[PeteV]

Yes, that is true.

But when he does show the arm tracking backwards (almost as a aside), it shows a massive deviation before it starts moving, which mine does as well, maybe as much as 10mm? It is way too much deviation to copensate for slightly eccentric records (of which there are many 🙄). I think the time constant on the whole system is too slow to compensate for record eccentricity anyway, so the whole reverse direction function is pretty pointless, presumably why it was removed from later models.

Anyway, I’m not going to worry about that anymore.

Thanks for your help 👃

Peter

[PeteV]

Thanks. I have been looking at his site extensively, a goldmine of information, but I had not watched this video which answers all my questions!

[PeteV]

Hmm, my images are not being shown. Let me try using attachments.

 

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[PeteV]

Thanks, Mark.

[PeteV]

1. Thanks for the comprehensive reply, Craig. I will probably do as you suggest.

[PeteV]

Thanks for that. Normally I would agree, but the reason for the question is that the service manual specifically says that both pulleys should be replaced when fitting the new triangular belt to early model BGs. While I clearly have a round section belt, the pulleys look like they are the right shape for a triangular section belt.

[PeteV]

Ah, thanks for that. It appears they indeed do have them. I shall order a pair.

[PeteV]

As far as I can measure, the paint seems to be conductive, but to be honest this is probably not relevant to repairing/repainting small areas. The main issue would be colour match. As far as I can see, it appears to be a very dark matt grey colour.

 

[PeteV]

Hmm, am I the only one who has this problem?

[PeteV]

Dillen wrote:

Mark-sf wrote:

Unfortunately, there is no industry standard for 12” record weight. They can range from 80-200g.

What? What makes you say that? Just because you can buy records weighing in from 80 to 200g doesn’t mean that it’s a standard. I have played a custom made record weghing more than 1Kg for a customer once. The RIAA standards are fairly clear. And you’ll be surprised how much is non-standard. Martin

Strictly speaking Mark-sf is correct. The RIAA standard for records give dimensions, not weight. However, if you look at the standard, it requires 301.6mm diameter and 1.9mm (+- 0.3mm) thickness. This gives a volume of about 134cc, and hence a standard weight of about 185 gr (standard PVC @ 1.4 g/cc), or a range of about 160 – 210g if you take into account the thickness variation. So all those old 120g records are the ones which are non-standard, not the 180g ones.

[Author]

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