Realistic 31-1955
A catalog number with no product behind it, and a paper trail that leads somewhere else entirely.
Overview
This entry is a dead end, and it gets labeled as one instead of being padded with guesses. Nothing verifiable has surfaced: no specification, no photograph, no price, no production year, and no confirmation of what kind of product the number was ever attached to. It could have named a receiver, a tape machine, an accessory, or a rebadged OEM component. Nobody knows which.
The research trail shows how catalog numbers can mislead automated indexing. The PDF excerpts attributed to this model are pages from 1955 issues of Broadcasting - station directories, network-billing summaries, agency personnel notes, an AT&T filing on color-television transmission rates. Not one of them names the Realistic 31-1955, and none of them describe consumer audio equipment. The match appears to rest on the digits "1955" coinciding with the publication year. That is the classic false positive semantic retrieval produces when a model number reads like a date.
A second excerpt, from Audio (November 1964, p.24), is a genuine period piece - Harry F. Olson's technical discussion of the Dynagroove recording system, covering RCA's approach to disc cutting and playback compensation. It is a real magazine article from an approved publication, but it has nothing to do with RadioShack or the 31-1955. Attaching it to this page would be a fabrication dressed up as a citation, and the archive won't do that.
So this page stays thin. Collectors who turn up a 31-1955 on a chassis plate, a rear-panel sticker, an original carton, or a service tag are encouraged to send photographs and any accompanying documentation through the feedback link below. A single clear photo or a page from a RadioShack catalog would resolve in minutes what the current source material cannot.
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