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BTW. the new stack of RF Boards here. have the following updates: 1. Removed all of the MF stuff but left the jumpers to CLK0 and CLK1 so that they could be driven from something else or checked with

Yeah that’s where I am too… Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois Owner – Operator Villa

I was looking into this when I purchased all my parts. A lot of these devices like the Aliexpress ones don't have the matching pinouts for LMx17 - the Vi and Vo are wrong. The 78xx versions seem ok.

I was wondering what the preferred method is to connect the key, PTT panel jacks to a V11 board. Thanks Howard VE3HBH

Sorry Bill, no.Glenn?Sent from my Samsung Galaxy S21 FE smartphone.

Have you ever used one from aliexpress? Interested to hear if they actually work… because they sell those replacements for less than what I can buy just the chips for. Dr. William J. Schmidt - K9HZ

They pop up on Aliexpress for example (

Hopefully Fanny and Bob brought a bottle of spirits

Kind-of, yes! Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois Owner – Operator Villa Grand Piton –

A great thing about the LT3045 is that you can parallel them for higher current and even lower noise (with careful PCB layout). John Bennett AE0AM

Yep. I can get then for the same price here but I must order them for future delivery… Yeah. Make some small boards and… Fanny and Bob are both in the house! Dr. William J. Schmidt - K9HZ J68HZ

and in 1K lots they cost $3.37 each https://www.analog.com/en/products/lt3045.html 20 mins with a PCB Design package and Fannys your Aunt !

Yep that’s the ticket! I had in the back of my brain designing a board identical to that little guy… that would simply replace the regulator and there it is! I think I could do it for less than

Great idea - a French DIY audio company offers these for sale (not cheap): https://www.audiophonics.fr/en/voltage-regulator/ldovr-lt3045-lm31x-ultra-low-noise-voltage-regulator-33v-p-16198.html

Yeah. That’s where the “DUH” came from… Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois Owner

I think that depends on the circumstances but yes the low noise parts make a much bigger difference. Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator

Hi Bill Not sure how true this is but apparently LM317 style regulators are better than the LM7805's.?? Not as good as a dedicated low noise part though for sure. glenn vk3ep

These are great, Oliver. If it's okay with you, could you send me the hi-rez versions of the graphs? Al and I would like to include them in the book. BTW, I tweaked the toroids in the LPF board to

All: The final version of the code is about to be released by Al and I and we are turning it over to Oliver to care for it in the future. There are coding style differences that some people will

It's different for every different amp design... needs to be tested, BUT IN GENERAL you want enough headroom so that you never reach saturation of the devices... that means PTP power divided by four.