| Country of Origin | United States |
|---|---|
| Type | Solar Wafers |
| Year | 1970 |
| Theme | Astronauts & Space Travel |
Check the listing for details. 1970 Vintage Heliotek PT3 Miniature Solar Cell 20 X 20 mm 1/2 Volt Lot of 100. Condition: New, Made in United States. Listed at 345.00 USD. 1970 Vintage Heliotek PT3 Miniature Solar Cell 20 X 20 mm 1/2 Volt Lot of 100. Collectible historical Aerospace Solar Wafers. Each one measures 20 X 20 MM and each one outputs about 500 Milliamps DC in full sun. Auction is for the original Heliotek container with 100 cells as shown in the pictures.