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Thank you for your reply, and I do understand; and you have certainly supplied all the info necessary to build the unit. It's just that as an engineer, my brain needs a schematic to fully understand the operation. Many thanks for the 'able.--TerryDr. T. Rowe
Where's the schematic for us to understand? I did look for one . . . .--Terry
(or her). Very, very clever design -- elegant simplicity. Gongrats!--Terry
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