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Author Topic: Homebrew transmitter  (Read 10674 times)
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VK7ZL
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« on: November 20, 2010, 03:38:43 AM »

Here is a fine example of a homebrew transmitter to be operated with great care.

http://www.kkn.net/~tree/160/HomebrewTransmitterQuitoEcuador.jpg

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AMroo
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« Reply #1 on: November 20, 2010, 04:40:51 AM »

Cant say I don't love it.

We have had contact before I think it may have been on vkham.com or maybe on air, think I remember that you also run a Swan?
Like to hear you on the Aussie BA net, its on Sat morn at 9.30 EST (Australia, Sydney) I get on there at least once a month.  7.125mhz.

 
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VE3GZB
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« Reply #2 on: November 20, 2010, 08:23:34 AM »

SWEET! Now that's ham radio!
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KB5MD
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« Reply #3 on: November 20, 2010, 10:35:27 AM »

"It's ALIVE, IT'S ALIVE!!!!!
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WA3VJB
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« Reply #4 on: November 20, 2010, 10:40:40 AM »

That's almost outdoors. 
See the sunlight coming in the cinderblocks down at the bottom ?

Love the cooling blower fan, with customized suspension, and the specialized earthquake resistant framework respecting potential ground temblors around Quito.
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KL7OF
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« Reply #5 on: November 20, 2010, 10:42:06 AM »

I've seen this pic before...Looks like BC band
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WA1GFZ
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« Reply #6 on: November 20, 2010, 10:51:22 AM »

Tom Vu in the preplexiglass age.....couldn't resist Sgt. Andersen
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k4kyv
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Don
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« Reply #7 on: November 20, 2010, 11:36:58 AM »

It is an AM broadcast transmitter, not a ham rig.  In Ecuador, IIRC.

In broadcast jargon, it is called a "composite" transmitter.
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Don, K4KYV                                       AMI#5
Licensed since 1959 and not happy to be back on AM...    Never got off AM in the first place.

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KA0HCP
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« Reply #8 on: November 20, 2010, 11:38:19 AM »

The best feature?   No Test Points!  Touch it anywhere and you can get any voltage you need!!  Smiley
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New callsign KA0HCP, ex-KB4QAA.  Relocated to Kansas in April 2019.
WQ9E
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« Reply #9 on: November 20, 2010, 11:44:00 AM »

At least parts access for service is easy!  I just replaced the arm tension belts in an Akai GX-747DBX reel deck and it is the polar opposite of this "rig" in terms of easy access.

Before seeing this photo I never thought of using storage shelf units for building a rig, it would be like a standard rack on steroids.
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Rodger WQ9E
k4kyv
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Don
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« Reply #10 on: November 20, 2010, 12:11:56 PM »

It pales in comparison to Clyde, K4UXK's homebrew transmitter.


* K4UXK.JPG (406.47 KB, 1600x1200 - viewed 849 times.)
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Don, K4KYV                                       AMI#5
Licensed since 1959 and not happy to be back on AM...    Never got off AM in the first place.

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K1JJ
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« Reply #11 on: November 20, 2010, 01:39:26 PM »

Tom Vu in the pre-plexiglass age.....couldn't resist Sgt. Andersen

Hey, but at least I had  "Police Line - Do Not Cross" yellow tape around it to protect the innocent! ..  Grin

T
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Use an "AM Courtesy Filter" to limit transmit audio bandwidth  +-4.5 KHz, +-6.0 KHz or +-8.0 KHz when needed.  Easily done in DSP.

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KA0HCP
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« Reply #12 on: November 20, 2010, 01:42:21 PM »

I swear it looks like Clyde has a Weed Whacker wired in there!
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New callsign KA0HCP, ex-KB4QAA.  Relocated to Kansas in April 2019.
W3SLK
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« Reply #13 on: November 21, 2010, 09:16:28 AM »

Nothing like "Plug-N-Play"  Grin
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Mike(y)/W3SLK
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Todd, KA1KAQ
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« Reply #14 on: November 23, 2010, 12:25:46 AM »

I love tha shot of Clyde's 833 rig. Was telling someone about it recently and they looked at me like I was nuts. Well....anyway....

Frank, that beast in your basement looks like a nuclear reactor with the big steering wheel on front of it. You just need one of those big mercury columns on the side to go up and down for effect.

Sgt Anderson is definitely from a time before the Plexi-King age. He had the haircut to match, too!
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known as The Voice of Vermont in a previous life
WA1GFZ
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« Reply #15 on: November 23, 2010, 08:37:39 AM »

Great progress has been made on the beast. All the metal work is done and now that yard work is done I'll be getting back to it.
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