Forgot to mention... ?I used this heatsink: ?
For low-power work without the input pad, the WA2EBY linear works well for WSPR, and the PSU flexibility provides some easy output power tailoring. ?I use a 'drok' DC-DC boost converter when I want to run full output power. ?250mW of input and 13.8VDC gives some signal boost, and the output power can be increased by adjusting the DC-DC through 28VDC.
