So I'm finally getting around to rebuilding my longstanding 1970 Superlead project. First thing...the only evidence I have that it's a 1970 is that it was written "1970 superlead" on the chassis in a permanent marker when I got it. The original back panel was long gone, as was most of the original parts of the amp. But my visit to the amparchives website made me question if it's a 1970 or if it might instead be a 1969. It has: Brown turret board, but not a grid board. And a voltage selector board that is separate, and mounted close to the fuse holders. And its transformer type is stand-up, not laydown. I'm seeing these as being more likely to be 1969 features and less likely to be 1970 features. If you agree or disagree, or have information regarding this, I'd love to hear it. The original turret board has literally ONE original component on it, a resistor. ALL the rest are replaced parts. The original turret board is kind of hacked up. Some holes have been drilled out oversized, some holes appear to have been added, and the sliding element bias resistor was replaced by a small pot that was mounted through a hole drilled through the turret board. Given its condition I'd be willing to just replace the original turret board with an original spec replacement. Do you know of a source for brown turret boards or at least correct board stock?