Re: Micro BitX No Audio TDA2822?
Could work, first time this was suggested.
An extra wire, the Raduino regulator would get hotter.
?
By
Jerry Gaffke
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#44680
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Re: RD transistors, unobtanium?
Title. Fake news.
Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ
Owner - Operator
Big Signal Ranch – K9ZC
Staunton, Illinois
Owner – Operator
Villa Grand Piton -
By
K9HZ
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#44679
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Re: RD transistors, unobtanium?
Where did this info come from?
RF Parts shows these in stock.
I just purchased both the RD16HHF1 and RD15HVF1 in quantity from RF parts
and received them in 2 days.
Mitsubishi still shows these on
By
Dave Bottom <ars.kd6az@...>
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#44678
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Re: RD transistors, unobtanium?
Actually, the closest available MOSET to the IRF510
is the IRF512, which is the same device, only it is rated
for a drain voltage of 100v. It goes by other numbers as well.
There are many devices
By
John Backo
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#44677
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Re: 13.8 v power supplies safe for bitx?
When you current limit the PA you are doing the same thing that happens
when you overdrive a linear amp and cause flat-topping, i.e. the PA is
driven out of its linear range.
That causes spurious
By
Tim Gorman
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#44676
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Re: Micro BitX No Audio TDA2822?
Jerry has the group discussed pulling 5v from somewhere else like use the 5v that powers the Raduino? Maybe temporarily until they can get a regulator and or new WX chip?
Joe
KD2NFC
By
Joe Puma <kd2nfc@...>
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#44675
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Re: Raduino oscilators. 33mhz and 57mhz. Documentation says one thinng, but this is what I measured.
Jerry,
A lucid and easy to follow explanation! Thank you!
tim ab0wr
"Jerry Gaffke via Groups.Io" <jgaffke@...> wrote:
By
Tim Gorman
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#44674
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Re: Soldering gun or iron
I used to watch my grandfather repair tube TV’s with this one.
By
Joe Puma <kd2nfc@...>
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#44673
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Re: USB interface cable installation uBITX
I used the one foot long cable and it fit perfectly in the Hammond Case as
you can see.
I ordered it on Amazon just because they can deliver in one hour, or next
day depending on how quickly you want
By
Dave Bottom <ars.kd6az@...>
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#44672
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Re: finally finished my ubitx
Looks great Tim, I agree with you, it's a nice rig for anyone.
Joel
N6ALT
By
Joel Caulkins/N6ALT
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#44671
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finally finished my ubitx
Finally found time to finish up my ubitx.
I am *impressed*.
Tuning works fine. Audio sounds fine. Calibration is dead on. BFO is
dead on. Using a 16ohm speaker the audio is plenty loud and the ws
By
Tim Gorman
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#44670
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Re: Looking for Completely Functional Dual-Band 20/(17/15/10/6) Meter QRP Rig with SSB/PSK
#bitx20help
Go for Quansheng uv-r50.? Far far better than
By
Sajid Rahum
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#44669
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Re: Micro BitX No Audio TDA2822?
Thanks Jerry
I did see the other fix to add LM7805 regulator plus 1 .1uF cap.? I will order 2073D if someone has tried it as well.
By
Sajid Rahum
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#44668
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Re: Soldering gun or iron
The 862D+ is going for about $50-$55 right now. I have two of them and they both work great.
Vince.
--
Michigan VHF Corp. http://www.nobucks.net/ http://www.CDupe.com/
By
Vince Vielhaber <vev@...>
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#44667
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Re: Soldering gun or iron
I have a small butane torch (harbor freight) that comes just before the propane torch.
Vince.
By
Vince Vielhaber <vev@...>
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#44666
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Re: Encoder details from various suppliers
I wish they (Chinese ebay sellers) were a little easier to communicate
with. The generally send this pre-packaged reply which says " We do not
care about that detail" ! There is one, called Alice with
By
Michael Shreeve
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#44665
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Re: Soldering gun or iron
Weller WTCPT Soldering Station ( http://www.eham.net/reviews/detail/4478 )
By
Randy
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#44664
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Re: Soldering gun or iron
Me, too. I got:
It was about $70 and it's pretty nice for the money. It has an iron, but also hot air. I've only used it a few times, as I use my old iron for thru-hole stuff.
Jack, W8TEE
By
Jack Purdum <jjpurdum@...>
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#44662
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Re: Soldering gun or iron
Thanks everyone for your suggestions and help. As soon as I get back the house I will do some more research as recommended on the iron and other parts.
I am currently waiting by my mail box for DHL
By
Fr Richard R <rickocr2005@...>
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#44661
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Re: Soldering gun or iron
I purchased a hot air rework / iron station for around 70$ I can do smd
work with it
By
Christopher Miller
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#44660
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