Suppressor-Grid Modulation

Author: J.B. Hoag

Fig. 28 E. A suppressor-grid modulation circuit. Condenser C should not be greater than 0.002 μfd.

Figure 28 E shows the complete circuit of a system which operates along the same lines as that of the grid-bias modulator, but is somewhat simpler to adjust for proper operation because the modulating, the r.f., and the plate circuits are all three separate and more or less independent of each other.