I'm working on a Dirtbag Dx and wanted to use 1uf poly caps in place of electros where possible. I compared the Dirtbag to the Total Recall which has three 1uf poly caps. Only problem is that one of these caps is listed as a 4.7uf on the Dirtbag schematic (See pic below for comparison of schematics). Is it okay to use a 1uf poly in this spot or is the 4.7uf required for the Dirtbag version?
(https://uploads.tapatalk-cdn.com/20201012/7040212f0ee04a1323849ef124a5940b.jpg)
It should be a 4u7, Bean obviously had the same idea as you and wanted to use all 1uF Poly on the Recall.
There's a 20k internal resistance on the 571, so you might lose a hair of base with 1u.
Thanks Scruffie!