[sdiy] Capacitor R values?

[Richard Wentk]

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.

http://dl.lojinx.com/analoghell/RolandVP330-ServiceNotes.pdf

They\re clearly not component IDs but values. 

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.

So is this a strange way of writing F, or nF, or something else? 

TIA, 

Richard