T&L Publications

I want to give 5V-1ms pulse to a resistive load using 555 monoshot. First I am connecting 33 Ohm, then 68 Ohm and finally 100 Ohm as load. Here is my final schematics....(one using OP AMP and other using BJT). Kindly give me necessary advice on selection between the two ones that is better? Is there...

Can I get -15V by reversing the polarity of +15V single power supply, as by connecting in reverse manner, MM reads -15V ?

dacflyer wrote:my guess is its the number of pins ?

Thanks for your replay.....I got its solution. Here I would like to share with you...

For M24308 D-type Sub mini connector, 9-PIN M24308/4-1, 78 Female M24308/2-15, 50 Female

bent M24308/23-35FL, 78 mALE M24308/4-15, 15 Female M24308/2-2, 50 Male bent M24308/24

-53F, 78 Female M24308/2-15, etc...

What does the last digits after slash sign means ?

I got its schematic....But can't get the idea....




[img=http://s11.postimage.org/m6uqcwwrj/RELAY.jpg]

Can anybody explain the in/out signal flow of EL 215 147A F7098(M302 J2A HM-10) Relay on

coil excitation ?
I cannot find these relays on Google.

In the figure shown below, SWR Meter is using in two different scenarios. First one for SWR measurement and second one for dB measurement. In SWR meter, same needle rolls on two scales simultaneously. There is no any front panel controls to switch between dB and SWR scales. Then how can I confirm th...

How can I experimentally identify between SI/GI Fibers ?

In the Microwave Testbench shown, I am replacing VSWR Meter with another CRO. Then, What would be the waveforms on two CROs ? According to my prediction: CRO at Detector Mount will indicate SQUARE WAVES( AM modulation set on MW source supply) CRO at slotted line will indicate STANDING SINE WAVES tra...

In short , when DIP occurs
MOD Frequency= DIP Frequency
Is it correct ?

I have setup one Microwave testbench as shown in figure. Modulation (MOD) frequency knob of Microwave source is been set at mid position. Now the Frequency Meter reads a DIP Frequency of 9.34 GHz. From Reflex Klystron MODE Study it is evident that- for all maximum output power points, the DIP value ...

How can I visually discriminate between E-plane & H-plane tees/bends ?



How can I draw E/H vectors around axis of bends/tees by considering
horizontal/vertical polarizations ?

[img]

http://s3.postimage.org/1a22ll29w/microwave.jpg[/img]

I am using the following steps to measure Low VSWR, 1. Move the probe along the slotted line to get maximum deflection in VSWR meter. 2. Adjust the VSWR meter gain control knob or variable attenuator until the meter indicates 1.0 on normal VSWR scale. 3. Keep all the control knob as it is move the p...

why C/N is referred for satellite communication instead of S/N ?

two compatible MM SI fibers joined with small air gap.
If joint loss is 0.47dB , how can I find refractive index of perfectly aligned fiber ?