Replacing the tube in a TRS-80 Model 4

Why did you replace the CRT? I notice that your final (?) photo has a caption of the form 'enjoying the green screen', but I thought all M4s had a green phosphor CRT. Well, M3s that have been upgraded don't I guess. As regards removing the final anode connector ('anode cap'. 'EHT flower' :-), etc) most of the time the CRT is automatically discahrged either via a bleeder resistor or via the beam current of the CRT. The only time I've had a reasonable residual voltage on the final anode was on a CRT where the cathode (yes, I mean cathode and not heater) had become disconnected from the base pin, so no beam current. The residual charge in any case is unlikely to be dangerous iteslf, but it may make you jump and hit the CRT or similar. I use my EHT voltmeter (a Heathkit one cosnisting of an 800M resistor and 50uA meter in series). It passes enough current to discharge the CRT and of course you can see when it's discharged. But not everybody has such an instrument (although it's a very useful thing to own if you work a lot on monitors). -tony