I found a 6BQ5 amp tube and know nothing about them other than the pin id's.
. According to http://www.ampage.org/td/vtd6bq5.htmlPins 4 and 5 are for the heaterHeater Voltage (AC/DC) 6.3 voltsHeater Current 0.76 ampereHeater Warm-up Time (Average) 11 seconds
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What the heck i love a good explosion, i believe i'll hook up the heaters and see what happens. It would be cool looking to have a stand alone glowing tube. I remember listening to those old radio ghost story / mystery programs in the 70's when i was a kid. those glowing tubes kinda added to the experience.lol Thanks for the info.