From a recent photo on the FB group, it appears that Lab599 has been busy now with three variants of the transceiver: the original Discovery TX-500, the TX-500PRO and the Altai-ATU which has no-VFO dial, programmable frequency channels and an ATU. There is also a mention of a 100W amplifier (bolt-on like the battery pack) called the RA-500 (which looks like PA-500 in Cyrillic, although not the same as the DIY599 PA-500.
