Hi Luis, Chris and LF, enjoyed the pictures from Oscar.. when I see tubes my heart.. I don't wonder for the filament current (at 5V it means 150W) but how Oscar arranged the PI or PL output matching
.. gadeamus igitur :-) I wish to make my congratulation to VE9GJ because he was able to detect 3 of my MF WSPR transmission last night! Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az 201