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Author Topic: A question about a schematic  (Read 1744 times)

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Offline AsimTopic starter

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A question about a schematic
« on: September 08, 2013, 02:17:04 pm »
Hi guys, i have a silly question
can you explain the connection on the node before C11 ( what is connected to what ?)

http://www.electronics-diy.com/img/TX200.jpg

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Offline fcb

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Re: A question about a schematic
« Reply #1 on: September 08, 2013, 02:34:23 pm »
Shows a separation of the two parts, screening can basically.

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Offline AsimTopic starter

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Re: A question about a schematic
« Reply #2 on: September 08, 2013, 02:37:19 pm »
so C9 & C10 are connected to that node ? what about that short circuit to the ground ?
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Offline JuKu

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Re: A question about a schematic
« Reply #3 on: September 08, 2013, 03:27:45 pm »
As I read this, it is a connector, just like input and output. Connector shield goes to ground and is decoupled to +9 by C9 and C10, but not to C11.
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Offline fcb

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Re: A question about a schematic
« Reply #4 on: September 08, 2013, 04:31:50 pm »
You wouldn't need (or want) a connector in that position.

It's a cheap FM bug design, you would have a two part screening can (really...?) to prevent feedback/noise/etc.. from the amplifier  hitting the modulator/osc.
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