On 4/28/2014 4:18 PM, NeonJohn wrote:
On 04/28/2014 04:47 PM, Matthew Smith wrote:Quoth Tidak Ada at 2014-04-29 06:13 ...I once opened a 50 cm B/W picture tube to make a lamp of it. I carefully packed the tube in thick blankets and then filed off the exhaust nipple. About one minute of hissing and the pressure was equilibrated. No danger at all!Aha! I wanted to get the electron gun and base of a CRT, to re-mount into a longer accelerator structure - was wondering how to break the vacuum safely.That works but it pretty much destroys the evacuation port for future use. I have the same intentions and have collected several B/W guns. My technique is to use a dental turbine (a dremel will do) and bore an about half mm hole through the neck downstream of where I plan on cutting it. That way I can re-open the tubulation in a controlled manner and reuse it. John
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