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#13
09-27-2009, 07:48 PM
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A little followup.
The attached photo is of a gun from a 12LP4. The first cylinder on the left is G1. The heater and cathode are located inside of G1 and are not visible. Next is G2. The third cylinder is G3 or the accelerating grid or anode. Whatever you prefer to call it. You'll notice that it has no leads going to it. On the right hand end it has spring contacts that press against the aquadag to make contact with the HV. At the end of G3 is a small hole where the electrons exit. It's at this point that they attain their maximum energy/velocity. John 
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