Thread: Injecting video in DuMont RA-102?
View Single Post
  #37  
Old 04-06-2017, 03:52 PM
Phil Nelson's Avatar
Phil Nelson Phil Nelson is offline
VideoKarma Member
  
Join Date: Jan 2006
Posts: 4,030
Yes, the earlier version (RA-102-B1) doesn't have the focus control in front. The later version (RA-102-B2) has an additional 30-ohm/10W resistor on that control. Riders lists three other small changes on page 1-43.

Phil Nelson
Reply With Quote