Logic Probe & Pulser Model 210 & 212T/C

 These two companion instruments are ideal for digital troubleshooting in logic circuits. The probe permits use in TTL/CMOS with switch  selection.7 Segments display is used and a quasiOscilloscopic display is obtained  permitting easy  interpretation of duty cycle of a pulse train in addition to knowing logic high, logic low and open circuits.
 The logic pulser serves as a signal injection equipment. The pulser automatically senses the logic level at logic 0 or logic 1 respectively. The pulse injection is for such a short duration that no IC is damaged and the injected pulse and its effect can be seen by the associated logic probe with its single pulse capture capability.

Noise generator Model 818

 Model 818 delivers Gaussian noise band limited from 10Hz to 10KHz in adjustable amplitude from 100mV to 1Vrms. The noise generator has a built-in mixer whereby it is possible to mix a known amount of noise with a known audio signal fed in from another Audio Oscillator. A signal with known SNR is thereby obtained.

 This signal can be used with our various trainers in Communication to enable the study of  transmission of noisy signals with various modulation and coding schemes.The Noise generator is an indispensable instrument for the students of Communication Engineering.

All-in-One L,C.R,Q,Meter,Transistor Tester,Transistor Curve Tracer Model 350

 Romtek introduces an all-in-one Component Tester to take care of discrete component testing.In a single handy equipment,the tester can handle diodes ,LED's, transistors,resistances,inductances and capacitors.The equipment permits great accuracy for all your components testing.The display is digital,3 1/2 digit LED  (0.3" height).

  Inductance Measurement   : Upto 20H
  Resistance Measurement   : Upto 20MW
  Capacitance Measurement   : Upto20mF
  Diode Testing    : For forward & reverse voltage
  Zener diode testing    : Determines  Zener  voltage
  LED Testing     : Done
  Transistor Testing    : Determination of NPN/PNP type
  Transistor good/bad   : Done for PNP&NPN
  Transistor Measurement   : Gain & Leakage
  Transistor Characteristics   : Plotting on external   CRO for ALL modes i.e.
                                                 Common Base,Common Emitter &
                                                 Common Collector
  Transistor `h' parameters   : Can be done
  Measurement of `Q'    : Can be done
 
All the above facilities are available only by purchasing at least 4 different equipment.namely Transistor Tester,LCR Meter,Curve Tracer,& Diode/Zener Diode Tester.
 Our Model 350 is  a composite unit containing all the above . The equipment is covered by several D.G.S&D. contracts also.