video amplifier on page 122

Hey, making some projects from my book? Got a question about something? Wanna share what you've done? Here's the place - go for it!

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jeffslot
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video amplifier on page 122

Post by jeffslot » Tue Jun 03, 2008 7:08 pm

Hi,

I'm trying to create the video amplifier on page 122. I've haven't had much luck with video amplifier's to this point. Would you guys mind looking at mine & letting me know if it looks right? Of course I know we won't know for sure, until it's hooked up, but that might take a bit of time.

Yellow wire is video to tv
Black wire is ground/negative
White wire is Video from NES
Red Wire is +5 volts

Thanks.

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Jeff

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Mister X
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Post by Mister X » Tue Jun 03, 2008 8:37 pm

Looks like you've got a solder bridge on the transistor, can't quite tell.

Also, when soldering, heat the element with the iron, then touch the solder to the element, not the iron.
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mothatrucka
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Post by mothatrucka » Tue Jun 03, 2008 9:23 pm

Mister X wrote:Looks like you've got a solder bridge on the transistor, can't quite tell.
Looks like it to me, too. Jeff, can you take your multi-meter and see if it's actually bridging those contacts? It's pretty hard to tell for sure looking at the picture.
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Post by jeffslot » Wed Jun 04, 2008 6:51 am

Hi guys,

I Think I see what you mean. Are you talking about the spot near letter 'N'? If so I will desolder & attempt to do it better tonight. Thanks.

jeff

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mothatrucka
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Post by mothatrucka » Wed Jun 04, 2008 9:12 am

Yeah, right by the "N". Should clean up okay. Let us know how it goes.
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Post by jeffslot » Wed Jun 04, 2008 6:16 pm

Hi,

I did a quick de/resolder. I hope it is better. I won't get to test it out until this weekend though.

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Jeff

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