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HISTORIC TRANSISTOR HOBBYIST SUPPLIES!
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Authentic
Supplies for the Semiconductor Historian
and Kit Builder.
Available
Only from the TransistorMuseum™
These
Integrated Circuits Are Brand New and Guaranteed to Work!
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Historical Background
Beginning
in 1961, two companies (Fairchild and Texas Instruments) began offering the
first Integrated Circuits for commercial sale. These ICs were silicon and contained a few transistors,
diodes, resistors and even capacitors on the silicon “chip”. These ICs implemented basic logic
functions and used a type of circuitry known as RTL (Resistor Transistor
Logic), or similar versions known as DCTL and RCTL. Initial prices were quite high ($50 for
example), but began to fall as more companies entered the market. Fairchild used the copyrighted name
MicroLogic ® and uLogic® for their first ICs. These 923 units are Fairchild uLogic RTL ICs from the early
70s. The 923 contains 15 transistors and performs the logic function
defined as J-K Flip-Flop. Your
units are type 923EC, which indicates commercial temperature range and
epoxy case. There are eight leads
on the 923, with details provided in your documentation.
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Your 923 RTL IC Order Will
be Supplied in the Storage/Display Envelope Shown Above, which Includes an
Insert with Historical Description and a Schematic.
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FAIRCHILD uLogic® 923
RTL Integrated Circuit
J-K Flip-Flop
Vintage
1960s –70s
Use:
Computers/Logic Circuits
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Your TransistorMuseum™
923 RTL IC
Order Will Contain:
Two
New RTL ICs
(Style Shown Above)
Hobbyist
Insert Depicting the Historical Importance of these Classic Logic ICs,
Includes a Schematic and Description of a Computer Circuit Using the 923.
A
TransistorMuseum™ Classic
Semiconductor
Storage
and Display Envelope
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ORDER NOW
$10 per Package (Two ICs)
Includes
Shipping Within U.S.
Email
me at
transistormuseum@aol.com
To
Determine Payments Options
(Paypal
or Check)
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COPYRIGHT © 2002
By Jack Ward
All Rights
Reserved.
http://www.transistormuseum.com
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