We have a Pager that works, but no pager service is available. People have moved on to phones.
Amateur radio receivers
Features
- Incoming SMS
- Outgoing Landline
LM336-2.5 – Voltage Reference Diode
The LM136-2.5/LM236-2.5 and LM336-2.5 integrated circuits are precision 2.5V shunt regulator diodes. These monolithic IC voltage references operate as a low-temperature-coefficient 2.5V zener with 0.2 dynamic impedance. A third terminal on the LM136-2.5 allows the reference voltage and temperature coefficient to be trimmed easily.
The series is useful as precision 2.5-V low-voltage references (VZ) for digital voltmeters, power supplies, or operational-amplifier circuitry. The 2.5-V voltage reference makes it convenient to obtain a stable reference from 5-V logic supplies.
LM336-2.5 – Voltage Reference Diode
Features
- Low temperature coefficient
- Wide operating current of 400 µA to 10 mA
- 0.2 dynamic impedance
- ±1% initial tolerance available
- Guaranteed temperature stability
- Easily trimmed for minimum temperature drift
- Fast turn-on
(This was used by me in the manufacture of Indicators and Controllers and was used in place of ICL8609 as that was not in supply)
Related Resources –
ETX, modification of electronic circuit – By changing the 2,5 Volt reference diode from a fixed LM385 to an adjustable LM336 of 2,5 V, The DC motor voltage and therefore the motor speed can be adjusted.
Precision Op-Amp Current Source – In this circuit we tackle the error indicated in the earlier Current Source. The LM336-2.5V eliminates the tiny error of the regulated supply and resistors. Thereby increasing Precision to a higher degree.
