The original springs often used in standard mirror cells sometimes provide a counter pressure that is too low for a stable collimation. The TS coil springs are stronger and hold even heavier mirrors e.g. with 12″.
Our TS counter pressure springs fit:
- All GSO Newtonian and Dobsonian telescopes
- All ICS Dobsonians with red OTA
- Skywatcher Newtonian and Dobsonians
- Meade Newtonians and Dobsonians
- and many more
Remove the old spring and replace it by the TS spring. No further parts or tools are needed.
Hint for DIY constructors: the springs are made of 1.3 mm wire and have an uncompressed height of 12 mm.