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  • Re: Replacement IC's

    Ah, I was a bit too quick to answer there! The TBA 231 has some equivalent types still being made today; Fairchild uA739 and Motorola MC1303. They have the same specifications and are just another manufacturer's version of the same op-amp, use it as a drop-in replacement. The uA739 can be found pretty easily online.
    Posted to The Workbench (Forum) by Søren Hammer on Mon, Feb 16 2015
  • Re: Replacement IC's

    The TBA 931 is not a good op-amp for audio. A lot of the earlier Revox B77's use the same IC; a service bulletin states how to replace the 931 with a more modern TL072 or similar with the same pinout. You don't have to spend money on an obsolete IC and the sound quality is better with modern IC's ftp://ftp.studer.ch/Public/Products/Revox/Revox_A700/TBA931_Replacement_Rev2.pdf Integrated circuits will usually not degrade by just sitting around, but be aware that some models of the 931
    Posted to The Workbench (Forum) by Søren Hammer on Mon, Feb 16 2015
  • Re: Beocord 5000, WOW!

    Wow!!! Audiophile CD-player?!
    Posted to eBay - the right way! (Forum) by Søren Hammer on Sat, Dec 13 2014
  • Re: Danish University students looking for participants for a B&O study

    ***** Slettet af Dillen
    Posted to BeoWorld Nordic (Forum) by Søren Hammer on Fri, Nov 7 2014
  • Re: My very own Beocord 2400

    What a nice thread! This is what I have missed Might give my own Beocord 1800 the same treatment and install her in my current system. Even two open-reel decks in one system isn't enough though... Do you want to recap and rebias them, too? @Søren: Do I spot the B&O reel that I gave you when you visited me? @Eddy: Did you get the whole 5000 system back home safely? What did SWMBO say to the Beovox'es?
    Posted to The Workbench (Forum) by Søren Hammer on Sun, Oct 26 2014
  • Re: Nakamichi Flower Lilly

    Thanks mate Have been working hard, with both my education (written assignments and practical workshop) and the spare time job - would sure love to post more here, and I'll see if I can make the time to read all the daily threads once again The plan right now is 37 hours of work as an apprentice at the maintenance department of the Danish national train service company, doing everything from metalworking, engine overhauls, test equipment calibration, PLC programming, electrician work, safety
    Posted to General Discussion & Questions (Forum) by Søren Hammer on Sun, Oct 5 2014
  • Re: Nakamichi Flower Lilly

    What a shame to put the use the once prestigious Dragon moniker on a portable speaker.
    Posted to General Discussion & Questions (Forum) by Søren Hammer on Sun, Oct 5 2014
  • Re: Ferry to Denmark going.....

    They're also shutting down the route because the ferries doesn't conform to coming sulfur emission standards for commercial vessels traveling the North Sea. It's a shame that DFDS is closing it; the line has always meant something for Esbjerg (which is my hometown) with tourists and later, goods logistics. Anyone going to Denmark? Drop by my small student's apartment in Aarhus, there's always a cup of hot coffee ready to be poured
    Posted to General Discussion & Questions (Forum) by Søren Hammer on Sat, Sep 20 2014
  • Re: Question about 4002 Turntable

    On the arm carriage module you'll see an air dampening cylinder that ensures a slow and safe descent. I've bought many "non-working" Beogram 4002's and fixed them with just taking that cylinder apart and relube it. I advise to do the same with yours and then adjust it (there's a set screw) to a drop rate of 0.5-1 second. Remember to apply some nail polish so the screw can't move.
    Posted to BeoWorld North America (Forum) by Søren Hammer on Sun, Sep 7 2014
  • Re: Beomaster 7000 din to din turntable amp for beogram 5500?

    With a little soldering skills you could make an adapter cable like this: 7-pin DIN female (from Beogram 5500) ---> a pair of RCA plugs and the two leads from the Datalink system (remote control bus) are put straight into a 7-pin DIN male plug while the RCA plugs into the RIAA preamplifier, two RCA plugs return the signal into the male DIN plug and then into the Beomaster. This might simplify it: As far as I know, there is a tiny difference between line level inputs and turntable inputs - the
    Posted to General Discussion & Questions (Forum) by Søren Hammer on Sun, Jun 1 2014
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