17" Motorola B&W from '55 (not a good day)

[radiotvnut]

I attempted discharging a HV electrolytic capacitor across the open filament. First, I tried a 22uf charged up the 300V. With this capacitor, I could get a flash by tapping on the neck; but, it didn't hold. I moved up to a 68uf and got a bigger flash. It held until I applied 6.3 volts and it then popped like a flashbulb and that was it. So, unless I can find a 17HP4, this set will be parted out.