21-06-2023, 08:28 PM
Hi Michael.
Vacuum caps are horrendously expensive, I think that in itself puts people off. Although I can use 50 watts I am a hardened QRPer, in fact the 80meter band loop tuning capacitor flashes over above 15-20 watts, I've a wider spaced and better quality one that I'll fit hopefully when I rebuild it with copper pipe rather than stranded wire, rigidity is important as loose wires cause drift of SWR if they move. I'll be making the tuning cap motorised as well.
Vacuum caps are horrendously expensive, I think that in itself puts people off. Although I can use 50 watts I am a hardened QRPer, in fact the 80meter band loop tuning capacitor flashes over above 15-20 watts, I've a wider spaced and better quality one that I'll fit hopefully when I rebuild it with copper pipe rather than stranded wire, rigidity is important as loose wires cause drift of SWR if they move. I'll be making the tuning cap motorised as well.
