Stumbled on an article titled “Receiver Production Hits Alltime High” on page 34 of "Broadscasting" magazine from 27-Jan-1947. Here's the link:
http://americanradiohistory.com/Arch...7-01-27-BC.pdf
Article calls out TV production for RMA Members for 1946 as:
“Output of television sets in 1946 totaled 6,746 units, of which 3,561 were shipped in December. The total video production for the year comprised 5,070 table models, 1,344 direct-viewing radio-television consoles, 10 projection consoles, 51 radio-phonograph combination projection consoles, 1 direct-viewing radio-phonograph console.”
A little later in article it says, with regard to radio, and I assume TV as well:
“RMA member production is estimated at about 90% of the industry total.”
This would put industry total around 7,500 sets, which seems to support the previous article. Also, over half the 1946 TVs produced shipped in December, so it seems they did get a late start on the '46 models.