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Bob's Knobs

14 products

Showing 1 - 14 of 14 products

Showing 1 - 14 of 14 products
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Bob's Knobs Accessory Knobs for C8 f/10 Pre-1980 Orange-Tube Secondary - C8org Bob's Knobs Celestron 8" SCTBob's Knobs Accessory Knobs for C8 f/10 Post-1980 Secondary with Standard Collimation Screw Threads - C8std Bob's Knobs Celestron 8" SCT
Bob's Knobs Bob's Knobs Celestron 8" SCT
Sale price$33 CAD
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Bob's Knobs Accessory C9.25 f/10 Secondary with Standard Collimation Screw Threads - C9.25std Bob's Knobs Celestron 9.25" SCTBob's Knobs Accessory C9.25 f/10 Secondary (non-Fastar) with Metric Collimation Screw Threads - C9.25metBO Bob's Knobs Celestron 9.25" SCT
Bob's Knobs Bob's Knobs Celestron 9.25" SCT
Sale price$33 CAD
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Bob's Knobs Accessory Bob's Knobs Celestron 6" SCT
Bob's Knobs Bob's Knobs Celestron 6" SCT
Sale price$33 CAD
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Bob's Knobs Accessory Knobs for Meade 10" f/10 with 3-Screw Secondary - M10-3 Bob's Knobs Meade 10" SCTBob's Knobs Accessory Knobs for Meade 10" f/8 and f/10 with 6-Screw Secondary - Bob's Knobs Meade 10" SCT
Bob's Knobs Bob's Knobs Meade 10" SCT
Sale price$33 CAD
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Bob's Knobs Accessory Knobs for Meade 8" f/10 with 3-Screw Secondary - Bob's Knobs Meade 8" SCTBob's Knobs Accessory Knobs for Meade 8" f/10 with 4-Screw Secondary - M8-4 Bob's Knobs Meade 8" SCT
Bob's Knobs Bob's Knobs Meade 8" SCT
Sale price$33 CAD
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Bob's Knobs Accessory Knobs for C14 f/11 Secondary with Factory Headless Set-Style Collimation Screws - C14set Bob's Knobs Celestron 14" SCTBob's Knobs Accessory Knobs for C14 f/11 Secondary with Factory Headless Set-Style Collimation Screws - C14stdphi Bob's Knobs Celestron 14" SCT
Bob's Knobs Bob's Knobs Celestron 14" SCT
Sale price$33 CAD
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Bob's Knobs Accessory Bob's Knobs Celestron Newtonian/Dobsonian Knobs
Bob's Knobs Bob's Knobs Celestron Newtonian/Dobsonian Knobs
Sale price$33 CAD
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Bob's Knobs Accessory Bob's Knobs for Telrad Reflex Sight
Bob's Knobs Accessory Knobs for Meade 12" f/10 with 3-Screw or 4-Screw Secondary - Bob's Knobs Meade 12" SCTBob's Knobs Accessory Knobs for Meade 12" f/8 with 6-Screw Secondary - M12-6f8 Bob's Knobs Meade 12" SCT
Bob's Knobs Bob's Knobs Meade 12" SCT
Sale price$33 CAD
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