Radio Theory and design

Someone asked about a circuit such as this on a radio forum. I responded "try it you may like it". The goon squad informed us i...

If you need to ID a transistor's leads you can use an ohmmeter to find the lead that shows continuity to the other two leads. Then wh...

 A short time ago DIT posted a cap divider. Let's take a short review and then consider the amp output with respect to a cap divider.  1...

Why would I use the feedback amp design? It is STABLE. (I emphasize this because someone has stated the opposite) The input and output Z ...

Using the opamp design as our basis we would expect a gain of 100 with the 1k to 100k feedback bias network and we expect 50mv out with the ...

 The last post explained how to set the gain of an opamp with the feedback resistors. Now that we know how to set the gain we will look at t...

 I will try a little experiment with design considerations and then run a sim to determine if the theory is sound.  NOTE: This is my own obs...