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TECHNICAL PUBLICATION/DOCUMENTATION

Technical articles are published for the benefit our customers and are supportive educational material. These have all been listed, in order of publication date and can br ordered from us. The cost is Rs 1100 plus GST plus shipping.


Period When Published Subject of Publication Publication No./Title
1969 to 1971
  1. Oscilloscope 10 MHz
  2. DC to DC converter
  • Pub No. BB-01/69: An explanation of CRO controls for the audio enthusiast
  • Pub No BB-01/70: Understanding AC-DC-Gnd switch in CRO’s
  • Pub No BB-01/71: DC Coupled vs AC Coupled VROs
  • Pub No BB-2/71: Triggered vs Free running Sweep Sweep
  • Pub No BB-01/73: Turn on/off time of Transistor vs efficiency of DC-DC converter: Ge vs Si: Freewheeling Diode
1971 to 1973
  1. Earth Motion Recorder
  2. Chart Stepper
  3. Time Code Generator
  • Pub No BB-03/71: A note on LVDT’s-the displacement sensors
  • Pub No BB-01/72: Range Problem with Cambridge Recorders & Solution
  • Pub No BB-02/73: Time Code Extraction from Wireless Signals
  • Pub No BB-03/73: Use of TTL MSI’s in digital decoding
1972 to 1975
  1. Analog Computer
  • Pub No BB-02/72: Educational vs Professional Computer
  • Pub No BB-04/73: A note on demands placed by Analog Computation on Chopper Stabiiized amplifier
  • Pub No BB-05/73: Drift reduction methods in Integrators: PCB/Capacitor/Amplifier
  • Pub No BB-01/74: Discrete Vs Integrated Amplifiers for Analog Computation
  • Pub No BB-02/74:An explanatory note on Repetitive Operation
  • Pub No BB-03/74: About Analog Memory Pair
  • Pub No BB-01/75: Non linear function generation based on biased diode arrays
  • Pub No BB-02/75: Function simulation using variable break points and slopes of biased diodes
  • Pub No BB-03/75:Mathematical function simulation by diodes.
  • Pub No BB-04/75:Diode based vs Integrated Analog Multipliers
  • Pub No BB-05/75: Connecting Analog Computer to a PDP system: a possibility?
  • Pub No BB-06/75: Solution of a split value boundary differential equation using analog computer
1973 to 75
  1. Transfer Function Analyser
  • Pub No BB-06/73: Importance of Transfer Function Analysis & its impact on Instrument specifications
  • Pub No BB-07/73: Using Romtek Transfer Function Analyser for Bode Plots
  • Pub No BB-04/74: Using Romtek Variable Phase VLF generator for Phase measurement
  • Pub No BB-05/74: Measurement of Gain & Phase Margins from Bode Plots.
  • Pub No BB-07/75: Comparison of Hi Persistance CRT’s & Storage CRT’s
  • Pub No BB-08/75: technique used by Romtek to obtain linear phase variation from 0 deg to 360 deg, over 0.001 Hz to 100 KHz.
  • Pub No BB-09/75 Use of Romtek TFA for Transient Analysis of servo mechanisms.
1974 to 1980
  1. Digital Multimeters 3-1/2 digits and 4-1/2 digits
  • Pub No BB-05/74: A note on Dual Slope Integration Technique for A-D Conversion
  • Pub No BB-10/75: Experimental comparison of DMM and AVO meter wrt to circuit loading effects in Voltage and Current measurement
  • Pub No BB-11/75: Understanding Accuracy, Resolution and errors of different types.
  • Pub No BB-01/76: Measurement of linearity of AC-DC conversion in DMM’s and AVO’s
  • Pub No BB-01/77: Understanding Scale Linearity in Resistance measurement by DMM and AVO.
  • Pub No BB-01/78: Why 4-1/2 Digits-Know by measurement of DC Supply Regulation using 3-1/2 and 4-1/2 Digital Voltmeter
  • Pub No BB-01/80: Frequency response studies of ac measuring devices (50 Hz to 5 KHz)
1977 to 1992
  1. Laser Range Finder
  • Pub No BB-01/90: Understanding Joint Service Specifications JSS 55555
1990 to 1993
  1. Thermal Imager Electronics
  • Pub No BB-01/92: On shielding, guarding & grounding in PCB design in mixed signal circuitry
  • Pub No BB-01/93: On problems caused by and avoidance of surface leakages on PCB’s
1975 to 1985
  1. Power Supply Protectors
  • Pub No BB-01/79: Power supply self protection techniques
  • Pub No BB-02/80: Power Supply Load protection Techniques
  • Pub No BB-01/82: Power Supply protection from transients
  • Pub No BB-01/85: Using Thyristor Crow Bars.
1975 to 1985
  1. High Voltage Power Supplies
  • Pub No BB-03/80: High Voltage problems in transformers and indigenous solutions
  • Pub No BB-01/83: High voltage Capacitors: sourcing, mounting, shielding, discharging
  • Pub No BB-02/85: Safety concerns in High Voltage power supplies
  • Pub No BB-03/85: Floating Regulators-Principle of working.
1985-1990
    Laboratory Courseware (experiment set up, hardware, instruments with instructional material) for Diploma Course in Electronics Engg covering:
  1. Network Theorems
  2. Device Characteristics
  3. Power Electronics
  4. Power Supplies
  5. Osc. & Multivibrators
  6. Amplifier Circuits
  7. Waveform generators
  8. Digital circuits
  9. Operational Amps
  10. Filter Circuits
  • Pub No BB-01/87: An excel program to generate 3 terminal device characteristics
  • Pub No BB-01/88: A note on Oscillators
  • Pub No BB-01/89: A note on Amplifiers
  • Pub No BB-02/90: A note on Power Supplies
1980 to 1995
    Laboratory Courseware in Digital Techniques
  1. Logic Trainer
  2. Logic Troubleshooting Kit( Probe, Pulser, Clip and Comparator)
  3. Breadboarding Logic Lab
  4. Microprocessor Evaluation & Protyotyping Boards
  • Pub No BB-01/91: Logic Probe & Pulser as debugging tools
  • Pub No BB-02/92: Logic comparator for in circuit troubleshooting
  • Pub No BB-02/93: Outline of Lab course in Digital Techniques for Diploma Courses in Delhi, Haryana, UP
  • Pub No BB-01/94: Outline of Lab course in Digital Techniques for JE’s in DOT
1973 to 1998
  1. IC Testers:
  2. Digital IC Tester
  3. Linear IC Tester
  4. Automatic Digital IC Tester
  • Pub No BB-12/75: Principles of Automatic Digital IC testing
  • Pub No BB-03/93:Parameters under lens in Linear IC testing.
  • Pub No BB-01/98: Experiments on IC’s using IC Tester
1980 to 2000
  1. LINEAR SYSTEM LAB
  • Pub No BB-02/87: Plotting Frequency/Phase response of Operational Amplifier as Inverter, Non inverter and as Summer for different gains: Measure Gain x BW product
  • Pub No BB-02/91: Measurement of Input Resistance of Operational Amplifier as Inverter, Non inverter and as Summer for different gains
  • Pub No BB-04/93: Measurement of Output Resistance of Operational Amplifier as Inverter, Non inverter and as Summer for different gains
  • Pub No BB-02/94: Configurations of Op Amps for Integration, Differentiation, Comparison, Log & Anti log and AC to DC conversion,
  • Pub No BB-01/95: Measurement of Open Loop Gain of Op Amp
  • Pub No BB-02/95: Measurement of CMRR and PSRR of Op Amp
  • Pub No BB-01/96: Determination of accuracy as a function of operational resistance
  • Pub No BB-02/96: Measurement of Capture Range, Lock In Range and Pull in Time for integrated PLL
  • Pub No BB-03/96: Transient response of PLL and the role of filter parameters in the control loop.
  • Pub No BB-01/97:Building a PLL from discrete Op Amps
  • Pub No BB-02/97: Understanding Voltage Regulator IC’s
  • Pub No BB-03/97: 555 Applications
  • Pub No BB-02/98: Lay out Precautions with wide band amplifiers.
  • Pub No BB-03/98:Lay out precautions with super high speed comparator NE 529
  • Pub No BB-01/99: PCB precautions in Linear Circuit Designs.
  • Pub No BB-02/99: Understanding Op Amp Data Sheets
  • Pub No BB-03/99: Using PLL for FM demodulation
  • Pub No BB-01/00: Using a 3 terminal regulator as floating regulator.
  • Pub No BB-02/00: Using Comparator, Op Amp and diode switch for function generation
  • Pub No BB-03/00: Use of analog switch as multiplexer.
1980 to 2000
  1. Instrumentation & Process Control Courseware (experiment set up, hardware, instruments with instructional material) for Bachelor's Course in Electronics Engg Covering:
  • Pub No BB-01/81: An overview of Strain Gauges.
  • Pub No BB-02/83: An overview of Temperature sensors
  • Pub No BB-01/84: An overview of Pressure Sensors
  • Pub No BB-03/87: An overview of Optical Sensors
  • Pub No BB-05/93: An overview of Linear displacement Sensors
  • Pub No BB-06/93: An overview of Rotary displacement Sensors
  • Pub No BB-04/98: An overview of Linear displacement Sensors
  • Pub No BB-05/98: An overview of Misc Sensors-moisture, piezo, fibre optic, integrated, flow metric, et all.
  • Pub No BB-04/00: An overview of Sensor Signal Conditioning Circuits
  • Pub No BB-05/00: Feedback systems in real life
  • Pub No BB-06/00: Control actions-on/off, proportional, integrating, derivative in real life
1978 to 1995
  1. Digital & Microprocessor Courseware (experiment set up, hardware, instruments with instructional material) for Bachelor's Course in Electronics Engg
  • Pub No BB-02/79: A course in Digital Techniques for Junior Engineers ( DOT-Electronic Exchanges)
  • Pub No BB-04/80: A course in Digital Electronics for Diploma Course in Delhi
  • Pub No BB-02/84: Technical Note on debugging Digital Circuits without removing IC’s from PCB
  • Pub No BB-07/93: An over view of Microprocessors
1984 to 2010
  1. Communication Engg Courseware (experiment set up, hardware, instruments with instructional material) for Bachelor's Course in Electronics Engg
  • Pub No BB-03/84: A short look at constitution of a“signal”
  • Pub No BB-04/84: The concept of “modulation”
  • Pub No BB-04/85: Comparison of AM & FM wrt SNR
  • Pub No BB-01/03: Comparison of Analog & Digital Modulations
  • Pub No BB-01/04: The concept of Multiplexing & Demultiplexing
  • Pub No BB-02/04: An overview of “Filters”
  • Pub No BB-01/08: Digital Modulation schemes at a glance
2005 to 2019
  1. Fibre Optics Communication Engg Courseware (experiment set up, hardware, instruments with instructional material) for Bachelor's Course in Electronics Engg
  • Pub No BB-01/12 : Opical Fibres applications as sensors
  • Pub No BB-01/13 : Optical Fibre Tools
1995 to 2000
  1. Radio/TV Communication Engg Courseware (experiment set up, hardware, instruments with instructional material) for Bachelor's Course in Electronics Engg
  • Pub No BB-03/95 : Standards for Performance of Color TV Receivers
  • Pub No BB-04/95 : Standards for Performance of Monochrome TV Receivers
1985 to 2002
  1. Microwaves Communication Engg Courseware (experiment set up, hardware, instruments with instructional material) for Bachelor's Course in Electronics Engg
  • Pub No BB-07/00: History of microwave tubes
  • Pub No BB-08/00 : A Note on solid state microwave devices
  • Pub No BB-01/01 : Wave Guides for various Bands
  • Pub No BB-01/02 Laws of Optics with microwaves
  • Pub No BB-02/02: Data Sheets of Devices Used by Romtek
2004 to 2013
  1. Physics (experiment set ups, hardware, instruments with instructional material) for Bachelor's Course in Engg, with Physics as common subject
  • Pub No BB-01/06 : History of Superconductivity
  • Pub No BB-01/09 : A Note on Tunnel Diodes
  • Pub No BB-01/11 : Experiments developed by Inter University Accelerator Centre
  • Pub No BB-02/13 : Feynman Quotes: A compilation
1990 to 2005
  1. Control Systems Lab(experiment set ups, hardware, instruments with instructional material) for Bachelor's Course in Control Systems Engg
  • Pub No BB-03/90 :A short Intro to Supervisory Control systems
  • Pub No BB-02/03 : Glossary of Control System Terms
  • Pub No BB-03/03 : A note on Compensation Design
  • Pub No BB-04/03 : References for Reading abt Control Systems
  • Pub No BB-05/03 :Control System Trade Offs
2006 to 2014
  1. Electrical Machines Lab(experiment set ups, hardware, instruments with instructional material) for Bachelor's Course in Electrical Engg
  • Pub No BB-02/11 :An overview of electrical machines
  • Pub No BB-02/12 : An overview of Protection Devices
  • Pub No BB-03/13 : Common Instruments for Electricians
  • Pub No BB-04/13: An overview of Motor starters
  • Pub No BB-01/14 :Transformer Stampings Data
  • Pub No BB-02/14: Wire Guage Data
2007 to 2012
  1. Electrical House Wiring Lab(experiment set ups, hardware, instruments with instructional material) for Bachelor's Course in Electrical Engg
  • Pub No BB-03/12: A Brief on Safety Requirements
  • Pub No BB-04/12 :Common Household Alarms
  • Pub No BB-05/12: House hold Wireman’s Tool Kit