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My friend VA3AQB. Alan, has one. ?He’s had his share of problems wit it. ?If you email him at his call. Yahoo.ca he can tell you much about it. ?I know he had issues. ?He fixed everything

Slightly off topic, I am using an old Heathkit antenna switch that has the control voltages riding on the coax. The series DC blocking capacitor in the outside box has a piece chipped out of it. Maybe

PS: I'd love the Commander but I already have one. :-) --

G'day John. USPS? Pack and Send? The latter uses the same courier companies but they have big accounts, so the prices are often vastly cheaper. I don't know why it costs so much to get stuff out of

To be honest with you guy... stay away from it. i Know 4 owner of LA-4000, 3 got home for major repair + modification. The last one i dont know i never spoke with the owner but i bet is power board

I need to ship a Drake L4B to a ham in VK6 land. The quotes I found from FedEx DHL etc are totally nuts. The buyer isn't in a hurry but somehow we have to get the shipping to something reasonable. So

Thanks Lou. Hsu was a great contact. He helped me out on many occasions, when it came to sourcing good quality stuff from China. Not only that, I reckon he is a very decent and honest person. As I

VA2NA did an extensive IMD write up on the Amptec LA4000, back on Oct 22, 2017. It's Item #15, under 'files' on this site. Uses 2 x FU-728's....and runs 4 kw output. Appears to be a clone of a manual

Hsu and his partner who sold the HF 2013 amplifier back in 2013 had broken off the partnership and his partner went on to start the Amptech company. ?Hsu was supposed to come to Dayton in 2013 to

Anybody seen or heard anything from our friend Hsu lately. I sent him an email a few weeks ago and have heard nothing back from him. 73, Alek. VK6APK. -- From sunny Binningup Family Businesses: SP

I talked with Bill a few times and even bought some of the stuff he no longer had the time for. I hated to see he's gone. There are fewer and fewer of the knowledgeable left and few with any knowledge

Well, shit. Another good one gone. RIP Bill. 73 Randy KZ4RV

I?m sorry to see this. Did have a number of QSO?s with Bill. RIP OM de Jim SM2EKM Den 2019-06-20 kl. 23:31, skrev jim.thom@... [ham_amplifiers]:

Saw this on.... 'amps'...posted by Rob, K5UJ. "Saddened to see Bill Turner, W6WRT listed in July QST Silent Keys." ## Bill was a nice fellow, and provided some good insight + ideas / fixes on a lot of

Trus rms voltmeters work really good with ratty waveforms. They will handle anything you throw at em...including sawtooth, square waves, and loads of harmonics. True rms ac ammeters, good ones, have

What precision do you want? For what you probably want, I would think a true RMS volt meter of a known accuracy within a couple % and a known resistance should suffice as measuring the calibration,

A thermocouple meter will measure true RMS regardless of the waveform. Old school stuff.

A few years back, on some FB group I belonged to at the time, I forget which, somebody posted a picture of a large industrial transformer, I'll guess it was maybe 10' square and 8' tall, I really

Somewhere, AG6K is smiling... 73 Randy KZ4RV

<The garbage coming off the power line, as well as "in house" appliance <generated trash doesn't give us much better. The old Amp meters can <give us effective amps based on heat and those don't care