Hi everybody !!!,
Thank you very much for all the information and special THANKS to one friend
that will help with Transformer and Terminator Resistor.
I need some information about Preamplifiers for flag anntenna now...i read
about W7IUV preamp but i visited Larry´s website and i can not
Doug,
Go to http://w7iuv.com/ and click on W7IUV preamp in the left column.
That is a link to a PDF file, presently
http://w7iuv.com/preamp60/preamp_r60.pdf .
73, Mike
www.w0btu.com
On Fri, Aug 28, 2015 at 10:05 AM, Douglas M. Ruz Sobrado co...@frcuba.co.cu
wrote:
...i read about W7IUV
Don’t know if this Rev 5 is the latest as Larry made some value changes over
time.
www.mtmscientific.com/preamp.pdf
Steve WB6RSE
On Aug 28, 2015, at 10:12 AM, Jeff Kincaid w...@sbcglobal.net wrote:
Now that we've all retested the broken link, does anyone have a copy of the pdf?
'JK
kitsandparts.com sells a kit of an amp of similar design as the W7IUV
design. I have not used it personally. There are probably others around.
73, Larry W6NWS
-Original Message-
From: Douglas M. Ruz Sobrado
Sent: Friday, August 28, 2015 11:05 AM
To: Mike Waters
Cc: topband
Subject:
On Fri,8/28/2015 9:53 AM, Mike Waters wrote:
Go tohttp://w7iuv.com/ and click on W7IUV preamp in the left column.
That is a link to a PDF file, presently
http://w7iuv.com/preamp60/preamp_r60.pdf
Both the pdf link and the W7IUV preamp link on his main page get me to
an Error 404 Page Not
I built one of these preamps way back when Diz first began offering them. It
works great! I also purchased several spare 2N5109 as he had the best price.
Again, good transistors.
I tested the K ‘n P model preamp which I had built for a friend against a W7IUV
which I had built some years
That's amazing. But where did you get it? Mouser is sold out, 390 on order,
but no estimated delivery date.
73, Mike
www.w0btu.com
On Fri, Aug 28, 2015 at 5:26 PM, Richard (Rick) Karlquist
rich...@karlquist.com wrote:
It might be a lot easier to simply buy this amplifier IC:
DigiKey has some...
HMC580ST89ETR Analog Devices Inc | 1127-1059-1-ND | DigiKey
| |
| | | | | | | |
| HMC580ST89ETR Analog Devices Inc | 1127-1059-1-ND ...Find Analog Devices Inc
HMC580ST89ETR (1127-1059-1-ND) at DigiKey. Check stock and pricing, view
product specifications, and
Mouser has them in other packaging.
http://www.mouser.com/Search/Refine.aspx?Keyword=HMC580ST89ETR
Lee K7TJR
_
Topband Reflector Archives - http://www.contesting.com/_topband
Thanks, Jeff! Much appreciated.
Looks like it might be a fun winter project.
73, Mike
www.w0btu.com
On Fri, Aug 28, 2015 at 6:24 PM, Jeff Kincaid w...@sbcglobal.net wrote:
DigiKey has some...
HMC580ST89ETR Analog Devices Inc | 1127-1059-1-ND | DigiKey
It might be a lot easier to simply buy this
amplifier IC:
http://www.hittite.com/products/view.html/view/HMC580ST89
The specs are close to the W7IUV preamp.
I mounted one of these ICs on a breadboard and
tried it out with a short vertical whip and it
seemed to work fine.
Rick N6RK
On
The latest version 6
http://www.okdxf.eu/files/preamp_r60.pdf
73,
Martin, OK1RR
_
Topband Reflector Archives - http://www.contesting.com/_topband
For everyone who's looking for the W7IUV circuit and info . . .
Go to the following website for a company sells a W7IUV pre-amp kit
(which I have no experience with) and click on the highlighted
Published Plans link in the text to download the full .pdf file that
used to be on W7IUV's
This is supposed to be a great Norton amp. I have not used it personally
but it was previously mentioned in this I group I think.
http://www.cliftonlaboratories.com/norton_amplifier.htm#Price_and_Options
73, Larry W6NWS
-Original Message-
From: Bill Liz
Sent: Friday, August 28,
Getting back to CO8DM's original question about a preamp to use with a flag. If
the receiver noise level pops up and then drops when a receive antenna is
connected and then disconnected, then it’s likely that a preamp may not be
needed at all.
When I first played with a coaxial loop, a preamp
I totally agree with you Steve...i will try the flag first without preamp
and see how it play.
Actually, i will have a short coax run...about 30 or 40 ft...
73Douglas, CO8DM
No creo que haya alguna emoción más intensa para un inventor que ver alguna
de sus creaciones funcionando. Esa
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