213 replies to this topic

[SandyHouTex]

Here's an interesting 12 inch Mak-Cass for $5000.  The widow is selling it, looks well made.  It also looks like a Byer drive maybe?

 

What throws me is she says it's an f/5.  Never heard of a Mak-Cass at f/5.  Plus the secondary looks way to small to be an f/5:

 

https://astromart.co...grain-telescope

[cavedweller]

Here's an interesting 12 inch Mak-Cass for $5000.  The widow is selling it, looks well made.  It also looks like a Byer drive maybe?

 

What throws me is she says it's an f/5.  Never heard of a Mak-Cass at f/5.  Plus the secondary looks way to small to be an f/5:

 

https://astromart.co...grain-telescope

 

Looks more like a Mathis drive.

[CHASLX200]

Here's an interesting 12 inch Mak-Cass for $5000.  The widow is selling it, looks well made.  It also looks like a Byer drive maybe?

 

What throws me is she says it's an f/5.  Never heard of a Mak-Cass at f/5.  Plus the secondary looks way to small to be an f/5:

 

https://astromart.co...grain-telescope

Collimation will be fun. Never get a Mak again after the 8" i had.

[scout]

Here's an interesting 12 inch Mak-Cass for $5000.  The widow is selling it, looks well made.  It also looks like a Byer drive maybe?

 

What throws me is she says it's an f/5.  Never heard of a Mak-Cass at f/5.  Plus the secondary looks way to small to be an f/5:

 

https://astromart.co...grain-telescope

Well she does say only 17 of this type were ever made, which could explain why you've never heard of it.

[John Rogers]

An approximately 11" Dobsonian for someone in the Sacramento, CA area for FREE!

 

https://sacramento.c...7783342091.html

[jragsdale]

Orange Sandcast C11 - $1200 in Chico, CA

https://chico.craigs...7783344276.html

[CHASLX200]

An approximately 11" Dobsonian for someone in the Sacramento, CA area for FREE!

 

https://sacramento.c...7783342091.html

Maybe has a Zambuto.

[Russell Smith]

Maybe has a Zambuto.

If it was close to me, I would already have it.

Details in the found thread.

[starman876]

An approximately 11" Dobsonian for someone in the Sacramento, CA area for FREE!

 

https://sacramento.c...7783342091.html

that is a starsplitter

[deSitter]

Here's an interesting 12 inch Mak-Cass for $5000.  The widow is selling it, looks well made.  It also looks like a Byer drive maybe?

 

What throws me is she says it's an f/5.  Never heard of a Mak-Cass at f/5.  Plus the secondary looks way to small to be an f/5:

 

https://astromart.co...grain-telescope

I think an f/5 Mak is basically impossible. Must be f/15.

 

-drl

[m0bius]

An approximately 11" Dobsonian for someone in the Sacramento, CA area for FREE!

 

https://sacramento.c...7783342091.html

 

   Sent an inquiry... 

Finger and toes crossed!

[deSitter]

Well she does say only 17 of this type were ever made, which could explain why you've never heard of it.

Big RuMaks are hard to make. People probably just don't want to work that hard for marginal profit. It must be incredibly tedious figuring the secondary.

 

-drl

[Russell Smith]

   Sent an inquiry... 

Finger and toes crossed!

Every now and then I am blessed with an amazing find. I do hope you rescue this one.

[deSitter]

Collimation will be fun. Never get a Mak again after the 8" i had.

The previous owner screwed it up. Maks are not meant to be collimated every other outing. Good ones are made to hold collimation forever outside being dropped. The tinkering spirit does more damage than good.

 

-drl