EL3B Datasheet PDF – Half Wave Rectifier Tube

Part Number : EL3B

Function : Half Wave Rectifier Tube

Package : Tube type

Manufacturers : Electrons, Incorporated


EL3B half wave rectifier tube



The filament must be lit before drawing d-c. load curret

The anode is desinged to operate at red heat when under full load.

All of the above values are for returns to the filament center tap.



EL3B datasheet pinout


Tantalum Anode and xenon GAS filling

1. Maximum Rated Anode Current

(1) D-c. Meter Value-Continouous : 2.5 amps
(2) D-c. Meter Value-Overload less then 10 sec. : 3.7 amps
(3) Averaging Time : 7 secs
(4) Oscillograph Peak – Continuously recurring : 20amps

EL3B Datasheet PDF

EL3B pdf


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74HC157 Datasheet PDF – Quad Multiplexer – Fairchild

Part Number : 74HC157

Function : Quad 2-Input Multiplexer

Package : 16 Pin SOIC, SOP, TSSOP, DIP Type

Manufacturers : ON Semiconductor, Fairchild Semiconductor

Pinouts :

74HC157 datasheet

Description :

The 74HC157 high speed Quad 2-to-1 Line data selector/Multiplexers utilizes advanced silicon-gate CMOS tech nology. It possesses the high noise immunity and low power consumption of standard CMOS integrated circuits, as well as the ability to drive 10 LS-TTL loads.

This device consists of four 2-input digital multiplexers with common select and STROBE inputs. When the STROBE input is at logical “0” the four outputs assume the values as selected from the inputs. When the STROBE input is at a logical “1” the outputs assume logical “0”.


74HC157 Truth Table


1. Typical propagation delay : 14 ns data to any output
2. Wide power supply range : 2-6V
3. Low power supply quiescent curretn : 80 uA maximum ( 74HC Series )
4. Fan-out of 10 LS-TTL loads
5. Low input current : 1 uA maximum

Other data sheets within the file : MM74HC157, MM74HC157M, MM74HC157N

74HC157 Datasheet PDF Download

74HC157 pdf