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One thing to keep in mind is the in-coming line voltage. Since summer is coming (101° F in Tucson tomorrow) setting the H+ voltage on a low voltage afternoon will result in too high heater voltages late at night. I recommend keeping a log of your house voltage to see how close it stays to 120V and adjust accordingly. Heater voltages over 6.3 is not a good thing.
Dang it Abe! I am in the middle of a high efficiency speaker building project and now you have me wanting to waste an afternoon playing with my Cornet. I am still waiting for your report on the Piccolo with tweaks before I order up. Thanks for keeping this fun! Peace. Robert
A week after getting my heater voltage up from 5.97V to 6.2V I'm sure it made a significant improvent.
The chassis itself reads around 11Volts.
Quote from: Braden on 19 Sep 2007, 12:08 amThe chassis itself reads around 11Volts.When you touch both red and black leads to the chassis you get 11 volts DC?Maybe you just not getting a solid chassis ground for the black lead?