I believe everyone in the forum knows very well that for many years 723 was used to make many kinds of power supply circuits for beginners, electronic enthusiasts and as well students.
So with that in mind, while i was trying to find a circuit i could start with
i found this schematic where it mentions the L146. http://www.elecfree.com/electronic/...146lm327-power-supply-regulator-0-40v-08a.jpg (i believe after looking at the style, the schematic comes from a scanned copy from an old elektor magazine)
I am not like the NTE reference guide (if you know what i mean) and because that chip seemed to be some strange for me i decided to look into datasheets and i found it under this link: http://www.datasheet4u.com/download.php?id=501427
http://www.datasheet4u.com/html/L/1/4/L146CB_ETC.pdf.html
As well i compared with other manufacturers of the 723 (including national semiconductor, ST Microelectronics, Texas instruments. And i found really very few differences between the L146 and 723.
However datasheets dont explain very well which performs best?, as far as i see it, it seems L146 offers higher input voltage 80V over 40V offered by LT.
I can't identify L146 manufacturer. Could anyone give me a clue on that?
And more importantly, what's the big deal with L146 and 723? . Is it an improved version, a cheap clone?, a copy,? a spinoff?.
So with that in mind, while i was trying to find a circuit i could start with
i found this schematic where it mentions the L146. http://www.elecfree.com/electronic/...146lm327-power-supply-regulator-0-40v-08a.jpg (i believe after looking at the style, the schematic comes from a scanned copy from an old elektor magazine)
I am not like the NTE reference guide (if you know what i mean) and because that chip seemed to be some strange for me i decided to look into datasheets and i found it under this link: http://www.datasheet4u.com/download.php?id=501427
http://www.datasheet4u.com/html/L/1/4/L146CB_ETC.pdf.html
As well i compared with other manufacturers of the 723 (including national semiconductor, ST Microelectronics, Texas instruments. And i found really very few differences between the L146 and 723.
However datasheets dont explain very well which performs best?, as far as i see it, it seems L146 offers higher input voltage 80V over 40V offered by LT.
I can't identify L146 manufacturer. Could anyone give me a clue on that?
And more importantly, what's the big deal with L146 and 723? . Is it an improved version, a cheap clone?, a copy,? a spinoff?.