[RadioSvit]

Ron, I suspect that the Ministry of Radio Industry of the USSR purchased a batch of chassis from the RCA 9K console and the same batch of housings from the RCA 9T desktop receiver and replaced only the power transformers. Although the cases may have been manufactured in the USSR. Because otherwise it is very difficult to explain why in about two and a half years only about 1000 pieces of these receivers were made. In the Soviet Union, several developers did similar operations with the purchase of chassis lots from RCA-140 and RCA D-11, and here only replaced the inscriptions on the chassis signs and often even bought complete radios and replaced only the names.
These are just my guesses because I have no confirmation in the documents, but ...
PS. Photo 9H4 is not mine, I do not have this radio - we have it is extremely rare and expensive. Now no more than 10 pieces have survived and they cost ridiculous money here. Although I would gladly buy an American 9T