I don't have photos, but the host is put together in sections. Once you remove the focus knob on the front by unscrewing it, you can see the TO-18 case diode with the multi-element lens on the knob. Unscrew the middle section, which has the knurling on it just above the button, and the large driver is exposed.
Ditto, and if you can don't be afraid to post pic's of the dissasembly of this Thor,
whether it worked out or it broke.
Super knowledged members or not, we all like to see and you just might be helping another with the same issue..Good luck