Posts by frankfrank@runbox.no
14 total posts13 results
Beolab 5000 (1967) owners
in General Discussion & Questions · Jul 20, 2021 17:36I'm no quitter, but I find the schematics for this amp hard to read. There is something wrong in my pri-amp. Now I have the same sparkling noise on all inputs. A weak ago it was only phono & Mic. On the right side, I mea…
Beolab 5000 (1967) owners
in General Discussion & Questions · Jul 15, 2021 17:50Thanks, but the fault comes at the same time on Phono and Mic. So it has to be a common component. It has been playing flawlessly for 2,5 hours now, until the bonfire just returned. The bonfire is thinner in Mic than on …
Beolab 5000 (1967) owners
in General Discussion & Questions · Jul 15, 2021 16:15Dillen, Since the problem is in the phono stage and Mic only, I'm thinking is has to be a problem with preamp 1 or amplifier 2, right side. I have used the gold muse caps on that whole board, exept the four bigger caps, …
Beolab 5000 (1967) owners
in General Discussion & Questions · Jul 14, 2021 19:55I used mostly general electrolytic capacitors. But sure, you are onto something I didn't think of. I understand you are NOT supposed to use to high spec capasitors, right? All values are directly replacements, with some …
Beolab 5000 (1967) owners
in General Discussion & Questions · Jul 14, 2021 15:56Hi. Is the Phono and the Mic input crossing signals on the priamp? I have changed all electrolytic caps(not tantilum) and transistors, but after playing vinyl for 30 mins, i get some awful distortion in the right channel…
Beogram 1700, tech help needed
in BeoGram · Jun 25, 2021 09:56Hi I had the same problem with mine. It was related to the three black rubber bushings on top of the motor. They had gone bad and the angle of the motor was wrong. One rubber bushing sits alone, the two others are around…
Privat survey of Beolab 5000 - Beomaster 5000 producs
in Imported Content (Unmapped) · Apr 16, 2021 15:04Privat survey of Beolab 5000 - Beomaster 5000 producs
in Imported Content (Unmapped) · Mar 18, 2021 16:45New Beolab 5000 arrived from UK. Nice condition. Going to change the main cap and filter caps, then check how it looks. I had 60V main voltage and some 30V centre-voltage when I did a quick check today. Beolab 5000 Seria…
Beolab 5000 diagnostics
in Imported Content (Unmapped) · Mar 17, 2021 09:07All good, it was transistor 336, a BC154 that was faulty. Replaced with BC557BTA and now working fine. What about the heat-problem on the resistor for the main light. Any well known solution for that?
Beolab 5000 diagnostics
in Imported Content (Unmapped) · Mar 16, 2021 18:51Hi I have tried to search for a thread that describe diagnostics 101 for the Beolab 5000, but cannot find any. I just purchased a tired one for way too much money, but are getting progress now. I have sanded the rust on …
Privat survey of Beolab 5000 - Beomaster 5000 producs
in Imported Content (Unmapped) · Mar 4, 2021 09:13Thank you, it is so good to know that support is out there :) Its very impressive that you have counted 542 09 series! I overpaied for the unit, so have to dismantle everything and give it a go with sanding and painting …
Privat survey of Beolab 5000 - Beomaster 5000 producs
in Imported Content (Unmapped) · Mar 4, 2021 08:26Hi Still an old tread, but I just received my Beolab 5000 from Denmark. It was very rusty, but I think I can get it going again. The aluminum was nice, except the volume-writing has been partially worn off from the slide…
Beolab 5000 Amplifier Mexico
in Imported Content (Unmapped) · Feb 24, 2021 19:59Waiting for my Beolab 5000 to arrive from Denmark, this was so inspiring reading. Restoring to perfection is kind of an artform that I got into two years ago. Some times I feel that the worse the startpoint is, the bette…