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Ted Kendall · 29th Aug 2019, 8:56 am

I'm resurrecting a Woelke ME101 wow and flutter meter which has seen better days. Damp has done its work, and among other things one of the preset wipers has corroded and snapped off. The circuit diagram shows it as 100K NTC. The requirement is plausible, given that it is involved in the setup of the oscillator, but I don't think I've ever heard of such a thing, never mind seen one. Anybody know different? It looks the same as the other presets in the unit - skeleton Paxolin - which have no special indication.

29th Aug 2019, 8:56 am	#1
Ted Kendall Dekatron Join Date: Jul 2008 Location: Kington, Herefordshire, UK. Posts: 3,670	NTC preset? I'm resurrecting a Woelke ME101 wow and flutter meter which has seen better days. Damp has done its work, and among other things one of the preset wipers has corroded and snapped off. The circuit diagram shows it as 100K NTC. The requirement is plausible, given that it is involved in the setup of the oscillator, but I don't think I've ever heard of such a thing, never mind seen one. Anybody know different? It looks the same as the other presets in the unit - skeleton Paxolin - which have no special indication.