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Meets Code (yeah right!) :-)




 
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April 21, 2018, 03:56:26 AM *
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Author Topic: Meets Code (yeah right!) :-)  (Read 761 times)
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steve_qix
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« on: April 08, 2018, 09:10:42 PM »

So, here's the problem.... Wayne WA1SSJ built a (very amazingly beautiful) 24 FET transmitter.  Pics of the rig are forthcoming when Wayne finishes with the labels.

However, back to the point - we needed to test the rig.  Wayne brought the whole thing to my place, and I ran an exhaustive battery of verifications and tests on the RF deck and pulse width modulator.  Needless to say _everything_ performed flawlessly right out of the box.

However, the transmitter, built of course correctly by Wayne had a nice 240V plug on the end - and of course I have not matching 240 volt outlet.

Undaunted, the next best approach to the problem was brought to bear.  And here is the result.  Of course this definitely meets the N.E.C.  Grin  (and if you believe THAT one, I've got a bridge for sale over in NY).


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PA0NVD
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« Reply #1 on: April 08, 2018, 09:17:24 PM »

The only problem I see it that it seems that the isolation bar of the left switch is reversed and should be mechanically linked to the right switch...The rest is ok  Grin
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KB2WIG
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« Reply #2 on: April 08, 2018, 09:22:38 PM »



I always tape the clip leads so they won't come loose or short things out. Safety matters.

klc
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What? Me worry?
steve_qix
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« Reply #3 on: April 08, 2018, 09:26:57 PM »

The only problem I see it that it seems that the isolation bar of the left switch is reversed and should be mechanically linked to the right switch...The rest is ok  Grin

Ah, very observant  Wink  The right switch switches between 240V (up) and 120V (down).

The left switch selects between direct to the power source (up) and using the Variac (down).
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WD5JKO
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« Reply #4 on: April 08, 2018, 11:09:00 PM »


I was at a fellow ham QTH last month. Same thing; 230v cheater cord with alligator clips to a power cord! I objected and he finally put insulation over the gators.

Jim
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WD8KDG
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« Reply #5 on: April 09, 2018, 08:18:50 AM »

How much are you asking for the bridge?  Grin

Craig,
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Todd, KA1KAQ
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« Reply #6 on: April 09, 2018, 09:28:32 AM »

I dunno, Steve - even the QIX Memorial Clip Lead Museum has a ways to go to beat this guy.

Adds a whole new meaning to the phrase "I just threw this together on the bench"....


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KD6VXI
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« Reply #7 on: April 09, 2018, 10:14:07 AM »

Some nice inductors in that pic.

I'm confused though.  Wouldn't it make more sense to hang the tubes in the window, rather than that huge inductor?

I mean, air cooling that inductor seems unnecessary.  The tubes, though. 

At least he's got them mounted up high where the air is stale and at its hottest temp!

--Shane
KD6VXI
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w1vtp
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« Reply #8 on: April 13, 2018, 10:39:48 AM »

I was there. The clip lead wires were BARELY warm.  Attribute that the very high efficiency of the class E transmitter

Al
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kb4qaa
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« Reply #9 on: April 14, 2018, 02:40:01 PM »

Yes, it meets N.E.C. (No electrical codes)!  Smiley
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W1DAN
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« Reply #10 on: April 15, 2018, 06:53:56 PM »

Radio Shack leads?

Those could have been used as a "soft start" circuit! ;-)

Dan
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n1ps
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« Reply #11 on: April 15, 2018, 07:48:47 PM »

First seeing the photo I thought this was the new QIX self driving car remote control.
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VE3ELQ
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« Reply #12 on: April 15, 2018, 08:04:36 PM »

John 11 : 35

Nigel
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steve_qix
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« Reply #13 on: April 17, 2018, 08:51:44 PM »

John 11 : 35

Nigel

Shortest verse in the Bible  Smiley
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w1vtp
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« Reply #14 on: April 19, 2018, 04:02:31 PM »

John 11 : 35

Nigel

Shortest verse in the Bible  Smiley

There was no weeping at the QIX lab   Grin
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