The problem I have with all metal scales is that they over read cartridge load by appx. 0.1g probably due to the effect of the cartridge magnets. The new Rega scale is plastic so does not have this effect and appears well designed for long term accurate measurement and I can highly recommend it http://www.rega.co.uk/uploads/hfc-426-re-print-half-rega-guage.pdf |
@lewm funny thing is I even find this with audiophile approved scales with non ferrous pans. They record exactly the same with a static weight like a screw but once I load them with a cartridge they’re all over the place. Could it be that the strong magnets in a cartridge affect the mechanism not just the pan? Anyway I trust the design of the Rega (just like the cartridge man scale I owned before, although that was really prone to breaking down due to its battery design) and it’s one thing I no longer need to worry about |
@jbny unless you have calibration weights that are magnetic and non magnetic you will not see the effect we’ve been discussing my scales all weigh the same with calibration weights, but once you use a MC cartridge it’s a different matter. And most of the China sourced metal ones read the same, no doubt because they share the same internal electronics. It’s only the custom designed plastic ones that give different results now most setups will not be sensitive to +/- .05g VTF but unfortunately mine is, needing 1.70-1.75 exactly to perform at its best so I have no choice but to pay the $150 cost of entry for the Rega |
@lewm as I said in my last post my experience is that even scales with non magnetic pans suffer from magnetic interactions. I own several scales with such pans and all read differently than my all plastic options (cartridge man and rega) - and all read exactly the same with reference weights (which are not magnetic) |
@lewm I’d not expect their to be any noticeable attraction (we’re talking about .1g of effect which I’m sure you could not feel) the test id like to run (which I will when I get home) is to load the platform statically with something non magnetic and then bring a magnet close to the scale and see if the weight reading changes I.e. if the magnetic field has an effect on the weighing mechanism itself. I’ll report back on what I find out |
