I have Technics SP 10 Mk2A turntable that I am using with Technics SH 10E power supply unit which was for SP 10Mk2 and not the SP 10mk2A . The STRANGE! thing is that my turntable is working very well with the this older 10E power supply meant for the SP 10Mk2 please the letter A in the model number is the newer version of the SP 10 Mk2 . Iam a little concerned as the back of my SP 10 Mk2A says to use it with only SH 10E"A" power supply the A in the model number being for the SP10mK2A. Will some nice soul advise me?!! THANKS!
Just to mention that when a PSU says it must be used with A Certain Gizmo it means that the PSU is designed and meant for use with A Certain Gizmo, which makes perfect sense as revision A may not have been on their mind at all.
A manufacturer does not want to make something people can use in different ways and still honor the warranty, when they use combinations that will not work well, especially against guidance not to do so - and common sense.
Some uses may work out well, while other uses will shorten the life of the devices or one of them.
I am pretty sure that had Technics anticipated there would be more revisions, minor or major there would still be a firm indication of which gear the power supplies are used with as far as the corporate warranty is concerned.