1966 Tasco 12TE-5 266 Power Telescope w/ Tripod & Original Case

Vintage 1966 Tasco Model 12TE-5 266 Power Refracting Telescope, complete with its original wooden storage case, fitted foam insert, adjustable tripod, and accessories. Maker-marked and produced during the height of the 1960s space-age boom, this model was one of Tasco’s premium 60 mm instruments, designed for amateur astronomers seeking quality optics in a portable format. The set includes the period booklet “A Key to Worlds Beyond,” adding educational and nostalgic appeal.

The Tasco 12TE-5 features a 60 mm objective lens and 800 mm focal length (f/13.3), delivering crisp lunar and planetary views. It typically includes two eyepieces (12.5 mm and 6 mm), a 2× Barlow lens, finderscope (5×24 or 6×30), and a metal alt-azimuth tripod. Marketed as “266 Power,” the telescope’s realistic magnifications range from ~50× to ~150×, providing fine detail on bright celestial objects. A handsome, dovetail-jointed wooden case with metal corner caps and a plastic handle completes the presentation.

Specifications
Model: Tasco 12TE-5 “266 Power” Refractor Telescope
Year: 1966
Objective Diameter: 60 mm
Focal Length: 800 mm
Focal Ratio: f/13.3
Eyepieces: 12.5 mm and 6 mm (approx. 64× and 133× magnification)
Barlow Lens: 2× (extends magnification to ~234× nominal)
Finderscope: 5×24 or 6×30 (varies by set)
Mount: Alt-azimuth, manual controls
Marketing Magnification: 266× (nominal, not practical)
Manufacturer Marking: Tasco Reg. No. 512266 
Country of Origin: Japan 

Condition
Good condition overall. Complete with all major components present. Telescope shows light scuffs and evidence of gentle prior use. Optics appear clean; mechanical adjustments move smoothly. Wooden case displays scuffs and shelf wear consistent with age but remains solid, with working latches and handle.

Dimensions
Overall case: 8.75" H × 34" W × 9.75" D