[amsat-bb] Re: way off topic
domenico.i8cvs at tin.it
Sun Feb 10 08:52:02 PST 2008
----- Original Message -----
From: "don" <donmc at xtra.co.nz>
To: <amsat-bb at amsat.org>
Sent: Sunday, February 10, 2008 8:35 AM
Subject: [amsat-bb] way off topic
> Hi to the list ,
> Does any one have a data sheet or a link to one, for an MC1460 voltage
> The voltage regulator board in my krautkramer USIP11 ultrasonic test
> set has failed and I suspect the above IC but I have no info at all on
> this IC, an extensive google search has revealed no info. Maybe some one
> has this info. My motorola data books only go back to 1979, and I think
> this IC is circa 1970.... The unit was made in 1976 ( and has been
> extremely reliable...) most of the components in it are from the early
> '70's. shades of AO7!
> Any replies off list if you prefer,
Hi Don, ZL1THO
I have used a variable voltage regulator MC1460 back in 1973 to get
a precise +3.6 V at 0.5 A for my homebrewed APT receiver.
Looking back in my papers I have found the schematic diagram and the
9 pin connections.
I will send to you a scanned copy of it.
By the way in my circuit:
Pin 3 = unregulated input = +20 volt DC
Pin 1 is connected to pin 4 via a 0.8 ohm limiting resistor
Pin 4-5 connected in parallel = regulated voltage +3.6 volt DC
The above variable voltage regulator was a most early in 1973 but if it
failed and having the pin connections of it you can replace a MC1460
with a LM317 with minor circuit changes.
Best 73" de
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