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Old 20th Apr 2021, 6:58 pm   #20
buggies
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Join Date: Jan 2009
Location: West Lothian, UK.
Posts: 760
Default Re: Buffer Amplifier for Digital Frequency Counter

Quote:
Originally Posted by ortek_service View Post
I wonder if anyone's tried simulating the circuit in the free LTspice ?
- Or maybe the Micro-Cap Simulator software (made available free > 1yr ago for apparently a limited time, but still there), as mentioned recently here: https://www.vintage-radio.net/forum/...56#post1364956 (Where this Preamp circuit also appears)
Well - yes, but - it is the first time I have tried Microcap and have never used LTspice in anger - so have attached what I get as a screendump along with the file for someone more sim-skilled to play with...
The three charts are from the source, the first collector and the output.

(Had to zip the .cir file as not an accepted upload format.)
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File Type: zip bufferamp.zip (6.8 KB, 143 views)
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