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 4, 5, 6 + Transistor sets

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FrankB
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Join date : 2010-11-22

PostSubject: 4, 5, 6 + Transistor sets   2014-08-24, 8:28 pm

Back when transistor radios first came out there was what I call the "Transistor Wars".
More transistors were better, was the theory. Just like "The more tubes the better". radio theory.

Well the truth is many of the manufacturers in Japan at the time came up with a novel way of exploiting this.

They would take a 4 transistor set and add one more transistor- not even connected in the circuit- and Presto! A 4 xistor set became a 5 xistor set- or more. (I suspect the added xistors were fallouts, but one tech actually replaced one of the defective xistors in a radio with the "spare" so to speak, and it worked fine.
I saw my share of those with puzzlement until I read a trade journal article on this practice. Evil or Very Mad 

Often they would also use a transistor as a detector diode too, thereby increasing the count upwards.

Of course they would also tout the number of xistors and diodes too. "This set uses 5 transistors and 2 diodes!".

So if you run into one of these AM radios, you now know some of the history, and the" Mystery of the non- connected transistor"
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Cliff Jones
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PostSubject: Re: 4, 5, 6 + Transistor sets   2014-08-24, 8:43 pm

Of course they would also parallel and series transistors for more count. What is funny is they would use two or four transistors in the tinny audio stages. LOL

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MEZLAW

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Join date : 2012-10-28

PostSubject: Re: 4, 5, 6 + Transistor sets   2014-08-24, 8:50 pm

Interesting, I didn't know that, but I guess I did fall for it when I was a kid.  Embarassed 
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