Type 2N107 Transistor Circuits for Experimenters Amateurs
Amateur Radio by F. G. Rayer
Diodes and Transistors - General Principles (1963)
Philips - Il Transistor Teoria e Applicazioni 1966
The Lambda Diode - A Negative Resistance Device
National Semiconductor LM381 datasheets
National Semiconductor LM137/LM337 datasheets
Radio Electronics December 1963
Motorola MC1458 datasheet
Texas Instruments TLE2426 datasheet
Texas Instruments TPS3514 datasheet
ST TDA7297 specsheet
National Semiconductor LM4871 spec sheet
MX-Com MX224 datasheet
Philips NE531 datasheet
Texas Instruments TLE2425 datasheet
Texas Instruments TL431A datasheet
Texas Instrument LM336-25 datasheet
Fairchild uA78S40 datasheet
National Semiconductor LM334 datasheet