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Interesting. I repaired some TTL recently with new from Mouser TI
parts with not-shiny legs. They soldered fine though so I didn't
give it much thought until I started reading this thread.<br>
<br>
GB <br>
<br>
<div class="moz-cite-prefix">On 11/1/2020 7:37 PM, Doug Terrebonne
via Synth-diy wrote:<br>
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<div dir="ltr" data-setdir="false">Yep see those blackened
socketed TIs all the time especially in OB-X/Xas.</div>
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<div dir="ltr" data-setdir="false">Doug <br>
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<div dir="ltr" data-setdir="false">synthparts.com<br>
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<div> On Sunday, November 1, 2020, 3:03:36 PM PST, KA4HJH
<a class="moz-txt-link-rfc2396E" href="mailto:ka4hjh@gmail.com"><ka4hjh@gmail.com></a> wrote: </div>
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<blockquote class="ydp8af52843yiv2906015250"
type="cite">
<div class="ydp8af52843yiv2906015250yqt4525687433"
id="ydp8af52843yiv2906015250yqtfd67861">
<div class="ydp8af52843yiv2906015250">On Nov 1,
2020, at 5:26 PM, Kenny Balys <<a
shape="rect" class="ydp8af52843yiv2906015250"
href="mailto:kenny@beatkamp.com"
rel="nofollow" target="_blank"
moz-do-not-send="true">kenny@beatkamp.com</a>>
wrote:</div>
<div class="ydp8af52843yiv2906015250"><br
class="ydp8af52843yiv2906015250"
style="font-family: Helvetica; font-size:
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clear="none">
<span class="ydp8af52843yiv2906015250"
style="font-family: Helvetica; font-size:
14px; font-style: normal; font-weight: normal;
letter-spacing: normal; text-indent: 0px;
text-transform: none; white-space: normal;
word-spacing: 0px; text-decoration-line: none;
text-decoration-style: solid;
text-decoration-color: currentcolor; float:
none; display: inline !important;">Yes!!!!!</span><br
class="ydp8af52843yiv2906015250"
style="font-family: Helvetica; font-size:
14px; font-style: normal; font-weight: normal;
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clear="none">
<br class="ydp8af52843yiv2906015250"
style="font-family: Helvetica; font-size:
14px; font-style: normal; font-weight: normal;
letter-spacing: normal; text-indent: 0px;
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clear="none">
<span class="ydp8af52843yiv2906015250"
style="font-family: Helvetica; font-size:
14px; font-style: normal; font-weight: normal;
letter-spacing: normal; text-indent: 0px;
text-transform: none; white-space: normal;
word-spacing: 0px; text-decoration-line: none;
text-decoration-style: solid;
text-decoration-color: currentcolor; float:
none; display: inline !important;">They were
both TI and the device was manufactured in
1979.</span><br
class="ydp8af52843yiv2906015250"
style="font-family: Helvetica; font-size:
14px; font-style: normal; font-weight: normal;
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clear="none">
<br class="ydp8af52843yiv2906015250"
style="font-family: Helvetica; font-size:
14px; font-style: normal; font-weight: normal;
letter-spacing: normal; text-indent: 0px;
text-transform: none; white-space: normal;
word-spacing: 0px; text-decoration-line: none;
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clear="none">
<span class="ydp8af52843yiv2906015250"
style="font-family: Helvetica; font-size:
14px; font-style: normal; font-weight: normal;
letter-spacing: normal; text-indent: 0px;
text-transform: none; white-space: normal;
word-spacing: 0px; text-decoration-line: none;
text-decoration-style: solid;
text-decoration-color: currentcolor; float:
none; display: inline !important;">Both IC's
were socketed. I had to pull disconnected legs
out of the</span><br
class="ydp8af52843yiv2906015250"
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14px; font-style: normal; font-weight: normal;
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clear="none">
<span class="ydp8af52843yiv2906015250"
style="font-family: Helvetica; font-size:
14px; font-style: normal; font-weight: normal;
letter-spacing: normal; text-indent: 0px;
text-transform: none; white-space: normal;
word-spacing: 0px; text-decoration-line: none;
text-decoration-style: solid;
text-decoration-color: currentcolor; float:
none; display: inline !important;">sockets
after removing the chips. They shed their
legs.</span><br
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style="font-family: Helvetica; font-size:
14px; font-style: normal; font-weight: normal;
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I saw this happen once with a Bally pinball machine from
the late '70s, the first generation electronic ones. The
logic board was damaged by a leaking NiCd battery (the
most common mode of failure) and when I tried to pull
the ROMs out of the sockets the legs just snapped off. I
don't recall the manufacturer.
<div class="ydp8af52843yiv2906015250"><br
class="ydp8af52843yiv2906015250" clear="none">
</div>
<div class="ydp8af52843yiv2906015250">I don't know if
the battery had anything to do with it. It's mounted
at the bottom of the board and the firmware is up at
the top. I've seen these boards with much worse
corrosion and the ROMs/EPROMs were OK.
<div class="ydp8af52843yiv2906015250"><br
class="ydp8af52843yiv2906015250" clear="none">
</div>
<div class="ydp8af52843yiv2906015250"><br
class="ydp8af52843yiv2906015250" clear="none">
</div>
<div class="ydp8af52843yiv2906015250">
<div class="ydp8af52843yiv2906015250">
<div class="ydp8af52843yiv2906015250"
style="text-indent: 0px;">
<div class="ydp8af52843yiv2906015250"
style="color: rgb(0, 0, 0); letter-spacing:
normal; text-transform: none; white-space:
normal; word-spacing: 0px; text-indent: 0px;">Terry
Bowman, KA4HJH<br
class="ydp8af52843yiv2906015250"
clear="none">
"The Mac Doctor"<br
class="ydp8af52843yiv2906015250"
clear="none">
<br class="ydp8af52843yiv2906015250"
clear="none">
</div>
<div class="ydp8af52843yiv2906015250"
style="text-indent: 0px;"><a shape="rect"
class="ydp8af52843yiv2906015250"
href="https://www.astarcloseup.com/"
rel="nofollow" target="_blank"
moz-do-not-send="true">https://www.astarcloseup.com/</a></div>
<div class="ydp8af52843yiv2906015250"
style="text-indent: 0px;"><br
class="ydp8af52843yiv2906015250"
clear="none">
</div>
<div class="ydp8af52843yiv2906015250"
style="color: rgb(0, 0, 0); letter-spacing:
normal; text-transform: none; white-space:
normal; word-spacing: 0px; text-indent: 0px;">“The
book said something astonishing, a very big
thought.<br class="ydp8af52843yiv2906015250"
clear="none">
It said that the stars were suns, only very
far away.<br class="ydp8af52843yiv2906015250"
clear="none">
The Sun was a star, but close up.”—Carl Sagan,<span
class="ydp8af52843yiv2906015250Apple-converted-space"> </span><i
class="ydp8af52843yiv2906015250">Cosmos</i>, 1980
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clear="none">
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id="ydp8af52843yiv2906015250yqtfd69711">
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id="ydp8af52843yiv2906015250yqtfd73829">
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