The HRSA had an auction of 250 radios recently. I purchased 16 radio's for just under $1000.
These will be showcased on Saturday, 29 April 2023 at 7.00AM Australian Eastern Standard time on the Electrosound YouTube channel.
One thing of interest is that a mid 1960s National Panasonic R470 is outperforming a mid 1970s RF2200BA. The RF2200 is supposed to be the best thing since sliced bread. I did clean the pots and switches, but we'll see if a complete recap, and full alignment makes an improvement.
I hope to see you Saturday Ballarat time!