I am about to finish a complete restoration of a Heathkit HW-101
transceiver. It came with a HP-23B power supply. The power supply has listed
low voltage settings for 275V and 350V. However, the manual calls for LV of
300 volts.

I don't want to blow up the radio; which LV setting, if at all, is correct
for the HW-101?

Thanks for your help and advice.

Jim