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Re: Gauges

Posted By: Romarrk
Date: Saturday, 30 March 2013, at 1:21 p.m.

In Response To: Re: Gauges (Romarrk)


Mark, may be you are right because Hastings tubes are more tricky to run than old-school one I use.

They can use only pure AC for drive because thermocouples are mixed with heater. That means more complex circuit that plain LM317 I use. Still not rocket science though.


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