GV8 valve in any B&O. It's more or less equivalent to ECL85 which is used in vertical deflection circuits so it may have seen use in 50's TV's. I have some servicemanuals of B&O's early TV's so I could look it up but I'm afraid

No offense taken, my friend. I completely understand your frustration. One more thing; Check the cables from the tacho sensor and that the sensor is in it's correct position. Your Beogram 4000 is most welcome here. I can service 110-120V units, no problem. If you ship the 8000 board with the BG4000, I will take a look at it too. Martin

Could be as simple as dirt accumulated on the capstan. Try cleaning it using cotton buds and tapehead cleaner. Martin

Jeff, 1. Doublecheck all the caps. 2. Check for cracked solders, especially at the connectors along the edge of the board and in the power supply connector/rectifier diodes areas and where the ribbon cable from the CPU casing is soldered into the main board. Resolder them all even if they look fine. 3. Make sure you established the connection at the

- and from me too ! Martin

Welcome to Beoworld ! Probably just a fuse. Normally there's a very good reason for a fuse to blow but I've seen many cases of blown fuses in Beolab Penta's where the fuse was the only faulty component. There is a small cover at the bottom of the amplifier. Remove this (one screw, I think) to gain access to the fuses. Martin

If I remember correctly, it's merely a matter of adjusting the position of the "ruler" inside the deck, held by three screws. Move it towards the right apprx 1-2mm and it'll be fine, I think. Martin

Welcome to Beoworld ! Why not make that website yourself ? You could start by scanning and sharing yours. Martin