One of the reasons I have mot gone to high power on 160 is the cost of capacitors for my omega match - at least $300. Anyone know of any workable alternative? I remember someone writing about using c
Pete, I used a big 300pf breadslicer with somewhere in the 7.5 to 9KV range ( I forget the spacing, it was a vintage Johnson) and a couple of 857 size ceramic caps for my Omega at a prior QTH. Smalle
Making capacitors out of coax seems like an easy solution, however they end up being fairly lossy due to copper loss. Think about it: you would not deliberately make a capacitor long and skinny. The
One way around this is to use multiple shorter sections in parallel. One can also use series/parallel arrangements of fixed "doorknob" capacitors to obtain the necessary voltage/current rating to pa
One of the reasons I have mot gone to high power on 160 is the cost of capacitors for my omega match - at least $300. Anyone know of any workable alternative? I remember someone writing about using c
information? Yes, there is a great solution, I'm using it for almost 10 years. The issue with capacitors in 160m is the dielectric an most capacitors get hot and change the capacitance. I used 19 x 6
Hi Pete, I've used a short length of RG-58 coax for just that purpose in one application here, to supplement the "C" from my air variable at the base of one of my extended inverted "L's"... There's n
Thanks, Tom. I thought I recalled this advice from an earlier reflector post, but couldn't find it. Thanks also to everyone elsewho replied, and the many interesting ideas My single 97-foot tower has
Using a thicker wire, or multiple wires in a drop, always helps. Last single thin wire I used was around 1970. :-) Thanks, Tom. I thought I recalled this advice from an earlier reflector post, but co
Yes, there is a great solution, I'm using it for almost 10 years. The issue with capacitors in 160m is the dielectric an most capacitors get hot and change the capacitance. I used 19 x 62 pFNPO 3KV c
Yes, there is a great solution, I'm using it for almost 10 years. The issue with capacitors in 160m is the dielectric an most capacitors get hot and change the capacitance. I used 19 x 62 pFNPO 3KV c
I don't know much antenna theory, ask me something regarding human biology & I might be a better authority. However, back when I lived in IL in the early 90's, I used to have a tower and not enough s
I've tried doorknob caps, they get hot, drift and I've had a couple explode! I've used air variables, they work well until a bug crawls between the plates. I finally gave up and went with vacuum vari