I have a Hiwatt T10H head tube head with the more or less classic 12AX7 preamp-tube and EL84 power-tube setup (home-made partially open back speaker cab with 12" Texas Heat). The tone is quite nice from 7th fret and up. Below there is some bottom missing and the sound is not as full bodied as i would have wanted. Looking around for a mod to help with this I see that replacing the coupling capacitator might be an option (thinking 0.47 or 0.1mF). I have modded some pedals before so I am not scared of going in there with the soldering iron to replace a component (yes, i am aware of the veryvery high voltages going around in there).
But, not being a electronics guy, my question is simply: how do I locate the correct cap? So it is between the preamp tube (pin 1?) and the power tube (pin 7?), but there is some other stuff in there aswell. I would assume it is the first thing that happens after the output from the preamp, but.. not sure. Any tips&tricks?
The PCB appears to be a two-layer thing, and without unscrewing tube sockets and power-transformer, I cannot see the back-side, so my plan was to await some advice before taking it to parts. All components are on the front side though.
But, not being a electronics guy, my question is simply: how do I locate the correct cap? So it is between the preamp tube (pin 1?) and the power tube (pin 7?), but there is some other stuff in there aswell. I would assume it is the first thing that happens after the output from the preamp, but.. not sure. Any tips&tricks?
The PCB appears to be a two-layer thing, and without unscrewing tube sockets and power-transformer, I cannot see the back-side, so my plan was to await some advice before taking it to parts. All components are on the front side though.
