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Children, play nice please. -- Lee - N9LO?"I Void Warranties"

Looking closer at what you folks (Warren the first to report...) have discovered E.g.: “In my testing I also found the isolation across one relay was barely 45db in one configuration and 50 in

Awww. I'm heartbroken. Vince - K8ZW. -- Michigan VHF Corp. http://www.nobucks.net/ http://www.CDupe.com/

Heavens folks can’t we be a little bit more civil?

Me foolish .? The facts the STD TDA 7622 can take 13.8 / 14 V .. above 15V there is a problem.? This guy hopefully started up his PCB on near 12V. The TDA blew.? it was likely as shtty Chino knock

Jim, did you fit parts to run the Si5351 from 3v3 and not 5v of the original Raduino? I have made a similar board to your Clone also, with these parts fitted although same size as original. The Si5351

A serious answer is that at 36V the IRF510 has no SWR latitude the slightest bump or bad SWR and they disappear.? Stay? in the 24-28V is far more reliable assuming its RF stable and doesn't

PN? is 2n3866 1.5 W RF NPN silicon but based on recent reply it seems the smaller metal cased part was used as the pre driver on many boards.

On Sat, Aug 4, 2018 at 04:30 PM, Timothy Fidler wrote: > > Not only will the capacitor let go but the IRF will open up and spray > silicon and electron smoke about.? THe WA2EBY amp runs 40W max flat

Tim, no on the Diz amp. First mine is linear (class AB1 150ma per irf510), the base amp was class C.? About all I did?use was a few passives and the board itself. Used a differnt wind for all the

Allison the bad guys from the FCC could be reading this (they look like Jake and Elwood in the Blues B ) but they drive around in vans not ex Mt Prospect police cars.. they could shut down the imports

Thanks for that.. that means my rework idea will work .. probably .. at 7mhz it is all smoke and mirrors ... I looked at the photos and even went to an online video and I would swear what I am seeing

What your response implies is that you did no research before adding in your two cents. Why not search the archives and educate yourself on this matter prior to making yourself look foolish. Vince -

Michael, I will check my work again but I was concerned that if the adjacent capacitors were damaged, that might cause what I observed. Thanks for the reply. I look forward to getting this radio

I've been hinting at this for a while but unwilling to say it as i'd had too small a sample. With a sample size of over 4: Over 20mhz fail for SSB spurs,? CW ok Below 20mhz if not over driven SSB ok,

What this implies is that the uBitx in current production is not even getting a power up check in India on completion of the PCB.. perhaps you were unlucky and this one slipped through but it sounds

I just looked at both of my B40s, they both have a 2N2219A (metal can) with a heat sink attached. Vince - K8ZW. -- Michigan VHF Corp. http://www.nobucks.net/ http://www.CDupe.com/

Alison you should let Diz know about the rework change to his top of the line amp. He has already changed out the PA pair once already..? BTW his 1 W amp can be make to produce a solid 5 W out with

Is it possible that you are putting the TDA2822 in the socket backwards? Mike M. KU4QO

Yes they would work.?I would put them before RV1.? But you need 1 per band that is a lot of switching. If done before Q90 diode switching should be doable (less RF to cope with). No mater where its