2.4 GHz linear board....

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Jan Panteltje 11 years ago

2.4 GHz linear board from ebay came today:

This is what the PCB looks like:

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And this is the other side, the copper bottom heat spreader, PCB and heatspreader are one thing:

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It is an interesting board, the transitors (MOSFETS) seem to be a special issure of the MRF286, datasheet says ' pilot production prototype'...

The good thing is the trimers, on side of the push-pull with solder stripes, opposite site with a real trimmer, need to shift this from 2.3something GHz to 2.4...

Bias pots for the MOSFETS, temp sensor outputs....

Proof that it is all possible is already done, somebody beat me to it:

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Watt Amplifier.htm

Note the metal frame to push the heat spreader against the heatsink.

More parts came in.. ceramic filters for about 1 GHz...

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Syd Rumpo 11 years ago

You should treat that woodworm.

Cheers

Syd

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Jan Panteltje 11 years ago

On a sunny day (Tue, 07 Oct 2014 20:03:39 +0100) it happened Syd Rumpo wrote in :

Those are black holes to the other side of the universe where young virgins dance the hulahoop

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Reinhardt Behm 11 years ago

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Have you checked the number, should be 70.

Reinhardt

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rbehm 11 years ago

Better than this one? Please let us having some fun without insults as is usually the case here.

Reinhardt

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Jan Panteltje 11 years ago

On a sunny day (Wed, 08 Oct 2014 09:47:28 +0800) it happened Reinhardt Behm wrote in :

Na, I think the answer is 42

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amdx 11 years ago

Oh my, that means 28 have been---- violated.

However, I think the number should be 72.

Mikek

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John S 11 years ago

Is there not a group for comedians?

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John S 11 years ago

My response was meant to be as humorous as the post to which I was responding. Perhaps I misjudged. I apologize.

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Jan Panteltje 11 years ago

On a sunny day (Wed, 08 Oct 2014 06:58:08 -0500) it happened amdx wrote in :

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amdx 11 years ago

Context/nuance is often not conveyed in text, so no big deal. May be one reason emoticons were invented and useful. A smiley face would have made your comment different, no matter how juvenile it makes you feel. :-) Mikek

This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com

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John S 11 years ago

I know, Mike, but I have a problem remembering to add the emoticons as well as which one I should use. Sorry about that, too.

How about a bald head and sad? (:(

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Reinhardt Behm 11 years ago

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And I understood it that way. The part about insults referred to other discussions in this group.

Reinhardt

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Reinhardt Behm 11 years ago

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That looks very, very sad. It even made your nose disappear ;-)

Reinhardt

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rickman 11 years ago

Maybe you should add an emoticon to *every* post. A serious post could be >:|

Rick

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John S 11 years ago

I guess I can't get this right (:-(

But now I have a knose (:-)

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John S 11 years ago

Man, I just don't fit in here. Sorry guys.

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John S 11 years ago

It looks evil either way I tilt my head. Was that your intention? (:-(

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rickman 11 years ago

To look serious. =|:\ This is confused while wearing a hat.

Rick

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amdx 11 years ago

It's ok, you may be a square, but our circle is big enough for you to fit in. :-) Please stay and play with us! Mikek

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2.4 GHz linear board....

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