Jerry, The other thing I need to look out for is a slipped disc in my back! I'd forgotten just how heavy these old radios are. I had to enlist the help of my XYL just to slide it out of its cabinet!
Good question - but I'm not the owner. I'm simply checking it out for him. He owned an SX28 when he was a teenager in the 1960s - I think this is a "nostalgia trip" for him rather than a restoration
Yes - the ones in the RF/Mixer/Osc sub assembly are well nigh impossible to reach without a complete strip down. I'm not offering to re-cap it for him - it works well enough as it is for him to have
Rick, I you use the T-match simulator at: http://fermi.la.asu.edu/w9cf/tuner/tuner.html you'll find that minimum tuner loss usually corresponds to minimum inductance. Tom (W8JI) has some interesting
It's worth knowing that the ARRL TLW programme very significantly underestimates the loss of ladderline. I much prefer the free, and more accurate, calculator at: http://vk1od.net/calc/tl/tllc.php 73
What Rick said, plus: there was a higher power version produced - the KW109. This quote from G3RZP on another forum: "The KW109 design is not well suited for really high power - say above 500 or 600
I'd love to get hold of a Titan amplifier - or possibly a Centurion - to complete my CorsairII, OmniVI, line-up. Is there anything I need to look out for on these amps - common faults, lack of replac
Gordon, The serial number on my CorsairII is 580-01861. I purchased it new from KW in October 1986. Of course, manufacture could have been some considerable time before it was delivered to KW - the U
Interesting! I have two Corsair IIs and both have serial numbers starting 580 Steve G3TXQ On 24/02/2011 16:10, Carl Winkles wrote: I have seen some other Corsair II's with a serial number starting wi
Thanks Barry. I would want it to be the 425 to match the "cosmetics" of the CorsairII and OmniVI. Regards, Steve G3TXQ 4CX800/GU74B tubes are readily available and reasonably priced,although you migh
It has to be grey or it will offend me :) http://www.karinya.net/g3txq/shack/op.jpg 73, Steve G3TXQ Your comment is like saying British pounds don't look good in your wallet next to US dollars or Eur
Dave, Yep - the colour of the LP-100 offends me! Out with the spray can, I guess :) The home-brew twin-meter SWR unit next to the LP-100 was an attempt to replicate the TT case style and colour - fai
There you go, John - that's at least two of us in the world who prefer the grey :) Regards, Steve G3TXQ wow Steve that picture of your shack is beautiful ! mine is all black I like yours better . joh
Jerry, Following extracted from a discussion on the Yahoo NVIS discussion group: "I believe George Hagn was the first to use the term, "near vertical incidence skywave" in 1967 and Sol Pearlman at Ft
OK - just so there are no disputes in 100 years about where the term originated and by whom ........ I'm going to re-design my antenna system to provide strong signals at the low take-off angles need
OK - for the benefit of history, and so that my obituary is accurate, it was invented at 2130hrs GMT on 4th January 2011 in the small UK village of Milton Malsor ;) 73, Steve G3TXQ Steve, Did you inv
The Compass is nearer - about 100 yards; if we made it the Greyhound I'd have to stagger 150 yards to get home ;) 73, Steve G3TXQ == JHR == On 1/4/2011 5:26 PM, Steve Hunt wrote: OK - for the benefit
I presume the "wink" indicates that is a joke ! The only thing that would improve the elevation pattern would be improved ground conditions in the Fresnel Zone where the ground reflections are taking
There are two distinct and different issues here. Take a look at how the ARRL Antenna Book tackles them quite separately. 1. Antenna efficiency: directly affected by the ground conductivity in the Re
The ARRL Antenna Book puts it much more succinctly than I just did - Page 3-20 of 21st Edition: "In short, far-field losses for vertically polarized antennas are highly dependent on the conductivity