19 set Bakelite watch holder advice

[derk derin]

I’m looking for some information in regards to installing the Bakelite watch holder on a Mk III 19 set. It’s on the power supply. In its normal position beside the transmitter/receiver the watch sits upright in a normal position. But in a Universal carrier installation the power supply is mounted sideways on top of the transmitter/receiver so the watch sits 90 degrees out. I tried to reposition the watch holder 90 degrees so when the power supply sits on its side the watch is upright but the holes in the holder and the face of the power supply don’t line up that way. It’s sitting 20-30 degrees out.
Can anybody explain to me the proper mounting application for the watch in this situation. Does it just sit in the watch holder 90 degrees out or were there new holes drilled in the face of the power supply?
Derk