[Hallicrafters] Power washing a dusty, grimy rig??

[Michael Peron]

I purchased an SR-400/PS-500 at a local estate sale but it is in need of restoration. The undersides are quite pristine but both top chassis are very dusty and full of grime (luckily no smoke smell). I first plan to dust it with a dry brush followed by compressed air as mentioned on the Hali site. I've also read about the use of Windex, 409, soap and brasso but this could be quite labor instensive. I didn't find anything on using a power washer (on low to medium pressure). I've cringe at using water on vintage electronics but recall folks drying these boat anchors in an oven. Does anyone have any suggestions if this approach is advised? My electric power washer has a small tank where I can mix in "cleaner" to the water flow. Any ideas on what type of cleaner to use? What about compressed air drying instead of oven baking? A good friend of mine and fellow member suggested covering the IF cans before spraying with water (sounds like good advice). Thanks in advance. Mike WB6UTW