Just replacing a Philips black resin/paper capacitor that has S4K7P printed on it. The value on my capacitance meter is 0.061μF, does S4K7P mean 0.047μF or 0.0047??
I am working on my new Franklin FH06U radio from Argentina, some little man has done a lot of fiddling with this one, the circuit I am using is for a Philips ALG00U.

Hi.

I've had the same problem myself.
A bit of net trawling has come up with this:

http://www.radiomuseum.org/forum/philips_schematic_capacitor_notation.html.

But don't take it as gospel.

Cheers.

The number is suggestive of 47. How close is the other circuit? It may be an American Philco clone?

If it is the same circuit, the value should be referenced back to it. Where is it in the circuit?

Marc

Circuit looks good Marc, I am inside the house now. It matches the component list. S4K7P would be 47 back three decimal points (K) to 0.047μF or 47000pF.
The radio is a mess of re-wiring or hacking. The recitfier is a UY41 half wave, but there is a diode soldered across the anode and cathode of the valve. The current limiter, an 8 pin tube which only has a part number now has a UL41 and using the filament as a limiter and then two large resistors in series as well. I need to sit down tomorrow night and nut out the changes and why they were changed. Probably lack of availability of valves in Argentina. The heaters are in series but all heaters are different voltages, mmmmmm !!!!

The heaters are in series but all heaters are different voltages, mmmmmm !!!!

That's typical for series heaters; in total their voltages should add up to the mains voltage or close to it. What needs to be common is their heater currents.

According to the link in my last post the "K" indicates "pf X 1000." So if this is correct, 4K7 would read 4700 pf = 4.7nf = .0047uf.

Cheers.