Digest for sci.electronics.repair@googlegroups.com - 1 update in 1 topic

Phil Allison <pallison49@gmail.com>: Mar 11 02:31PM -0700

John Robertson wrote:
 
> Thanks Phil, of course I meant the 723. That is why you should never
> post after an evening of wine...
 
** Back in the early 1970s, I put together a bench PSU for myself using an LM723 plus 2N3055 pass transistor.
 
The 723 was in the then common TO100 round, gold lead pak.
 
https://gridchoice.com/shop/can-type/12455-ic-voltage-regulator-fairchild-u5r7723393-to100-10.html
 
 
I still have and use the PSU.
 
With the addition of a few upgrades, it does 2.2 to 20V at 2 amps with continuously variable current limit from 100mA up.
 
 
 
.... Phil
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