Interesting perusal of the PE50SP. I had no idea. I managed to pick a couple up some time ago for a bargain price and have had no real complaints with them.

I found an odd mic at a recent garage sale foray, an Electro-Voice 644 Sound Spot. It's from the early 60s think. The off/on switch needs to be rewired but I couldn't pass it up for a sawbuck.