I just replaced a capacitor (12 Pf 500v 5%) that connects from the neutralizing veritable capacitor to the final tune capacitor. This capacitor had a broken lead where it connected to the capacitor. I hoped this would fix a problem I had with tuning (plate current would not dip it just in creased as power peaked 325 ma and no grid current on the meter). When I turned it on in receiving mode there is a hum in the audio and the driver tube is glowing violet, HV is about 800, no plat current or grid. I get a loud static pop from the speaker the HV drops to 775 and there is about 50 ma plate. Then there is a click and the voltage goes back to 800 and no plate. I have not set it to tune receive only.
Hope this makes sense I’m new at tube stuff and this gets out of my comfort zone.