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Kerry D. Wong

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Category: Teardowns

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Teardown of a Cel-Fi Go X Cell Signal Booster

July 5, 2020July 7, 2021 kwong9 Comments on Teardown of a Cel-Fi Go X Cell Signal Booster

In the area where I live, the cell phone reception is spotty at the best. Even though I am only […]

Product Reviews, Teardowns ASIC, Cel-Fi, Downlink, Echo Cancellation, ETSI, FCC, Go X, IP66, Jitter, LNA, LPDA, Matched Filter, Multi-Path Fading, NEMA 4, Nextivity, PCI, Repeater, RSRP, RSRQ, RSSI, Signal Booster, SINR, Teardown, Uplink, Yagi

Teardown of a Keithley 230 Programmable Four-Quadrant Voltage Source

October 25, 2019October 25, 2019 kwong6 Comments on Teardown of a Keithley 230 Programmable Four-Quadrant Voltage Source

The latest addition to my lab equipment is a Keithley 230 programmable voltage source which can output up to ±100V. […]

Electronics, Teardowns AD544, GPIB, HP-IB, IEEE-488, Keithley 196, Keithley 230, MJ15011, MJ15012, Teardown, TMS9114A, Voltage Source

Teardown of a Marconi 2305 Modulation Meter

May 26, 2019June 2, 2019 kwong3 Comments on Teardown of a Marconi 2305 Modulation Meter

I picked up a Marconi 2305 modulation meter off eBay the other day. As the name indicated, a modulation meter […]

Teardowns AM, EAROM, ER3400, FM, Harmonic Mixer, M5L8155P, Marconi 2305, Modulation Meter, PM, Step Recovery Diode, upd446C

Teardown of an Array 3711A 300W DC Electronic Load

November 5, 2018 kwong2 Comments on Teardown of an Array 3711A 300W DC Electronic Load

I have made many electronic loads in the past. For instance this simple harddrive cooler housed small dummy load, this […]

Electronics, Teardowns 93LC66, Array 3711A, DC Load, Dummy Load, EEPROM, Electronic Load, IRF3205, IRFP460, MSP430F135, OP07, Programmable Load

Agilent U1731B LCR Meter Teardown

October 28, 2018 kwong1 Comment on Agilent U1731B LCR Meter Teardown

A couple of weeks ago, I got myself an Agilent U1731B LCR meter on eBay. These handheld LCR meters are […]

Electronics, Teardowns Agilent, Dissipation Factor, ESR, Guarding, HT7600, LCR Meter, Parallel, Quality Factor, Series, Teardown, TLC7135C, U1731B

Extreme Teardown of a Panasonic PT-L780U 3LCD Projector

September 9, 2018 kwongLeave a Comment on Extreme Teardown of a Panasonic PT-L780U 3LCD Projector

Have you ever wondered what is inside of a 15 year old commercial color projector? Well we will find out […]

Electronics, Teardowns 3LCD, AD9888, CPLD, Dichroic, DSP, FPGA, Fresnel Lens, Panasonic, Prism, Projector, PT-L780U, Teardown

Teardown of an MEDA PLM-100 AC Magnetometer

August 11, 2018 kwongLeave a Comment on Teardown of an MEDA PLM-100 AC Magnetometer

I did a teardown a while ago on a cheap eBay electromagnetic radiation detector, and if you recall the performance […]

Electronics, Teardowns AD636, burden voltage, Electromagnetic compatibility, EMC, fluxgate, Macintyre Electronic Design Associates, Magnetometer, Meda, Op Amp, Search Coil, TL032, Transimpedance Amplifier, True RMS

Inside a Datum 9300 Time Code Generator

July 30, 2018 kwong1 Comment on Inside a Datum 9300 Time Code Generator

IRIG time code generators (not to be confused with the ones used in video and film industry) are often used […]

Electronics, Teardowns BCD, IRIG Timecode, Manchester Code, SBS, Time Code, wire wrap

Teardown of a GM3120 Electromagnetic Radiation Tester

May 20, 2018May 20, 2018 kwong2 Comments on Teardown of a GM3120 Electromagnetic Radiation Tester

There are a lot of cheap electromagnetic radiation testers out there which boast some quite impressive claims. So I decided […]

Product Reviews, Teardowns 27M2C, 2C3356, 8052, Electromagnetic, Electromagnetic Radiation Tester, Field Strength Meter, GM3120, HT1621, WT56F216

Teardown of an EcoSmart 60W Dimmable G16.5 LED Bulb

April 9, 2018 kwongLeave a Comment on Teardown of an EcoSmart 60W Dimmable G16.5 LED Bulb

Although LED light bulbs have been around for a while, I have not been able to totally replace all my […]

Electronics, Teardowns AL1696, Dimmable, EcoSmart, LED Bulb, Power Factor, Teardown

HP 8620C Sweep Generator Repaired

March 1, 2018 kwong6 Comments on HP 8620C Sweep Generator Repaired

In my previous post, I did a teardown of an HP 8620C sweep generator along with an HP 86245A 5.9 […]

Electronics, Teardowns HP 8620C, HP 86245A, Repair

Capacitor Plague? Inside an HP 8620C Sweep Oscillator and HP 86245A RF Plugin

February 19, 2018February 19, 2018 kwong19 Comments on Capacitor Plague? Inside an HP 8620C Sweep Oscillator and HP 86245A RF Plugin

I just picked up an HP 8620C sweep oscillator with an HP 86245A 5.9 GHz to 12.4 GHz RF plugin […]

Electronics, Teardowns 1821-0001, 1826-0785, 1826-1349, CA3026, Capacitor Plague, GaAs, HP 8620C, HP 86245A, MC34002, OP02, RF Amplifier, Sweep Oscillator, YIG

Teardown of an HP 8671A Microwave Frequency Synthesizer

February 2, 2018February 24, 2018 kwong1 Comment on Teardown of an HP 8671A Microwave Frequency Synthesizer

I recently bought an HP 8671A microwave frequency synthesizer on eBay. This synthesizer can generate signals from 2GHz to 6.2GHz […]

Electronics, Teardowns 74LS298, HP 8566B, HP 8671A, HP 8671B, HP 8672A, Microwave, Ovenized Crystal Oscillator, PLL, Synthesizer, Teardown, Wavetek 395, YIG, YTO

Further Disassembly of the HP 493A TWT

February 1, 2018 kwongLeave a Comment on Further Disassembly of the HP 493A TWT

My video on the teardown of an HP 493A traveling wave tube amplifier had generated quite a bit of interest. […]

Electronics, Teardowns HP 493A, Teardown, Traveling-wave tube, TWT, TWTA, Watkins-Johnson, WJ-3502-1

The Traveling Wave Tube inside HP 493A is Radioactive

January 18, 2018 kwong3 Comments on The Traveling Wave Tube inside HP 493A is Radioactive

In my previous video featured on EEVBlog I did a teardown of an HP 493A microwave amplifier along with the […]

Teardowns 8068, Cathode, Electron Gun, HP 493A, Pentode, Radioactive, TWT, Uranium Oxide

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