Transmitter for Thermocouple LM10 (CB14312E)

The components used in this National Semiconductor circuit are not common today, but the configuration can be adapted to use more modern components.

| Clique na imagem para ampliar |

Amplitude Comparator (CB22533E)
This circuit was found in a Radio Electronics of August 1952. The transistors are germanium types...
Scale Expander for Multimeters (CB3912E)
The purpose of this circuit is to add millivolt scales to a common multimeter. Used transistors are...
Car Siren (CB21353E)
Found in an English documentation, this siren of good power is indicated for several applications, based on...