Login: GUEST @ JH4XSY.14.JNET1.JPN.AS [Tsuchiura]
home | newest check | boards | help index | log | ps | userlogin | send sysop | slog | status forward | bcm news | users | version | remove cookieG8MNY > TECH 08.02.26 18:11l 89 Lines 2444 Bytes #7 (0) @ WW BID : 51667_GB7CIP Subj: Homebrew Testgear Path: JH4XSY<N3HYM<GB7YEW<GB7CIP Sent: 260208/0910Z @:GB7CIP.#32.GBR.EURO #:51667 [Caterham Surrey GBR] From: G8MNY@GB7CIP.#32.GBR.EURO To : TECH@WW By G8MNY (Updated Dec 19) (8 Bit ASCII graphics use code page 437 or 850, Terminal Font) At a recent club meeting I showed off some of my large range of homebrew testgear I have built & collected over the years. Not all constructed & designed from scratch by me, but all got working properly & improved by me. AF A 2 Tone AF Test Osc Design A Simple Telephone Tester AF Noise Generator (White, Pink, & Red) AF test amp AF Wayne bridge Osc AF Waveform Generator (20Hz-20kHz Sin/Sq/Tri) Distortion Meter (1kHz) 8R 200W Dummy Loads (water jars with 2x 15Rs) Simple AF Test Osc (1KHz Sin/Sq/Tri) RF A Homebrew HF SWR Bridge A Homebrew UHF SWR Bridge A Versatile Pulse Tester & Pot load Absorption Wavemeter 100-300MHz Clip on QRM ferrite Probe DDS Osc 1Hz-50MHz PIC Dip Oscillator 470KHz-250MHz Freq Counter 0-200 & 430MHz Freq Counter 0-50MHz PIC PEP Meter modification Piston Absorption Wavemeter 70-1000MHz QRO 1kW HF Meter Dummy Load & Sniff QRO Dummy Loads DC-23cms QRP Power Meter & Dummy Load QRP SWR Bridge RF Directional Coupler (-40dB sniff @ 100MHz) RF Noise Bridge for LF, MF, & HF Spectrum Analyser Adaptor DC-80MHz (1989) Spectrum Analyser Adaptor VHF-UHF VHF Test Osc 144MHz AM/FM 1kHz mod MAINS LED as a mains NEON Mains Isolation Transformer (200W) Mains Peak/RMS/Mean Meter Mains Plugtop Filter Adaptor Mains Power protector Maplin 13A Socket Mains Tester Maplin Mains Meter 2000MU-UK Variac 0-260V 200W MEASURMENT 198kHz Off Air Standard (1, 10, 100kHz, 1, 5 & 10MHz) Car Dwell Angle & RPM Meter Component Tester LCR/ESR/Semiconductor PIC project Kelvin Varley Voltage Divider Meter Damping & Speed Up (general improvements) Reaction Timer (just a ruler) Scope & DMM Calibrator DC & 1kHz Square wave 1mV-10V p-p OTHER Capacitance Subs Box 100pF-1.9uF High Voltage Probe (from a pen) Lab Breadboard (PSUs, BB, Osc, DVM & LS amp) Lab 0-35V 0-10A PSU was a "CS FL-305" Simple PIV Test Circuit (1kV AC) Resistance Subs wheel (10R-1M 24 values) TOOLS LED Test Screwdriver Logic Probe Soldering Iron Economiser/Boost Thermostatic Soldering Iron LED Voltage Indicator Screwdriver (LCD 12 50 110 240V) TV Cropeady test card Generator PAL test waveform Gen (crosshatch, circles, ASC gains etc.) 75R Colour Impedance Bridge N.B. not all of these I have written Packet Tech Buls about. Why Don't U send an interesting bul? 73 de John G8MNY @ GB7CIP
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