EH Holy Grail Rehouse

First time I've ever played through one of these.  Seems like a good unit for thick wet reverb sounds, though I probably wouldn't choose it for a subtle reverb effect.  

Very sensitive to power supplies - with a standard pedalboard switching supply it's very noisy.  Much quieter with the bench DC supply.

Simple rehouse - made the footswitch true-bypass.  Added a common 2.1mm DC "Boss" jack, but also kept the 1/8" jack (switched) for the original EH wall wart.

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