Valve Audio Design Literature
Some books on the older but still relevant technology can be found here.
Please feel free to browse through the compact but useful library below:
WesternElectric_1956_ElectronTubes
WesternElectric_1933_VacuumTubes
TelefunkenRöhren_1930-31TaylorTubes
Reich_1944_Theory_and_Application
Reich_1941_PrinciplesOfElectronTubes
RCA_1962_ReceivingTubeManual_RC13_2
RCA_1962_ReceivingTubeManual_RC13
RCA_1944_Radiotron_Designer_Handbook
RCA_1940_ReceivingTubeManual_RC14
RCA_1938_TransmittingTubesManual_TT3
RCA_1938_BeamPowerTubes_TechPapers
Philco_WiringDiagrams_PartsBook
Mullard_ValvesAndElectronTubes
LauerBrown_1928_RadioEngineeringPrinciples
Hoag_1942_EssentialsOfElectronTubesAndCircuits
GE_Tubes_essential_characteristics
Emmons_1950_Electron_Tube_Circuits
ElectronicAmplifiers_TheoryAndDesign
Electronic_tube_theory_and_Circuits_ FM_11-63
arrl_1937_RadioAmateursHandbook
ArmyNavy_1952_theoryAndApplicationElectronTubes