Description:
Electronic circuit design.
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Help identifying dead electro. cap polarity?
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This cap was removed from a 70's-80's German industrial machine: <[link]> It has no polarity markings. One terminal is common with the metal case. Is this always an indication of the (-) terminal? The base has molded terminal locations numbered 1-4, two of which are empty:... more »
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Micromax X211 Price and Features
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Looking for some flashy, low priced yet multifunctional mobile phone? A mobile phone which has all the features of the latest phone, is easy to carry and also looks attractive. Here’s one which puts others aside in terms of price, features and functionality. Hands free and speed dial it has all the features of a good GSM... more »
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Arizona is going down the tube.......
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In Arizona, the budget has grown so gloomy that lawmakers are considering mortgaging Capitol buildings. [link] Maybe they should look for Jims offshore accounts to fill the shortfalls. :-) don
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High-ohm grid resistor in tube (pre)amp design
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Hi all, I regularly repair tube amplifiers, and there's one thing I occasionally encounter that doesn't appear to make much sense: a high resistor (> 100K) in series with one of the first 12AX7 preamp tube grids. OK, I fully understand that this resistor, together with the Miller capacitance between grid and anode, can act as a high cut-off filter, and... more »
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thermostat switch
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Does anybody make a gadget that combines programmable thermostat and AC outlet? I have two applications in mind. ...I want to control temperature in small room using space heater. ...If one has an apartment heated by what (I think) is called gas log - furnace-gas stove combination. The gas is electrically ignited (the... more »
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Earn handsome Income with google
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EARN GOOGLE ADS MONEY “Everyday Google sells several $10 million’s in pay-per-clicks. But I get all mine absolutely FREE – and now I am going to show you how to get yours FREE also!” That’s right – Start Sharing in the *Incredible* Secret So Few Others Know About that Allow Them to Actually Get All... more »
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