Negotiating your way through all the Shindengen R/Rs is a real minefield, Spuggy, especially as Shindengen themselves don't appear to publish a list of all their models and types, (at least I've never managed to find one).
It also doesn't help that, despite producing products with fundamentally different circuitry, Shindengen uses the same labelling system to identify them all - SH775, SH821, SH847 - you can't tell from the model no. which is shunt and which, if any, is series. It would be much simpler if the series type had its own dedicated suffix (they do identify the MOSFET type with an 'F' after all). But that would make life too easy, wouldn't it?!
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