Test review in April, 2010 issue of Sky at Night Magazine (UK):

Telescope Drive Master

Test review written by Dennis di Cicco in the October, 2011 issue of Sky and Telescope Magazine (US):

Telescope Drive Master

Explore Scientific (US) tester Jerry Hubbell's test report about TDM in August, 2011:

Telescope Drive Master

Telescope Drive Master Yahoo Group:

Telescope Drive Master