Hi Garey, Yes, a VERY good point, indeed! Thanks for adding that "PS"...
It never ceases to amaze me, whenever I'm looking for possible "subs" in my books like that here, at just how many tubes seem to be so very much alike---yet they have different numbers. You have to really examine their individual specs closely, & then act accordingly, dependent upon your specific application of the substitute tube... Still, having said that, it CAN be well worth the effort---financially, as well as otherwise---& it is NOT an exercise in futility... ~73~ de Eddy VE3CUI - VE3XZ ************************************************************************************************************************* On 2012-01-01, at 9:55 AM, Garey Barrell wrote: > As long as you also remember your 'other' friend, the RCA Tube Manual..!! Two > common pitfalls are different filament currents (bad for series strings) and > interelement capacitances.
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