Jim, You may have missed it, but his diagram shows his 1M ground rod directly connected to his antenna, with no grounding for his equipment. I certainly hope the diagram is incorrect and he is not de
I said "dirty Balun", meant to say "Ugly Balun". I guess a dirty one would look ugly ;-) 73, Mike W5CUL Jim, You may have missed it, but his diagram shows his 1M ground rod directly connected to his
Jim, I have a similar project that I have been working with off and on for some time now. It is a Balanced to Balanced Antenna Tuner feeding a loop antenna with open wire, with coax to the station an
Not to agree or disagree with any of the statements thus far on this subject, I would like to add a real-world application that does seem to be working fine with no RFI issues at legal limit. This is
I am looking for comments from anyone who has field experience in using Machlett 3CX800A7 tubes in their Alpha compatible amplifiers. Is the input impedance different from that of the EIMAC version,
Probably just some regurgitated misinformation or maybe just plain nomenclature confusion. 73, Mike W5CUL I was selling some 4-1000A duds as display items for our local radio club when a guy came by
John, Here is one source, Max-Gain Systems, Inc. http://www.mgs4u.com/RF-Microwave/turns-counting-dials.htm 73, Mike W5CUL --Original Message-- From: Amps [mailto:amps-bounces@contesting.com] On Beha
Ralph, I use silver grease made by M.G. Chemicals. It is rather pricey, but just a dab will go a long way. My local Fry's store carries the stuff, when they can keep it in stock; it sells fast. http:
Since it is a serial connection, has anybody thought about or tried modifying the comm Link to a USB to serial. FTDI makes a packaged USB to Serial adapter, the chip is in the package. I purchased on
So today I fired up my Alpha 87A for the first time in several months. It powered up for about 30 seconds then shut down with a Fault 37. The fault code basically indicates the Bandswitch is not movi
So today I fired up my Alpha 87A for the first time in several months. It powered up for about 30 seconds then shut down with a Fault 37. The fault code basically indicates the Bandswitch is not movi
So a follow up for those who are tracking this Alpha 87A issue. Pulled HVPS PCB to gain access to the LVPS Fuse. Fuse Checks out good. While the HVPS PCB was out, was able to unseat and reseat the ha
So a final update on the Alpha 87. No fault indication via the Fault LED's was the clue to the root cause of the Hard Fault 37 seen. The LVPS was not producing 10vdc nor 5vdc, thus most of the ICs on
Good Afternoon Gentlemen, I have a rather quirky situation and a question about it. I have been chasing down a low level 60Hz hum I get across my speakers when I plug my Alpha 87A into a shared A/C S
All, First Thank You to all who replied!!! I received a lot of replies off list, too many to answer individually. So I will attempt to answer all the questions in this one response as best as I can.
All, Just a slight correction on the Cable from the Main Electrical Panel into the Bedroom. It is a 6/3, 6AWG with L1, L2, N & a Ground wire. Thank you, Mike W5CUL All, First Thank You to all who rep
All, Problem Resolved. Thank you to all who provided advice, guidance and knowledge in working through this issue!! Root Cause: Alpha "Green Wire" tied to Neutral due to using a 3 Pole 220Vac Dryer R
I think what was being said there is that if an Amp has 110Vac Fans, then there should be an independent Neutral associated with the Amp as well, to include L1, L2 and Ground. I think what was being
Jim (W8ZR), I think you hit the nail on the head in terms of most amateurs...." Frankly, most hams, myself included, dont know or care much about the electrical code. They want to hook up their radio
For an input SWR when using a solid state amplifier against a PT2500 Amplifier, why not use something like this? It will provide a 50hom load to the transceiver input regardless of the band exercised