Bob's Knobs for Meade 8” f/10 with 4-Screw Secondary

Article number: M8-4
Availability: In stock
Delivery time: In Stock

Knobs for Meade 8” f/10 with 4-Screw Secondary

Part: M8-4
Fits: Meade 8” (20 cm) f/10 SCT versions with four screws on the secondary housing (LX90, LX200, others).

Knobs: Black plastic, 13 mm (1/2”) diameter
Threads: Black anodized aluminum alloy


  1. The factory dust cover should fit normally with Bob's Knobs installed. If your dust cover contacts the knobs, we provide a set of spacers that attach to the inside of the dust cover to move it slightly away from the secondary assembly. Contact us for a free set. You can also press the center of the cover from the inside to contour it for additional clearance.
  2. Pre-2005 Meade 8” telescopes have three screws on the secondary housing and no fourth screw on the side. The surface of the 3-screw secondary is textured, not smooth like the surface of the 4-screw secondary pictured. The 3-screw secondary requires different knobs (Item A above) Do not use knobs for the 4-screw secondary on the 3-screw secondary. The screws on the 4-screw knobs are too long.
  3. An Allen wrench for removing the factory collimation screws is included with your order.
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