atm_free : Amateur Telescope Making

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40 New Messages - 3 New Photos - New Questions

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This Group is for the FREE exchange of ideas related to Amateur Telescope Making (ATM).

Have fun, be kind, play fair, learn, teach, participate.

PHOTO... Here's a contributed photo of a homemade 22 inch tube (before painting) for an Astrograph built by Dave Tandy. The full size photo can be viewed by ATM_FREE members in the "Photos" section. Check out the ATM_FREE Group's discussion for more info on this project and other things we are doing.

Ken Hunter

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Re: Alternative Glass Substrate from Canada Thanks Art. Just awaiting info from the supplier list by Dennis. If you know of any other suplier, please let me know. Phill On Feb 9, 2010, Posted - Tue Feb 9, 2010 10:24 pm	calvin65@... bigdob20 Offline Send Email
Re: Alternative Glass Substrate from Canada Phil if I have my chronology correct, the current manufacturer of BAC should not be painted with the negative reputation that the early substrates generated. Posted - Tue Feb 9, 2010 8:01 pm	__A_YAHOO_USER__ artbianconi... Offline Send Email
Re: Alternative Glass Substrate from Canada Thanks Dennis. Sent an e-mail. Hope he is making blanks. Will need further info from him. Any good or bad feedback about this supplyier would be Posted - Tue Feb 9, 2010 2:22 am	calvin65@... bigdob20 Offline Send Email
Re: SoundStepper Certainly it works! But You will need to modify the amplifier/current controller circuit. The output voltage swing of PCM2707 (for example) is 0.5Vp-p, while Posted - Mon Feb 8, 2010 10:36 pm	Maciel Bassani Sparre... macielbs Offline Send Email
Re: from another group I am not moving; everything else is! ... -- NOT sent from that galldurned iPhone with its crippled bluetooth and authoritarian restrictions. Posted - Mon Feb 8, 2010 8:46 pm	Richard Schwartz richard1941@... Send Email
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