Hi all, I have completed a restoration of my Beocord 2200 (Type 4601) - 1976 vintage. The tape head is the last remaining piece of equipment which needs taking care of. Even before the restoration, the sound was pretty muffled, with reduced frequency response, and very muted highs. Wear grooves (very undesireable) are visible on the head. Unlike a phono

Hi Mika, Always such a pleasure hearing from you! Actually, our line voltage varies from 227VAC to 237VAC, so I set all my electronics to 240V, where possible. So, it is still running hot with the selector even set at 240V. You seem to be pretty locked on the idea that 0TR1 is the cause of the heat dissipation, and the BG6000 casing is a giant heatsink

I have measured all voltages in the circuit as shown on Service Manual page 3-5. All voltages leading to the motor are spot-on: 0TR2 and 0TR3 Emitters are 11.36VDC (11.4V required); 0TR2 Collector is 22.7VDC (22.8V required). The only possible discrepancy I can see is the AC Voltage across the motor - either side of the 150uF Bipolar, is showing 8.2VAC

Hi Jeff, Actually, I can recommend an excellent ESR meter at a good price. Bob Parker in Australia invented it, and then Vito Manuel in Portugal perfected it. Vito gives first class after-sales support. I've had it now for over 2 years, and it is fantastic at finding bad caps. Google EVB ESR meter. Multimeter: I can recommend the Uni-Trend UT58D

Hi Derek, My Collector and Emitter voltages are pretty close to the numbers in the Service Manual. The Base voltage is not shown in the Service Manual. Could you measure the voltages off your 2N3055, and I'll compare them to mine? Thanks Menahem

Hi all, I've just been working on a BG6000 with the AC motor. I may be wrong, but this machine definitely appears to be hot, after playing an LP. The aluminium base at the left front corner is HOT. Now, I took out the motor, a Sonceboz 1112 - made in Switzerland, with the hope of opening it up to clean and relubricate, but I couldn't find any

Hi all, I have a BG6000 which someone from the Finchley, London area will bring me. She needs a Hardshell suitcase to pack it in, for the journey. All being OK, the kind loaner should have his/her suitcase back in 3 weeks. If anyone in the local area can loan us one, it will be much appreciated!!!! Regards Menahem Yachad

Hi Ben, In the 1999 B&O Accesories Catalogue, on page 13, are listed 2 RIAA Preamplifiers 1. Part 8002956 for the BeoMaster 3500/4500 2. Part 8001245 for the BeoMaster 6500/7000 Now, the challenge is to find one! And then to upgrade the capacitors and OpAmp, and THAT will be an RIAA amp worth listening to! Regards Menahem

Hi Mika, Looks like we're on the same "wavelength" here! Isn't it a bit early yet for summer in Finland? You're absolutely correct - it is the sliderule / carriage sensor. Like yours, that was a similar problem with mine - the arm would not recognize the 45 position. I did try the normal repair, which is to adjust the incandescent

Thanks Mika! Can you give me some Manufacturer part numbers to look for? Thanks M Y