Hi everyone, hoping to get some help here. Recently acquired this Haze 40, had a bad power tube so I ordered a matched pair of EH EL34s to pop in. Go to set the bias and I get no voltage between pins 1 & 2 of con3, and about 40mv between 2 & 3. No amount of fiddling with the bias pots changes the reading between 1 & 2. Any ideas where to start? Nothing obviously burnt on the board, plate voltage measures about 460V. If I measure resistance between the pins I get 1.3 ohms between pins 1 & 2 and 2 & 3, and double that between pins 1 & 3. Thanks in advance for any help.