Ballen's
Welch Allyn Ophthalmoscopes Cleaning the Optics

Wall-mount transformer #76710 (excellent used condition)- extra clean-light gray plastic! Welch allyn 767 transformer- standard ophthalmoscope (11710) is new in box the standard ophthalmoscope (11710) in this system is a sealed, covered-lens system that cannot be easily disassembled for cleaning.