Beogram 1000 – Motor issue and technical question

[Paul de Kock]

Hello everyone, I hope this finds you well.

I have 2 Beogram 1000’s that appear to be seized. The sintered bearings have green deposits and these haven’t been used for decades. As a result, I have test ordered a new set of bearings to see if these motors can be recovered or whether they are writeoffs.

My main question is that I have seen a posting in the archive forum in regards the resistance of the windings. According to the post, it is stated that the motor in good condition has coils that read as 222 ohms, with a deviation between them of no more than 5%.

The readings of my motors are ..

Motor 1: 210.6 ohm and 217.4 ohm

Motor 2: 211.8 ohm and 214,8 ohm

I calculate the deviation between coils to be within tolerence, but the base readings seem to be low ?. Could anyone please advise as to whether this is an issue or whether the motors should be ok with new bearings fitted to the motors ?

I’m sorry if this appears to be an amateur question and hope someone could please give me some input on this question.

Kind Regards

[Mark-sf]

As far as the coils go those readings should be fine. Hope your restoration goes well.

[Tim McCormack]

I just got a Beogram 1000, it’s not working, the electronics inside look like someone has had a go, the wire on the right looks like it’s totally missing, can anyone explain what’s missing, or give a diagram of what it should be? Thanks you

[Mark-sf]

I’m not sure which wire you believe is totally missing. If you are referring to the Red/Black twisted pair in the first picture that appears unconnected, that is normal for 1000’s not equipped with a phono PC board. Yours simply has the jumper board that directly connects the tonearm cable to the output cables which then go into a preamp’s phono inputs. What is actually not working?

[Author]

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