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|    sci.electronics.basics    |    Elementary questions about electronics    |    72,318 messages    |
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|    Message 71,443 of 72,318    |
|    riccardo manfrin to All    |
|    Re: Colpitts oscillator    |
|    05 Oct 19 14:26:17    |
      From: riccardomanfrin@gmail.com              Thanks for all your help guys.       I've managed to see the oscillation by looping the probe with ground. Than I       tried again probing at the collector, this time with 10x instead of 1x, and I       managed to see the 80mV 10MHz waveform.              At that point I wanted to linearly amplify with a simple single stage common       emitter bjt, but had no success.              I think the biasing was correct.. I was in the linear zone, but I have the       doubt if the input to output impedance ratio between the two stages (the osc       and the linear amp) is killing the waveform input signal at the base of the       bjt...              Can you give me some piece of advice?I'll be posting the biasing of the linear       bjt amp when I'll be in front of the breadboard              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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