<div dir="auto">Hi Richard,<div dir="auto"><br></div><div dir="auto">Yes, if you look at the last page in the parts list in Capacitors part number 032-275 gives a strong clue that the "R" is used for mu.</div><div dir="auto"><br></div><div dir="auto">Neil</div><div dir="auto"><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, 10 Oct 2020, 17:54 Richard Wentk, <<a href="mailto:richard@wentk.com">richard@wentk.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I’m looking at the circuit of the old Roland VP330 and some of the capacitors are labelled “R0xx” - e.g. in the formant filters on the HVH56 board, where C1 to C4 of Filter 1 are R056.<br>
<br>
<a href="http://dl.lojinx.com/analoghell/RolandVP330-ServiceNotes.pdf" rel="noreferrer noreferrer" target="_blank">http://dl.lojinx.com/analoghell/RolandVP330-ServiceNotes.pdf</a><br>
<br>
They\re clearly not component IDs but values. <br>
<br>
The only mention I can find online suggests this is shorthand for F, equivalent xRy for small resistors. But 56uF caps that aren’t electrolytics seem unlikely.<br>
<br>
So is this a strange way of writing F, or nF, or something else? <br>
<br>
TIA, <br>
<br>
Richard<br>
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