Login to view image

I just finished a refresh of this Beomaster 4000. This receiver was a good example of why one shouldn’t just grab a spray can of “contact cleaner/lubricant” and spray indeterminately to fix a noisy potentiometer or switch. Whatever product the previous owner used seeped everywhere inside the receiver then turned into a hard waxy substance. Fortunately, I was able to fully disassemble the receiver and clean the “gunk” out of the chassis, sliders and switches.

My plan for the receiver is to pair it with four Braun speakers from the same era. Braun speakers are actually somewhat rare in the US. I like to assemble systems with a theme. This will be my “70’s Euro-system”. I’m guessing that most of the forum members would just call it a “70’s system”   ;-)

I’m looking forward to experiencing the Ambiophonic feature. Does anyone have suggestions for era-appropriate recordings that highlight this feature?

Glitch

Finishing up my 6000. Seems to have endless problems, but I'm nearly done now (i hope).

 

Login to view image Login to view image

link

link

I’m back in the US for a little while so I’m trying to sort out one of my other previous acquisitions, BL Penta MK2. They need the full overhaul so I bought all 3 cap kits and new foam surrounds. These will be the main L/R channels in the master bedroom and the basis of a surround system (eventually!). Login to view image

Looking forward to seeing/reading some more on this project.

Thats ALOT of work ..Let us know how it went Jess

Yesterday I got a Beogram CD5500 for 10€ + shipping. Someone took it appart and damaged it terribly. (I think "slaughtered" is a better word) It came with 2 CDM4 drives.

The white case and the front still look very good, so it's probably worth working on.

In the meantime, it is already playing with one of the two drives again.

After replacing the usual C2103 on the drive PCB, the left channel was back. After a bit of measuring I found out that the resistor R126 which is connected between the right OP amp and its -15V supply was defect. Now after the exchange it plays nicely on both channels again. Now I "only" have to clean up the damage that was done before. To do this, I first need Martin's rubber mountings for the drive. (They were cut through). Fortunately, all the other parts seem to be there and I have a CD7000 where I can see how everything belongs together.
There were two drives. One CDM4/11 that works and one CDM/4/13 that doesn't work and has a broken mounting hole.
Does anyone happen to know which of the drives originally belongs in this player?

 

link

link

link

I’m back in the US for a little while so I’m trying to sort out one of my other previous acquisitions, BL Penta MK2. They need the full overhaul so I bought all 3 cap kits and new foam surrounds. These will be the main L/R channels in the master bedroom and the basis of a surround system (eventually!). Login to view image

Looking forward to seeing/reading some more on this project.

Thats ALOT of work ..Let us know how it went Jess

Hey Jess - it definitely was a lot of work and still is! The project lives on when I have time for it. You can find the full write up here:

link

Login to view image I just finished a refresh of this Beomaster 4000. This receiver was a good example of why one shouldn’t just grab a spray can of “contact cleaner/lubricant” and spray indeterminately to fix a noisy potentiometer or switch. Whatever product the previous owner used seeped everywhere inside the receiver then turned into a hard waxy substance. Fortunately, I was able to fully disassemble the receiver and clean the “gunk” out of the chassis, sliders and switches. My plan for the receiver is to pair it with four Braun speakers from the same era. Braun speakers are actually somewhat rare in the US. I like to assemble systems with a theme. This will be my “70’s Euro-system”. I’m guessing that most of the forum members would just call it a “70’s system” Login to view image I’m looking forward to experiencing the Ambiophonic feature. Does anyone have suggestions for era-appropriate recordings that highlight this feature? Glitch

Nice work. Really clean 4k you have there! I can't wait to work through my BM4k. I have a BG4002 with CD4 built in and can't wait to get the duo playing together one day.