Can I use a Bachmann model number 6607 transformer for my Dewitt Clinton set?
I can't tell you for sure since that model number is missing 1 number or is not the right number, but you can use any HO/N DC power source for your locomotive.
The HO model number is 00641
ntex-
Don't look for great performance from that DeWitt Clinton. It's just too light.
-- D