Quick view Astro-Physics GTOCP4 Control Box for all GTO Mounts, except Mach2GTO. Order new 2-Pin power cable (GTOCP4) All GTO mounts(except the Mach2GTO and 1150GTO) produced since 1998 can be easily upgraded!!! The GT MSRP: Was: Now: $1,295.00 Add to Cart
Quick view Astro-Physics GTO Keypad with Keypad Protector - for GTOCP1, GTOCP2 and GTOCP3 Control Boxes. Serial # of mount required for purchase. (KEYVFK) This Keypad should only be purchased for use with the GTOCP1, GTOCP2 and GTOCP3 control boxes. This MSRP: Was: Now: $980.00
Quick view Astro-Physics GTO Keypad with Keypad Protector for GTOCP4, GTOCP5 and GTOCP6 Control Boxes. Serial # of mount required for purchase. (KEYVFK2) This Keypad should only be purchased for use with the GTOCP4, GTOCP5 and GTOCP6 control boxes with v MSRP: Was: Now: $980.00 Add to Cart
Quick view Astro-Physics Absolute Encoder Kit for 1100GTO - Standard Temperature (11AE-4-KIT) The photo above shows the 1100GTO with either version of the absolute encoders installed - standard MSRP: Was: Now: $6,124.00 Add to Cart
Quick view Astro-Physics EPROM Microcontroller Chip w/ V2 Version Firmware for GTOCP3 Control Box, Extraction Tool (CHIPKITV2) If you already own the GTOCP3 control box, you may wish to consider upgrading the ROM chip to take a MSRP: Was: Now: $92.00
Quick view Astro-Physics 1100GTO RA & Dec Auto-Adjust Motor/Gearbox Upgrade (S1100MGW-UP) May 7, 2025. We have a limited number of upgrades available for mounts shipped before January MSRP: Was: Now: $1,975.00
Quick view Astro-Physics Flat Surface Adapter with Flat Pier Plate - for 1100 and 900 Mounts to use 10" ATS Piers (119FSA-10ATS), inside surface not anodized Ever find yourself wishing that you had a bigger mount? Short of a magical spell, you can maximize t MSRP: Was: Now: $411.00 Add to Cart
Quick view Astro-Physics 1100GTO Counterweight Shaft Adapter with Aluminum Bronze Insert (S1100CSA) If your 1100GTO mount is is frequently used as a portable mount, you may wish to consider upgrading MSRP: Was: Now: $109.00 Add to Cart
Quick view Astro-Physics 13.7" x 1.875" Diameter Counterweight Shaft, Stainless Steel (M2043) This shaft has a usable length of 13.7" and is designed to be used with our 5 lb. (5SCWT), 10 l MSRP: Was: Now: $119.00 Add to Cart
Quick view Astro-Physics Counterweight Shaft Safety Stop, One-Piece, Washerless (M12676) MSRP: Was: Now: $35.00 Add to Cart
Quick view Astro-Physics 9.25" x 1.875" Diameter Counterweight Shaft Extension, Stainless Steel (M12675) The 8.5" Counterweight Shaft Extension completes the current 1.875" diameter counterweight shaft ens MSRP: Was: Now: $87.00 Add to Cart
Quick view Astro-Physics Y-Cable w/42" Declination Length for 1100 Quick Release Servo Box (S1100GYCR42) This is a custom cable for the 1100GTO (without Absolute Encoders) that is used when setting up the MSRP: Was: Now: $231.00 Add to Cart
Quick view Astro-Physics Flat Surface Adapter with Flat Pier Plate - 1150, 1100 and all 900 Mounts - for 8" ATS and other non-Astro-Physics piers (119FSA-FP), inside surface not anodized If you are ordering a 8" ATS pier for your 1150, 1100 or 900 mounts, you will need to order this ada MSRP: Was: Now: $303.00 Add to Cart
Quick view Astro-Physics Flat Pier Plate for 1150, 1100 and all 900 Mounts - for 8" ATS and other non-Astro-Physics Piers (119FP) This Flat Pier Plate (119FP) has been machined to the specifications of the Advanced Telescope Syste MSRP: Was: Now: $166.00 Add to Cart
Quick view Astro-Physics 16.4" x 1.875" Diameter Counterweight Shaft , Stainless Steel- 1100, Mach2, Mach1, 1200, 900 (see exception) (M9404-B) This is the current shaft for 1150, 1100 and 900 mounts. It can also be used as an optional "heavywe MSRP: Was: Now: $131.00 Add to Cart
Quick view Astro-Physics 22" x 1.875" Diameter Stainless Steel Counterweight Shaft - 1600, 1150, 1100, 1200 (all models), 900 (see exception). (M12601-E) Like its predecessors, this 1.875" diameter counterweight shaft is precision machined from solid 303 MSRP: Was: Now: $149.00 Add to Cart
Quick view Astro-Physics Flat Surface Adapter -attach 1150 or 1100 Mount or 900 Pier Adapter and Wedge to a flat surface (119FSA), inside surface not anodized The 8” Flat Surface Adapter (119FSA) allows the 1100GTO Mount and all versions of the 900 Moun MSRP: Was: Now: $149.00 Add to Cart
Quick view Astro-Physics Polar Scope Cover - 900 Mounts Shipped Before October 2005, all 400 and most 1200 Mounts (except original black metric version) (Q12700) These covers allow you to keep your Polar Alignment Scope protected while remaining threaded in your MSRP: Was: Now: $65.00 Add to Cart
Quick view Astro-Physics 1100GTO Dec Top Plate (S1100DTP-A) Customers have found the Dec Top Plate to be very convenient when wanting to quickly change out scop MSRP: Was: Now: $217.00 Add to Cart
Quick view Astro-Physics Extension to allow 1150 or 1100 Control Box Adapter (single or double) to be used with 10" diameter pier (Q6281KIT) This extension adapter was designed to allow the control box (single or double adapter) to be used w MSRP: Was: Now: $57.00 Add to Cart
Quick view Astro-Physics 1100GTO Single Control Box Adapter (M11010KIT) If you own an 1100GTO-AE or 1100GTO-AEL with a GTOCP3 and GTOAE control boxes, your mount has a doub MSRP: Was: Now: $62.00 Add to Cart
Quick view Astro-Physics Power Cable Set with 2-Pin and Powerpole Connectors for GTOCP4, GTOCP5 and GTOCP6 (CABPP4SET) The power cable for the GTOCP4, GTOCP5 (Mach2GTO only) and GTOCP6 (1150 only) can purchased as MSRP: Was: Now: $137.00 Add to Cart
