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CCS Conceptual Qs, Using Gary Pimm CCS as Example

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EC8010

EC8010

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Joined 2003
SY said:
One technique sometimes used to get around the CS limitations is to direct couple to a cathode follower, then take the signal from there (a low impedance source).
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That can be quite a useful technique if you're a bit short on HT voltage. A cascode using PNP transistors makes a decent anode load, and for a given HT voltage has far more compliance than the equivalent (valve) section of a mu-follower. The DC coupled cathode follower after it only need a simple CCS.
 
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