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Category: Inside Circuits Views: 4751 Rank: 1 This circuit mixer has an internal amplification with 2N3563 transistor. The two input signals can be independently controlled by VRI and VR2. The VR3 balance control is used to remove a signal while the other melted.  The transistor provides gain and level of combined output signal is controlled by VR4. Datasheet file1: Click here to download 2N3563.pdf datasheet.
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Simple active virtual earth mixer for Lunetta
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