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Sorry iPhone sent by a light touch of finger by mistake. Bob, Jim and others, Here’s a pic of the 6m prototype. Firstly, I printed my own T50-0 toroids; secondly, you’ll note the T50–6 in the

Yes try GPT4 its much better, and as from yesterday they are offering an Enterprise edition that keeps all company data private and safe. Its loads better than chatgpt but costs $20 a month, well

Before making a radical change to the PA transistor (BS170s) thermal design it is necessary to fully understand the the thermal parameters.? As Hans ha pointed out: * The six layer board conducts

Hello Billy 1) You're reading the wrong messages. There have also been several nice reports of success stories. 2) You also need to remember that all mailing lists have an inherent negative bias, in

?Bob, Jim and others, Here’s a pic of the 6m prototype. Firstly, I printed my own T50-0 toroids; secondly, you’ll note the T50–6 in the BPF; thirdly, you’ll note the binocular is not the

nvm, I see someone else started a thread with that exact question

I have used it to generate outlines of Python code. It speeds up the initial process when I don’t know what libraries I need to use. My first try was a 3D water fall plot from a wav file of passing

Hans, Received message my QMX shipped today. Thought I would be excited. But instead, I am reaching panic stage. With all the misery I have read in the last week, I figure my chance of ever getting it

I wonder how many of you are using chatGPT/GPT4 etc to assist in various things like Ham radio, programming or work? Paul DJ0CU G4ADF

The finals don't need any protection. As Jim says, just follow the science of what you are transmitting into and make sure all your antenna connections are sound. I would certainly recommend some

Hi Steve Hi all - mine is also complete and working extremely well. Amazing kit and Thanks Steve! Nice to hear of your success. It's what you get when we put in a 25 MHz TCXO frequency reference

If you're looking for more info on those HP and Agilent power supplies, it's now on the Keysight website. Agilent, which was originally spun off from HP when the parent company chose to focus on its

I worked many years for HP/Agilent, so you can guess my suggestion!! Fortunately, it's just a power supply, so not priced crazy. You can also find cheap (garbage) but workable imported jobs on

The best solution is to use a good, resonant, low SWR antenna. I have made almost 500 contacts with my stock QDX (ver 5) and have had no issues. My QDX is powered by a 12v 1 amp switching supply. Jim

Denny, The following are not "Name Brand" that I have purchased and am very happy with the performance: For a linear supply, I have the

Hi Denny, I personally use this one: https://www.amazon.co.uk/gp/product/B09C8LWV9W/ref=ppx_yo_dt_b_asin_title_o07_s00 It has a switch which turns off output power (I was surprised to see this was

Sorry Dave. I should have been more specific. I want a test bench power supply for construction and testing of QRP radios like the QMX.

For what purpose? rig high power, rig low power, test bench PS? ??

Hi Bojan, I've read a number of comments about an adjustable current limiting PS and I am wondering what you and others are using and would recommend. 73 - Jon Halterman - KJ4CRW

I would appreciate any recommendations for a decent current-limited power supply. I’d prefer to stick with brands of known quality, but would appreciate any suggestions you might offer. Denny