Quote: re: Mel Bartels.. the guy has an asteroid named after him!
I lost count of my scopes. Now I just want mobility. I came, I saw, I bought some interesting accessories, and put names to faces: NEAF 2012, ASAE 2012, SWAP 2013, ASAE 2013.
I noticed that you'd started a topic a year or so ago asking if anyone had ever successfully swapped an Orion TrueTrack D/Axis controller (part no 7832) for EQ5 for their old Celestron CG5 D/Axis controller (part no 93523). I saw no responses to your question, but in this topic you recommended the Skywatcher EQ5 controller or buying a remaining Celestron drive kit from Scope City. Does that mean the Orion TrueTrack drive *doesn't* interchange, or did you just not go that route?
Quote:I think ScopeCity was keen to off-load these old units that have been sitting around in boxes collecting dust (and costing them money too).
Quote:Quote:I think ScopeCity was keen to off-load these old units that have been sitting around in boxes collecting dust (and costing them money too). I must have sounded either gullible or desperate, because they asked me for $199 for one. That's $53 more than Orion sells their current model for.For $45 I've got two single-axis controllers and the parts to modify them for my mount's 144-tooth gears. Since I never use the Dec motor anyway, this is a better solution by far.Jerry
"A republic, if you can keep it." Benjamin Franklin
Quote:you might also want to add RA guiding to that :-)...unless of course your needs are purely visual.
Quote:I ordered a spare controller directly from Celestron a few years ago anticipating just this scenario. I think the price was $20. Perhaps they still have them?
Quote:Jerry, the big chip is not a ROM. It's an 8051 clone. I assume they all are pin-compatible with each other (since they are all Intel 8051 clones). Putting the old CPU in the new controller should be fairly risk-free, these old CPU's are quite robust.In your old controller it's likely that the power drivers are busted, not the CPU.