[Jeffhs]

From the small badge on the control panel, I'd say the set may have been made by Panasonic. I don't recall Sony ever using that type of badge on its TVs, although the control layout on your set, with the side-mounted tuners, does look like Sony; it's hard to tell.

BTW, I had no idea imported TVs like your little portable had cheap capacitors in them, or that the electrolytics in the power supply had to be replaced so frequently. I always thought that any electronic devices from the '60s-'70s, even imported ones, were much better than the cheap bottom-of-line stuff coming from China these days. However, I had two TVs in the '70s, bought new, that failed on me within three years. One was a Sharp 12" b&w portable that developed tuner problems; the other was a Kenco (house brand of the now long-defunct Kennedy and Cohen retail chain) 12" portable in which something shorted and smoked.

Needless to say, I junked both sets and replaced them with a 1968 Zenith 19" portable, followed one year later by a Zenith 12" solid-state b&w portable that lasted me 22 years and was still working, strong CRT and all, when I finally replaced it with an RCA CTC185 color set, which itself still works and will be used when my flat screen eventually quits (although that set is almost four years old, and is working every bit as well as it was the day I unpacked it).