There are probably thousands that will work but I doubt there are 100s of HT-9 transformers available. Apparently this is a weak component in the HT-9 so you might be better off with a non-HT-9 replacement.
6 meters had some CW working the aurora but very little and no SSB. On 10 meters heard a 9 land beacon on CW popping from the aurora but little else. When down to 20 meters SSB and worked some South America DX.
Having worked aurora conditions many times in the past on 6 and 2 meters, it really didn't excite me with this intense aurora. I suspect today there are many of the newer amateurs who really don't know how to take advantage of the aurora.
10-10-24 Visible Aurora in WA state. I pointed North and called CQ on 10M for a while. listened around and only heard one other sig with the noticable aurora warble... I remember working Florida on SSB Aurora last cycle. Not much action tonight.
I understand what you are doing..... For the moment forget about Steve circuit...
You have 8 modules .... each one is a transmitter in its own right producing say 90% efficiency and looking into 6.25R... From your squarewave generator with a 50:50 DC apply that to each modules input ( single Phase ).... Then you just feed a wire through all the transformers grounding one end and the other to your LPF etc: .... ( new design )..
You have already done this with your OLD system but complicated it by using different phases....
As you already know its an adder to increase your output power level...
Attached is a better schematic with the old (two phase drivers) vs the new (single phase driver) designs. I am wondering if with the single phase the total combined output misses some balance or decreases the efficiency. Steve combines in his E class amplifier few modules driven with one phase but he also combines other pallets with the opposite phase. What would be the disadvantage if he wouldn't add the opposite phase driven pallets other then getting less output power? I'm in source for VFO DDS with TFT screen, advices or a source to provide are welcome.
Wooww there is a lot of work there.....very good... Method B would be easier but since this TX is working maybe best to leave as is.... Perhaps in your next transmitter try then....
I have a replacement for the IPP530N50 FET which will post to the Forum soon... You could give them a go on say 40M .....
