![File:Vintage Bohn Omnitrex Electronic Pocket Calculator, Made In Taiwan, VFD, Circa 1973 (15992278795).jpg - Wikimedia Commons File:Vintage Bohn Omnitrex Electronic Pocket Calculator, Made In Taiwan, VFD, Circa 1973 (15992278795).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/d/db/Vintage_Bohn_Omnitrex_Electronic_Pocket_Calculator%2C_Made_In_Taiwan%2C_VFD%2C_Circa_1973_%2815992278795%29.jpg)
File:Vintage Bohn Omnitrex Electronic Pocket Calculator, Made In Taiwan, VFD, Circa 1973 (15992278795).jpg - Wikimedia Commons
![RARE Casio FX-39 Scientific Calculator Green VFD Display 1970s Vintage Tested! | Scientific calculator, Calculator, Old technology RARE Casio FX-39 Scientific Calculator Green VFD Display 1970s Vintage Tested! | Scientific calculator, Calculator, Old technology](https://i.pinimg.com/originals/31/0a/48/310a48b3978629523ff0c417a538dc7c.jpg)
RARE Casio FX-39 Scientific Calculator Green VFD Display 1970s Vintage Tested! | Scientific calculator, Calculator, Old technology
![Found & fixed up a rare working Sharp's first pocket scientific calculator PC-1801 (1973) with red LED pictured next to a PC-1802 with VFD (1975) and financial EL-8200 with VFD (1975) : r/calculators Found & fixed up a rare working Sharp's first pocket scientific calculator PC-1801 (1973) with red LED pictured next to a PC-1802 with VFD (1975) and financial EL-8200 with VFD (1975) : r/calculators](https://preview.redd.it/found-fixed-up-a-rare-working-sharps-first-pocket-v0-o55atirtz8bb1.jpg?width=640&crop=smart&auto=webp&s=6778f371672ca731583e38b533ea927a5508d17b)
Found & fixed up a rare working Sharp's first pocket scientific calculator PC-1801 (1973) with red LED pictured next to a PC-1802 with VFD (1975) and financial EL-8200 with VFD (1975) : r/calculators
![Vintage green VFD calculator fonts: Sharp QT-8D (1969), PC-1001 (1973), EL-811 (1972), PC-1200 (1977) : r/calculators Vintage green VFD calculator fonts: Sharp QT-8D (1969), PC-1001 (1973), EL-811 (1972), PC-1200 (1977) : r/calculators](https://i.redd.it/vjwpy2lt0qpa1.jpg)
Vintage green VFD calculator fonts: Sharp QT-8D (1969), PC-1001 (1973), EL-811 (1972), PC-1200 (1977) : r/calculators
![File:Vintage Unisonic Electronic Pocket Calculator, Model 890C, VFD (Vacuum Fluorescent) Display, Sealed Battery Pack, Made In Japan, Circa 1975 (16390017822).jpg - Wikimedia Commons File:Vintage Unisonic Electronic Pocket Calculator, Model 890C, VFD (Vacuum Fluorescent) Display, Sealed Battery Pack, Made In Japan, Circa 1975 (16390017822).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/thumb/6/66/Vintage_Unisonic_Electronic_Pocket_Calculator%2C_Model_890C%2C_VFD_%28Vacuum_Fluorescent%29_Display%2C_Sealed_Battery_Pack%2C_Made_In_Japan%2C_Circa_1975_%2816390017822%29.jpg/1923px-Vintage_Unisonic_Electronic_Pocket_Calculator%2C_Model_890C%2C_VFD_%28Vacuum_Fluorescent%29_Display%2C_Sealed_Battery_Pack%2C_Made_In_Japan%2C_Circa_1975_%2816390017822%29.jpg)