Gelder, Erich.
Circuits with semiconductor components / by Eric Gelder and Walter Hirschmann. - Berlin : Siemens Aktiengesellschaft, c1969. - 3 vols.
v.2 : Designs of low-frequency and high-frequency circuits ; v.3 : Designs with Germanium and silicon-transistors.
Electric circuits.
Circuits with semiconductor components / by Eric Gelder and Walter Hirschmann. - Berlin : Siemens Aktiengesellschaft, c1969. - 3 vols.
v.2 : Designs of low-frequency and high-frequency circuits ; v.3 : Designs with Germanium and silicon-transistors.
Electric circuits.