VLF Projects
136 kHz Projects
472 kHz Projects
500 kHz Projects
Multiband HF Projects
160m Projects
80m Projects
60m Projects
40m Projects
30m Projects
20m Projects
17m Projects
15m Projects
12m Projects
10m Projects
6m Projects
4m Projects
VHF Airband
2m Projects
70cm Projects
23cm Projects
13cm Projects
9cm Projects
6cm Projects
3cm Projects
1,25cm Projects
EHF Projects
Antenna Matches
Shack Accessories
Power Supplies
Test Equipment
µController Arduino
Tubes
Transistors 2N-Serie
Transistors BC-Serie
Transistors BD-Serie
Transistors BF-Serie
IC 74XX-Serie
IC 74LSXX-Serie
IC 74SXX-Serie
IC LM-Serie
IC TDA-Serie
visitors
visitors online
All contents Articles Downloads Links News Photos Planner [nl] and [en] [nl] only [en] only Search
Datasheet SN7400 Texas Instrumentshttp://www.ti.com/lit/ds/symlink/sn74ls00.pdf
7400 SirenTwo NAND gates are used for the oscillator, and two as the control. If the two-tone speed needs to be altered, the 220 µ capacitors can be changed Oarger for slower operation).http://www.next.gr/inside-circuits/7400-siren-l8833.html
Crystal Activity Tester CircuitThis circuit will check a crystal for activity. Two sections of a 7400 act as an oscillator and its output is rectified and drives an npn transistor that switches an LED (Fig. A).http://www.next.gr/inside-circuits/crystal-activity-tester-circuit-l11176.html
Wide-Range Crystal Oscillator CircuitA circuit using one 7400 TTL10 can use crystals of the fundamental type, from 1 to about 13 MHz. Output is rich in harmonics.http://www.next.gr/inside-circuits/wide-range-crystal-oscillator-circuit-l11179.html
Creation date : 03/12/2012 @ 00:08 Last update : 08/12/2012 @ 21:27 Category : IC 74XX-Serie Page read 18734 times
Print the article
Document generated in 0.07 second
VLF Projects
visitors
Print the article
Top 
© 2004-2013 
© 2004-2013