The DT-1704 VFD as seen the 1976 Radio Shack Catalog. The “A” version has no substrate, making the VFD fully clear for added effect. When you have a small stock of vacuum fluorescent displays (VFDs) ...
Small in size, low-resolution, blocky segments, and a limited color palette — all characteristics of the typical vacuum fluorescent display, any of which would seem to disqualify them as the display ...
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