Modern SIM cards allow applications to be loaded when the SIM is in use by the subscriber. These applications communicate with the handset or a server using SIM application toolkit, which was initially specified by 3GPP in TS 11.14 (there is an identical ETSI specification with different numbering).
(Redirected from Voltage follower) A buffer amplifier (sometimes simply called a buffer) is one that provides electrical impedance transformation from one circuit to another. Two main types of buffer exist: the voltage buffer and the current buffer.
Voltage Probes. These are usually used to measure high speed, signals up to 12 Volts. These are best used to make measurements on circuit elements that have a high frequency which require the least probe loading. A probe with lower input capacity can allow higher input impedance at high frequency.