Re: VE3EFJ third mixer mod for the R4C
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Thank you, Paul, for the extended explanation.
Bob K9JU
On Wednesday, January 1, 2025 at 04:28:46 PM EST, Paul Christensen via groups.io <w9ac@...> wrote:
>Another change is to the Zobel network resistance. This network is the series R/C circuit between the output of the amplifier and circuit common (ground). It provides a resistive load for >stability of the amplifier at higher frequencies when encountering inductive loads (e.g., the speaker and the speaker leads). ? The network also helps to stabilize the amplifier from oscillating when switching loads between speaker and headphones -- especially if there¡¯s an open circuit condition at any moment between switching the loads.? ? Paul, W9AC
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