Apologies for the bandwidth. Someone on here is making a library of QRM noise/video. Please advise. Tnx es 73 David G3UNA

Bill I can't help you, but, over here if an item is second hand/second user/pre-used there should be no tax to pay on the basis that tax has already been extracted (as in pulled teeth). Hope that help

This “leading edge spike” syndrome has been around since well before the K3 came on the scene. Hollow state amplifiers could easily absorb them, even if they tripped some other circuit. I am surprised

The full schematic seems not to be available, just pages 1, 2 and 5 from what I can get on the web and it's not in the user manual. 73 David G3UNA

Looks like a buffer from K18 coil would provide a good starting point. David G3UNA

Thanks, Joe, I was beginning to think it would need some modest surgery. 73 David G3UNA

I have 2 multi-band antennas a long way from the shack and wish to use a single coax with a changeover relay at each end. Let's say antenna A and antenna B. In a basic set-up I can select either anten

Mel, be interesting to see which of your antennas does the job David G3UNA

"Distortion" is too large a description for what we hear. Some distortion is not undesirable, eg some folks love the "triode" sound. It makes a big difference listening to even harmonic distortion v o

I've known it happening on other transceivers and it has turned out to be a relay David G3UNA

It's a lot easier to achieve correct and even pressure using a spring clip that presses on the body of the device, rather than one end. Several shapes available. I can understand the desire to use a s

I would caution against the Hefty Fist technique. This can distort the tab and/or the panel it is attached to so that part of the tab is no longer in contact. I recall a torque setting for optimum con

Not something I normally get involved with, so, please satisfy my ignorance: what are the main parameters we are looking for, is it just temperature stability, drift, low noise, all of the above? What

I think 400W is nicely backed off and conveniently coincides with our regs. Lest we forget, there is a relationship between stress and reliability: I'm guessing that voltage is the lowest problem with

Sri for truncated message - to get better service from an experienced broker. David G3UNA using #smart#phone

This is why some folks buy more expensive insurance -

I would be tempted to send just the suspect board to the UK agent for a go/no-go test. David G3UNA

The IC2KL was liquid cooled from the devices to the outside world but still employed a fan to ambient air. It is a very nicely packaged amplifier but used a separate psu and was still fairly noisy as

I have the opportunity to erect a rotatable Waller flag, though with difficulty or, much more easily erect 2 fixed flags at right angles with diversity in the K3. I would appreciate opinions on the me

I've been looking at this device and I'm a little put off by the adverse comments from some buyers. I would need an expert by my side, so, if this works for you, I'd like to know how easy it was to wo