Radioddity has a built, ready to plug-n-chug LPF available for their 100W amp that is a fraction of the size of the full kit V6. Costs about $100 if memory serves me correctly. However, if you wanted

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Ken, Any chance you might make the design files available (or even just the gerbers) for that LPF? Looks pretty nice! 73 Mark AJ6CU

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The Linear Boards WA2EBY are available on our website. https://amateurradiokits.in/product/linear-amp-pcb-wa2eby/

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Hi Ken, I like your filter board! I've had the "it would be cool if the µBITX could change bands on the amp" thought in my head for a while but haven't gotten farther than that. Nice work! Leonard - y

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Hi, It does look nice for single band use as it looks like Sunil has added a spot for a single LPF on the amp board. Probably it's set up for 10m now, but you could choose a lower band as desired. 73,

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The bare board should be available on www.amateurradiokits.in in a few days. A kit with most of the components will be available later. 50V is too high - 28V is the absolute max. It requires at least

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Can I buy somewhere this marvelous amp? Does it work in 50V PSU? Cheers, Rafael PU2UIT

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Andy, Regarding the multi-band LPF board - I needed one that was PC-controllable because I mainly operate remotely (shack is upstairs, PC is in family room). So I designed my own board, which uses rel

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Leonard - your manual was among the best guides that I found while researching and eventually building the amp. I think I've still got a browser tab opened to it on my shack computer. Kudos & 73, Ken

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Mike Kossar, wa2eby, Is who you want to thank. He designed the amplifier. All I did was write an assembly manual. and component location chart. Leonard kc0wox.com

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So I have you to thank? I built this amplifier a few years back, and the availability of the toroid kit made thins so more convenient. Even with shipping across the pond it was still very reasonably c

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Diz at kitsandparts.com has a toroid kit for the WA2EBY amp About 20 years ago when I made my amp and manual I asked Diz if he would make up a torroid kit and he did. It simplifies obtaining the torro

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Gah - forget the best part: Diz at kitsandparts.com has a toroid kit for the WA2EBY amp. https://www.kitsandparts.com/WA2EBY_toroidkit.php 73, Andy

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Ken, It looks like a nice board, especially if one wants to work with a single band. The original amp project has two boards - one for the amp (with the same input attenuator option - add resistors or

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After running my uBITX barefoot for the past 18 months (with 1700 FT8/FT4 contacts) I decided it was time to add a little more power. The ever-popular WA2EBY linear amp seemed like a good route, excep

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Hi Jim, Gotcha - that makes a lot of sense. Or if I only want 100-150 watts out I could just use the 2 pill - and leave the Collins for my benchtop station. Thank you, Dean KK4DAS

#ubitx #v5 #linear-amp

Dean, your 30L-1 likes to see 50 watts or more to start to make good power. While it should amplify the output from a ubitx, it's a kilowatt-class amp with only 10 or 12 dB gain. So with the nominal 1

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That's great, that it worked so well. I know I need to put a beefier relay in to switch the amp to TX. I know I need to put a diode across the relay coil to protect the uBITx I'm looking fir advice /

#ubitx #v5 #linear-amp

Last year I fed my BitX40 into a homebrew grounded grid sweep tube amp.(which I think is more boat-anchorish than Collins, no offence.) This amp has spent nearly 20 years sitting in a shed in Hawaii,

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Hi all - ubitx 5 continues to perform well. Got digital modes working great and also making contacts on SSB phone. My question - does anyone have any experience using ubitx to drive an old-school vacu

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