Western Auto

Model: Electronic Wizard ( TX4993 )
Battery: 9 volt
Adapter: AC9180
Year: 1975
Chip:  TMS0803, SN27882          
Info: Western Auto Supply Company began in 1973 distributing portable electronic calculators manufactured by Texas Instruments under their own branding with a prominent "electronic Wizard" logo. The M4995 "electronic Wizard" is a close relative of the Montgomery Ward P8PMontgomery Ward P8P a.k.a. TXI-8645A with the unusual [-=] and [+=] keys but misses the sliding switch to select between floating [F] or [2] or [4] decimal places for the answer. Texas Instruments ceased manufacturing of the Montgomery Ward P8F, P8M, P8P and the related Western Auto M4995 in Summer 1974 and both companies introduced calculators based on the Exactra 23 named P100 and M4993, respectively.