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Re: negative feedback in Cathode follower amplifier output stages [message #26198 is a reply to message #26197]

Sun, 19 September 2004 01:26

Roy G Biv
Messages: 1
Registered: May 2009

Esquire

Yep, you're right. The cathode resistor sets DC levels but also provides negative feedback of the AC signal. A bypass capacitor removes negative feedback while retaining the DC stability offered by the cathode resistor. The same thing goes for the emitter resistor in a transistor amp. Unbypassed (or partially bypassed) cathode/emitter resistors provide local feedback in a single gain stage.

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[Message index]

		negative feedback in Cathode follower amplifier output stages By: Manualblock on Sat, 18 September 2004 19:25
		Re: negative feedback in Cathode follower amplifier output stages By: Roy G Biv on Sun, 19 September 2004 01:26
		Roll off those lows, hold the feedback-- it is hurting my ears! By: martinleewin on Wed, 22 September 2004 20:15

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