[Ron Ramirez]

We're posting at the same time, Mike_RF (and Mike/morzh).

Regarding electrolytics - I used 6.8 uF, 630V Solen Fast film capacitors (close enough to the original value of 6 uF), and restuffed my Mershon capacitor cans. I suggest you read all nine chapters of my Philco 90 rebuild on my blog, plus the extra chapter on the speaker rebuild at the end of the model 90 series.

But to answer your question - sure, 10 uF is fine provided they have a working DC voltage of 450 volts minimum. Most of us used those before the Solen Fast film caps became available in recent years - and before many of us learned how to open up and restuff those electrolytic cans.

The advantage of using Solen Fast film caps is that they should never go bad - at least, not in our lifetimes. Electrolytics, even if good quality caps such as 105 degree Nichicon or Panasonic units which can tolerate high ripple current, will still have a finite life and will (eventually) have to be replaced again. The disadvantage of the Solens is that they are physically huge - they fit inside the old electrolytic cans, but not so easily under the chassis.