Monthly Archives: February 2014

Building the library

I’ve heard of the above two books for many years but for some reason never bought them until now.  They’re fairly pricey on Amazon and if “Solid State Design for the Radio Amateur” is any guide, the price may just … Continue reading

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Soldering hiatus (brief, hopefully)

I’m not sure who all follows my blog, but just letting you know that I won’t be posting much till later this week.  I’m not gone and certainly haven’t given up on the Bitx20 or other projects.  I’m just overwhelmed … Continue reading

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Breadboarded mic amps

I took my higher gain mic amp design and breadboarded it, then looked at it on the scope.  Everything worked just about as predicted!  I was amazed. I obtained about 1.25 V p-p from my circuit, which is a gain … Continue reading

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Rc/Re and voltage gain

My mind was restless last night, so I ended up doing some more calculations on this amplifier before going to sleep. It was bugging me to no end that I didn’t quite understand where the voltage gain was coming from.  … Continue reading

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BJT audio amp design learning milestones

Long time no post!  I want to post more regularly but I just haven’t had time to devote to the hobby these past two weeks.  But I’ve finally made some new headway so it’s time to blog. My work on … Continue reading

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Observations on textbooks

I haven’t had time to devote to amplifier fun this week (although I have devoted some thought to it, and believe I have a much better understanding now for component selection — will blog on that when I get a … Continue reading

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Radio Shack to close 500 stores?

I just heard about this in the evening news.  A link to the story (Wall Street Journal). What a bummer!  I just shopped there a few days ago.  I’m almost certain they’ll close the one close to me, and maybe … Continue reading

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