Burkhard Vogel The RIAA Phono-Amp Engine II

Two errors crept into Burkhard's Engine II article in Volume 9. Figure 13b on page 138 should be replaced by this revised figure 13b. In the Appendix on page 147, equation (22) is incorrect. The correct equation should be: r_ce = (|V_A| + |V_CE|) / I_C  (22)

With apologies to Burkhard.