Archive for the ‘Uncategorized’ Category:

2018-03-02 One Transistor AM Radio

FB group Building Transistor Radios In JF1OZL’s voluminous archive I found his version of a MW receiver.  It is labeled [2] …. MW-RADIO (see link).  He used a long wire antenna, and an IF transformer with the ceramic capacitor removed for the tuning coil.  He also said to use a ferrite loopstick, which is what

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2018-02-28 Pension Unfunded Liability Article

From From FB group Orange Talk Also see LA Times article http://www.latimes.com/projects/la-me-pension-crisis-davis-deal/ This was from the .PDF document here  http://www.ocgrandjury.org/pdfs/2015_2016_GJreport/2016-06-15_Website_Report.pdf “Here were the Grand Jury’s findings about how the entire county should deal with pension reform: RECOMMENDATIONS In accordance with California Penal Code §933 and §933.05, the 2015-2016 Grand Jury requires (or as noted, requests)

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2018-02-14  LED 2nds, Factory Rejects

I’ve had several LED purchases that were LEDs of poor quality, actually factory rejects.  The sellers may not have known that the LEDs had “chipped chips” missing a piece, or bubbles or inclusions, but even more commonly, the LED chip is off center so the beam pattern is distorted.  I let the sellers know, and

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2018-02-04 AT&T Breakup Speculation

From FB group Bell Telephone of … From a customer viewpoint, I’d agree with Trevor Hammonds.  Glenn Peters said, “…there were some gains, but more losses.”  Gains or losses for whom? Looking back at what MCI did – selling long distance minutes for half the price – I think that CLECs would have independently introduced

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2018-01-31 1kHz Wien Bridge Oscillator Kit

Also photo posted to FB group Building Transistor Radios. I got several of these Wien Bridge Oscillator kits from an eBay seller in China.  They are built using the circuit from http://redcircuits.com/Page13.htm More information can be found on the wiki for this oscillator. The kits come with no instructions, so to assemble it, use this red circuits

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2018-01-26 Transistors, Labeling and Numbering

From FB group Building Transistor Radios The silicon transistor wafers may have been made in the US, but the wafers were shipped to foreign countries to be assembled into the actual transistors.  The wafer is cut up into tens of thousands of individual transistors, and after assembly they are tested and separated by the results. 

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2018-01-25 Public Pensions Aren’t The Problem.

From FB group Orange Talk Karl Seppala You are complaining about the wrong group.  First off, the state employees are getting what they are allowed to get.  The pension reform act did away with a lot of the cheaters.  If you don’t like it, the legislature is the ones who can change the laws.  And

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2018-01-24 Winning The Lottery – Not So Good

From article in https://www.fool.com/retirement/2018/01/27/maybe-you-were-better-off-not-winning-the-lottery.aspx Burning cash CNN reports that Americans spent over $80 billion on lottery tickets in 2016, or more than they spent on books, movies, music, sports tickets, and video games combined. That’s the equivalent of almost $250 being played by every man, woman, and child in the U.S., and since kids can’t buy

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2018-01-23 Reply To Banned Without Notice

reply to a FB group admin I was really flustered last week when I was “banned without notice” for something I had no idea apparently would offend someone – a moderator.  What did I do wrong? In another group I was banned because someone else was offensive, and when I blocked him, *he* complained to

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2018-01-22 Demo Of Wireless Charging

for FB group Electronics Hobbyists The demonstration of a wireless charging circuit that I built uses a Joule Thief circuit with two yellow LEDs in series.  The coil is a hand wound loop about 75 mm or 3 inches diameter.  A second loop of gray wire with a white LED (dimly lit at bottom) is

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