Martin, I didn't use the filter because this was an A/V only test, no flight components, so no noise to filter yet. And I did solder myself
Thanks JB, I had a 3A/5V UBEC around that I just used to test everything, and my tx is indeed fried. ran everything for a few min (used a meter and verified the voltages, current). Got no picture on the rx, and the vtx remained stone cold. Maybe I should have started with that instead of the stock board.
Thanks for the explanation Hucker! That makes sense
Have another vtx coming from nghobbies (and his PSU was back in stock, can't wait to use something more reliable). Hopefully I can get something running next week!