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Welcome To Sphere Research's Canadian Test Equipment & Parts Site!
Oh, Canada.... This Section Updated December 8, 2021
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LinksVery Useful Engineering Links Color codes to datasheets...
Sphere Research Coporation, CLICK to visit! Sphere Research Corporation
3394 Sunnyside Rd.
West Kelowna, BC, Canada V1Z 2V4
Phone: +1 (250) 769-1834

A great source for test equipment, repairs, calibrations, useful metrology information, and of course, SLIDE RULES!

CLICK to see Parts By the FootCLICKCLICK to SEE!
 Parts by the Foot!
Literally millions of parts available at great prices!
CLICK to visit the parts warehouse! CLICKCLICK HERE
CLICKTo Visit The Parts Section
   I'm in a HURRY! Show me all the: CLICKOscilloscopes CLICKMeters CLICKPower Supplies CLICKCounters

CLICK for current US/Canadian Gas Prices
CLICK for current US/Canadian Gas Prices

Want to know the rated gas mileage for YOUR CAR? Go to this site (www.fueleconomy.gov) for updated figures, all the way back to 1985! Uses the new rating system, so it's actually semi-realistic.
CLICK HERE for the un-skewed alternate data for M3, Inflation, etc. at ShadowStats.com. Scare Yourself.
A wide range of on-line calculator tools for every engineering discipline.

The Slide Rule Universe
Go to the Slide Rule UniverseClick to VISIT or RETURN

Hex Color Chart, CLICK for bigger PIC!
Websafe Hex Color Chart,
CLICK for bigger PIC!

Ohms Law Chart, CLICK for bigger PIC!
Ohms Law Chart
CLICK for bigger PIC!

Warning Symbol, click for a larger one!
Warning Symbol, click for a larger one!

Places to go in the Aviation World:
CLICK to visit the AEA
CLICK to visit!
The Aircraft Electronics Association (AEA)

AEA/Avionics News Articles
Walt's Finding It On The Web:
Jan/08: Test Bench Resources
Feb/08: Semiconductor Parts Info
Mar/08: Test Gear Support
Apr/08: Small Business Support

Walt's Feature Articles:
Jan/08-The World of RNP

Feb/08-The World of Night Vision, Part 1

Mar/08-The World of Night Vision, Part 2

Apr/08-Greening Your Business

September/08-Understanding Calibration, Part 1

October/08-Understanding Calibration, Part 2

2008-The User Hostile Interface (original, no PDF available at the AEA site)

Click to get walt's Oil Article
October/09-Looking at our Future: The impact of Oil on Aviation and Daily Life

CLICKGet the ORIGINAL VERSION, loaded with charts and graphs HERE

Walt's Archived Articles at Avionics Magazine, back to 1999:
Click to see!
Click to see!

Walt's Current Article at Avionics Magazine
Click to see!
Click to see!

CLICK to visit the FAA
The Federal Aviation Administration (FAA-USA)

Need a copy of AC43-13-1B? CLICK HERE!

CLICK to visit the ICAO
International Civil Aviation Organization (ICAO)

CLICK to visit the RTCA
Radio Technical Commission for Aeronautics (RTCA)

Available Standards Documents

CLICK to visit Transport Canada
Transport Canada (AIR)

Just Plain Useful Information
Visit James Howard Kunstler's Site HERE.
(author of The Long Emergency, The Geography of Nowhere)

Visit The New York Times Freakonomics Blog
CLICK to Visit.

(The Hidden Side of Everything)

Military Information
CLICK to visit DoD Assistdocs
Assistdocs.com - US Dept. of Defense

DoD Document Search

CLICK to visit
CLICK to visit!
Click for access to standards and specs!
Useful Engineering Links

Semiconductor Data Sheet Archives
CLICKDatasheet4U Archive (by number) http://www.datasheet4u.com/
CLICKDataSheet Archive (by number) http://www.datasheetarchive.com/
CLICKDataSheet Catalog (by maker) http://www.datasheetcatalog.com/
CLICKAllDataSheet (by number) http://www.alldatasheet.com/

Semiconductor Manufacturer Logos & IDs
CLICKSemiconductor Manufacturer Logos (by image)

CLICKSemiconductor Manufacturer Logos (by image and name)

CLICKThe SMD Codebook: Identifying Semiconductor SMD Parts By Type (by code markings, very useful for ID'ing unknown SMD parts!)

On Line Calculators
CLICK600 Ohm Power dBm/dBu/Volts
CLICK50/75/600 Ohm Power dBm/mW/Volts
CLICK50 Ohm Power dBm/Watts/Volts

Semiconductor Manufacturers
CLICKAnalog Devices http://www.analog.com/en/index.html
CLICKAllegro http://www.allegromicro.com/
CLICKASI -hp- 5082 Diodes http://www.advancedsemiconductor.com/diodes/5082/5082.shtml
CLICKFairchild Semiconductor now On Semiconductor) http://www.onsemi.com/
CLICKInternational Rectifier (IR now Infineon) http://www.irf.com/
CLICKLinear Technology (now Analog Devices) https://www.analog.com/en/index.html
CLICKMicrochip Technology http://www.microchip.com/
CLICKNational Semiconductor is NOW TI http://www.ti.com/
CLICKON Semiconductor http://www.onsemi.com/
CLICKPhilips/NXP http://www.nxp.com/index.html
CLICKTexas Instruments http://www.ti.com/
CLICKVishay http://www.vishay.com/

Sphere's Semiconductor/Tube Databook Collection Downloads
(Collected from all over the web, thank you everyone for creating these scans)

CLICKHosted at Jim Allen's site Sorted by Category
CLICKHosted at KO4BB's site (by Paul Swed) Sorted by Category

Software Patches amd Updates
CLICKThe Software Patch (windows and apps) http://www.softwarepatch.com/
Shareware/Freeware Software
CLICKLINUX Links (os and apps) http://www.linuxlinks.com/
CLICKGet UBUNTU Linux (os and apps) https://ubuntu.com/
CLICKEverything Open Source - SourceForge (os and apps) https://sourceforge.net/

Obscure Materials + Parts
CLICKMu Metal (Magnetic Shielding) http://www.magnetic-shield.com/index.html
CLICKLighted Knobs (EHC Knobs) http://www.ehcknobs.com/

Test Equipment Manual Sites
CLICKSEE THIS PAGE ON OUR SITE http://www.sphere.bc.ca/test/manuals.html
Tektronix Frame/Plug-in Reference Sites:
CLICKTM500/TM5000 Modules http://www.barrytech.com/tektronix/tektm500/tektm500.html
Test Equipment Manufactuer's Transitions

A few years ago in 1999, Hewlett Packard split into: Hewlett Packard (computers and peripherals) and Agilent (Test Equipment and analytical equipment) Which then in turn then divested the RF semiconductor portion in 2005 to: Avago. Now in 2014, Agilent is split again into Agilent (medical and scientific) and Keysight (test and measurement).

Danaher Corporation Bought Tektronix (Test Equipment Manufacturer) in 2007 And had previously bought Fluke (Test Equipment Manufacturer), which itself had previously acquired Wavetek (Test Equipment Manufacturer) which had merged with Datron (Test Equipment Manufacturer).

For added confusion, The RF portion of Wavetek became Willtek Communications, which is now part of Aeroflex. Prior to this, PMI/Pacific Measurements (Microwave Test Equipment) had been acquired by Wavetek, but those assets eventually wound up as part of Gigatronics (Microwave Test Equipment), who mercifully are still around.

Long time avionics icon IFR (Avionics Test Equipment) and test equipment maker Marconi (RF Test Equipment) both became part of Aeroflex (Electronic Systems and Test Equipment).

Technical Resource Sites
CLICKdelabs Circuit Library http://www.electronics-circuits.com/cirdir/
CLICKRadioShack Catalogs From 1939 On http://www.radioshackcatalogs.com/catalog_directory.html
CLICKZ3801A/Z3816A GPS (resources) http://www.realhamradio.com/GPS_Frequency_Standard.htm
CLICKLegal Forms Online https://formspal.com/
CLICKFree Patents Online (Patent Search) http://www.freepatentsonline.com/
CLICKUS Copyright Office (Copyright Info) http://www.copyright.gov/
CLICKUS Patent and Trademark Office (Patent and Trademark Search) http://www.uspto.gov/
CLICKUS Harmonized Tariff Schedule (categories and numbers) http://www.usitc.gov/tata/hts/bychapter/index.htm

Useful Suppliers
CLICKDigi-Key (CANADA) https://www.digikey.ca
CLICKDigi-Key (USA) https://www.digikey.com/
CLICKFastener Express http://www.fastener-express.com/
CLICKLEDtronics http://www.ledtronics.com/
CLICKMagnetic Circuit Elements http://www.mcemagnetics.com/
CLICKRAF Electronic Hardware http://www.rafhdwe.com/
CLICKOKW Enclosures + Knobs https://www.okwenclosures.com/en
CLICKTamura http://www.tamuracorp.com/

Semiconductor Company Name Changes
Having trouble figuring out who is who these days? No surprise, there have been so many buy-outs, divestitures and mergers, it's hard to know who's who in the semiconductor zoo these days. Here's a list of some commonly sought after makers.

Was Is Now
RCA and GEFirst Harris, then Intersil, now Renesas, except for the CMOS, which went to TI
Motorola On Semiconductor
Burr Brown Texas Instruments (TI)
National Semiconductor Texas Instruments (TI)
Unitrode Texas Instruments (TI)
HP First Agilent, then Avago, now Broadcom
General Instrument
General Semiconductor
Siliconix Vishay
Telefunken Vishay
Dallas Semiconductor Maxim
Philips Semiconductor NXP
Semiconductor makers that now appear to be totally gone from production: Philco, Delco, CBS, Sylvania, Westinghouse, Clevite, Bendix, Transitron, Tung-Sol, Hoffman Semiconductor. Please Correct me if I am wrong!

Electronics Magazines On-Line
CLICKEDN http://www.edn.com/
CLICKElectronic Design http://electronicdesign.com/
CLICKElectronic Engineering Times (Asia) http://www.eetasia.com/
CLICKElectronic Products http://www.electronicproducts.com/
CLICKElektor http://www.elektor.com/
CLICKEveryday Practical Electronics (EPE) http://www.epemag3.com/
CLICKMicrowaves & RF http://www.mwrf.com/
CLICKMicrowave Journal http://www.microwavejournal.com/
CLICKNuts and Volts http://www.nutsvolts.com/

Resistor Color Codes
color code chart

Resistor Color Codes

Great classic component color code chart from New Zealand!
CLICK for bigger PIC!
CLICK for bigger PIC!

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