> I have a copy of
>Neale E. Howard's "Standard Handbook ForTelescope Making" and a paper back
>version of Texereau's "How to Make a Telescope". one talks a bout slit type
>and pinpoint lights. Also, anyone know what size diagonal was standard on
>ths scope, my guess was 1.83 or 2.1 or there abouts
They say a slit type works just as well as the pinpoint, and is considerable brighter, making the figure easier to discern. The standard diagonal for a six inch would be in the 1.25 to 1.5 range, unless you were hell bent on buying a two inch eyepiece. Remember, the smaller the diagonal, the sharper the image. The traditional maximum has been: diagonal minor axis=primary diameter/4.
Good luck!
Mb