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Summary comments provided by Texas Instruments' staff.


G00282   NMAH Catalog Number 1987.0487.004
 
TI number: G00282
Camera Electronic Control Module - This module controlled the shutter, flash and motor in the SX-70 camera. This item represents initial design version. From the type of potting compound compared to that on other samples in the collection, this was probably from an early development lot.

The IC's, transistors and diode were mounted and bonded on the ceramic substrate and then covered with a potting compound for mechanical and moisture protection. First prototype modules were shipped in February, 1972. This item was in a Polaroid file assembled by Prentiss (Buzz) Selby for the TI Historical Project. That file is in the TI Archives.

Related material in collection: Z00081, 280, 287, G00281, 283, 4, 6. Summary comment by: Willis A. Adcock.

G00283   NMAH Catalog Number 1987.0487.005
 
TI number: G00283
Camera Electronic Control Module - This item is a collection of modules from 1972-3 production representing the first design version.

Close examination shows various minor differences which represented efforts to improve performance or fabrication. A critical fabrication step was adjusting each module by laser trimming the resistors. One module in the collection shows the semiconductor chips without the potting compound.

Related material in collection: Z00081, 280, 287, G00281-1, 284, 286. Summary comment by: Willis Adcock.

G00283   NMAH Catalog Number 1987.0487.006
 
TI number: G00283
Camera Electronic Control Module - This item is a collection of modules from 1972-3 production representing the first design version.

Close examination shows various minor differences which represented efforts to improve performance or fabrication. A critical fabrication step was adjusting each module by laser trimming the resistors. One module in the collection shows the semiconductor chips without the potting compound.

Related material in collection: Z00081, 280, 287, G00281-1, 284, 286. Summary comment by: Willis Adcock.

G00283   NMAH Catalog Number 1987.0487.007
 
TI number: G00283
Camera Electronic Control Module - This item is a collection of modules from 1972-3 production representing the first design version.

Close examination shows various minor differences which represented efforts to improve performance or fabrication. A critical fabrication step was adjusting each module by laser trimming the resistors. One module in the collection shows the semiconductor chips without the potting compound.

Related material in collection: Z00081, 280, 287, G00281-1, 284, 286. Summary comment by: Willis Adcock.

G00283   NMAH Catalog Number 1987.0487.008
 
TI number: G00283
Camera Electronic Control Module - This item is a collection of modules from 1972-3 production representing the first design version.

Close examination shows various minor differences which represented efforts to improve performance or fabrication. A critical fabrication step was adjusting each module by laser trimming the resistors. One module in the collection shows the semiconductor chips without the potting compound.

Related material in collection: Z00081, 280, 287, G00281-1, 284, 286. Summary comment by: Willis Adcock.

G00283   NMAH Catalog Number 1987.0487.009
 
TI number: G00283
Camera Electronic Control Module - This item is a collection of modules from 1972-3 production representing the first design version.

Close examination shows various minor differences which represented efforts to improve performance or fabrication. A critical fabrication step was adjusting each module by laser trimming the resistors. One module in the collection shows the semiconductor chips without the potting compound.

Related material in collection: Z00081, 280, 287, G00281-1, 284, 286. Summary comment by: Willis Adcock.

G00283   NMAH Catalog Number 1987.0487.010
 
TI number: G00283
Camera Electronic Control Module - This item is a collection of modules from 1972-3 production representing the first design version.

Close examination shows various minor differences which represented efforts to improve performance or fabrication. A critical fabrication step was adjusting each module by laser trimming the resistors. One module in the collection shows the semiconductor chips without the potting compound.

Related material in collection: Z00081, 280, 287, G00281-1, 284, 286. Summary comment by: Willis Adcock.

G00283   NMAH Catalog Number 1987.0487.011
 
TI number: G00283
Camera Electronic Control Module - This item is a collection of modules from 1972-3 production representing the first design version.

Close examination shows various minor differences which represented efforts to improve performance or fabrication. A critical fabrication step was adjusting each module by laser trimming the resistors. One module in the collection shows the semiconductor chips without the potting compound.

Related material in collection: Z00081, 280, 287, G00281-1, 284, 286. Summary comment by: Willis Adcock.

G00283   NMAH Catalog Number 1987.0487.012
 
TI number: G00283
Camera Electronic Control Module - This item is a collection of modules from 1972-3 production representing the first design version.

Close examination shows various minor differences which represented efforts to improve performance or fabrication. A critical fabrication step was adjusting each module by laser trimming the resistors. One module in the collection shows the semiconductor chips without the potting compound.

Related material in collection: Z00081, 280, 287, G00281-1, 284, 286. Summary comment by: Willis Adcock.

G00283   NMAH Catalog Number 1987.0487.013
 
TI number: G00283
Camera Electronic Control Module - This item is a collection of modules from 1972-3 production representing the first design version.

Close examination shows various minor differences which represented efforts to improve performance or fabrication. A critical fabrication step was adjusting each module by laser trimming the resistors. One module in the collection shows the semiconductor chips without the potting compound.

Related material in collection: Z00081, 280, 287, G00281-1, 284, 286. Summary comment by: Willis Adcock.

G00284   NMAH Catalog Number 1987.0487.014
 
TI number: G00284
Camera Electronic Control Module - This module controlled the shutter, flash and motor in the SX-70 camera. This item represents the second design version.

In the second design version, the deposited resistors were not required which eliminated the trimming. Two IC's replaced the IC's, transistors, diode and resistors of the initial version. On of the modules, the IC's are sealed in a clear plastic for display purposes. Also, there is a slight difference in the interconnect pattern on the two items.

Related material in collection: Z00081, 280, 287, G00281-3, 285-6. Summary comment by: Willis Adcock.

G00284   NMAH Catalog Number 1987.0487.015
 
TI number: G00284
Camera Electronic Control Module - This module controlled the shutter, flash and motor in the SX-70 camera. This item represents the second design version.

In the second design version, the deposited resistors were not required which eliminated the trimming. Two IC's replaced the IC's, transistors, diode and resistors of the initial version. On of the modules, the IC's are sealed in a clear plastic for display purposes. Also, there is a slight difference in the interconnect pattern on the two items.

Related material in collection: Z00081, 280, 287, G00281-3, 285-6. Summary comment by: Willis Adcock.

G00197   NMAH Catalog Number 1987.0487.017
 
TI number: G00197
Camera Electronic Control Module - Module is one from the first day's production at the TI Taiwan plant - August 22, 1975. The module was used in the Polaroid PRONTO camera.

Project CUE was the code for the program. TI was sole source for Polaroid, with all production being done in Taiwan. The module was in production through 1981.

Related material in collection: G00285. Summary comment by: Euel Baldock, Jodie Horak, Al Leadaman.

P00221   NMAH Catalog Number 1987.0487.040
 
TI number: P00221
Photo Available Housing, Skid Control Circuit Board - The housing was for the final version of a truck (tractor) skid control circuit board. The design was done in 1973.

The board was mounted in the housing which was mounted on the truck chassis. The project was done for Kelsey-Hayes for use on Ford trucks. It was not put in full production because the Federal requirement for truck skid controls was canceled.

Related material in collection: P00237. Summary comment by: Ralph Dosher, James J. (Jim) Jones.

P00234   NMAH Catalog Number 1987.0487.137
 
TI number: P00234
Photo Available Control, Fry Pan - This is an early electric fry pan (skillet) control designed and manufactured by control products. It was introduced in 1963.

This patented control uses a TI rod and tube thermostat. Customers included Sunbeam, General Electric and West Bend. Both the rod and tube thermostat and the fry pan application are covered by TI patents.

Summary comment by: Ralph Doseher.

P00233   NMAH Catalog Number 1987.0487.160.01
 
TI number: P00233
Photo Available Relay, Time Delay - These relays represent a line introduced in the spring of 1971. They utilized a barium titanate positive temperature coefficient heater element to offer operation over a wide voltage range. The switch and actuating element is a thermostat using the Klixon snap-action bimetallic disc.

One of these items is a first model physical sample and the other is a first production model. The relay was originally designed for use with electric strip heaters. It is also used for fluorescent lighting ballasts. Other manufacturers were later licensed to manufacture relays using this design. An April, 1971, data sheet is in the Artifacts Historical Files.

Summary comment by: Ralph Dosher.

P00233   NMAH Catalog Number 1987.0487.160.02
 
TI number: P00233
Photo Available Relay, Time Delay - These relays represent a line introduced in the spring of 1971. They utilized a barium titanate positive temperature coefficient heater element to offer operation over a wide voltage range. The switch and actuating element is a thermostat using the Klixon snap-action bimetallic disc.

One of these items is a first model physical sample and the other is a first production model. The relay was originally designed for use with electric strip heaters. It is also used for fluorescent lighting ballasts. Other manufacturers were later licensed to manufacture relays using this design. An April, 1971, data sheet is in the Artifacts Historical Files.

Summary comment by: Ralph Dosher.

P00228   NMAH Catalog Number 1987.0487.187
 
TI number: P00228
Photo Available Circuit Board, Clothes Dryer Control. - The item represents the first electronic control for a clothes dryer. It was introduced by Control Products in 1972 and sold to Whirlpool for use in dryers manufactured by them.

This board is one of the first production units. They were mounted in control units like P00227.

Related material in collection: P00227. Summary comment by: Ralph Dosher.

G00285   NMAH Catalog Number 1987.0487.188
 
TI number: G00285
Camera Electronic Control Module - This flex connector module is the same as G00197 except for a later manufacturing date. See that item for information.

This item was manufactured in the TI Taiwan plant in late 1975.

Related material in collection: G00197. Summary comment by: Euel Baldock, Jodie Horak, Al Leadaman.

U00224   NMAH Catalog Number 1987.0487.218
 
TI number: U00224
Photo Available Amplifier - This semiconductor amplifier module was introduced in 1974 as a part of the 5TI programmable Controller System.

Summary comment by: Ralph Dosher, Gail H. (Hank) Nystrom.

G00226   NMAH Catalog Number 1987.0487.249.01
 
TI number: G00226
Photo Available Triac, Motor Controller - This item is an example of an experimental TI triac designed about 1972 in the Semiconductor Group for Control Products. It was itended for use in a motor controller to switch power on and off.

Cost and maximum voltage goals could not be met; therefore, the device was not put into production. However, the semiconductor process developments were useful for new device designs. A good distribution of 1300V and 45A units was attained compared to the requirement for 1500V. The active area was defined by a deep moat etch, and the chip was glass passivated on both sides.

Summary comment by: Louis Coleman, Ralph Dosher.

G00226   NMAH Catalog Number 1987.0487.249.02
 
TI number: G00226
Photo Available Triac, Motor Controller - This item is an example of an experimental TI triac designed about 1972 in the Semiconductor Group for Control Products. It was itended for use in a motor controller to switch power on and off.

Cost and maximum voltage goals could not be met; therefore, the device was not put into production. However, the semiconductor process developments were useful for new device designs. A good distribution of 1300V and 45A units was attained compared to the requirement for 1500V. The active area was defined by a deep moat etch, and the chip was glass passivated on both sides.

Summary comment by: Louis Coleman, Ralph Dosher.

P00237   NMAH Catalog Number 1987.0487.252
 
TI number: P00237
Circuit Board, Truck/Tractor Skid Control - The item is an engineering board of the final design for the truck tractor skid control system. The project was for Kelsey-Hayes and was to be used on Ford Trucks. The work was done in early 1973.

This board was used by engineering to check out part of the final design and processing. Hence, it does not represent a finished printed wire board of the final design. A completed board was mounted in a housing (P00221) which was mounted on the truck chassis. Because the Federal requirement for truck skid controls was canceled, the project was not put into production.

Related material in collection: P00221. Summary comment by: Ralph T. Dosher, James J. (Jim) Jones.

G00218   NMAH Catalog Number 1987.0487.253
 
TI number: G00218
Camera Electronic Control Module - These modules are of the original design built for Polaroid. It sensed the light intensity and set the shutter speed. The camera was the first commercial model built with an automatic shutter control.

The module was designed and originally built in the Assembled Functions department of the Components Division in 1961. Production continued until 1972-73. These modules have dates of 6-64 and 10-65.

Related material in collection: G00219. Summary comment by: Ralph Dosher, Elmer Elkins.

G00218   NMAH Catalog Number 1987.0487.254
 
TI number: G00218
Camera Electronic Control Module - These modules are of the original design built for Polaroid. It sensed the light intensity and set the shutter speed. The camera was the first commercial model built with an automatic shutter control.

The module was designed and originally built in the Assembled Functions department of the Components Division in 1961. Production continued until 1972-73. These modules have dates of 6-64 and 10-65.

Related material in collection: G00219. Summary comment by: Ralph Dosher, Elmer Elkins.

G00219   NMAH Catalog Number 1987.0487.255
 
TI number: G00219
Camera Electronic Control Module - This module is a later revision of the original Polaroid shutter control module. It sensed the light intensity and set the shutter speed. The camera was the first commercial model with an automatic shutter control.

The version of the module was put into production in 1961 in the Assembled Functions department of the Components Division in the late 1960's. Production of the design continued until 1972-3. This module had a date of 9-69.

Related material in collection: G00218. Summary comment by: Ralph Dosher, Elmer Elkins.

Z00280   NMAH Catalog Number 1987.0487.256
 
TI number: Z00280
Bracket, Camera Control Module Mounting - This item is the mounting bracket of the original design for holding the Electronic Control Module in the Polaroid SX-70 camera.

Related material in collection: Z00081, 287, G00281-4, 286. Summary comment by: Willis Adcock.

G00281   NMAH Catalog Number 1987.0487.257
 
TI number: G00281
Integrated Circuit - This module controlled the speed and braking of the film drive motor in the SX-70 camera. The date code (7208) indicates it was from one of the first lots shipped to Polaroid.

The item was in a Polaroid file assembled by Prentiss (Buzz) Selby for the TI History Project.

Related material in collection: Z00081, 280, 287, G00282-4, 6. Summary comment by: Willis Adcock.

G00286   NMAH Catalog Number 1987.0487.258
 
TI number: G00286
Camera Electronic Control Module - This item was probably one of the engineering prototype modules built in early 1971 for Polaroid to use in testing for feasibility of their Advanced Camera Program.

A document dated 5/6/71 found in a Polaroid file in the TI Archives describes the need and has two drawings of this module format. This work was done prior to Willis Adcock's direct involvement in the project.

Related material in collection: Z00081, 280, 287, G00281-4. Summary comment by: Willis Adcock.

P00222   NMAH Catalog Number 1987.0487.259
 
TI number: P00222
Circuit Board, Automotive Skid Control - This board represents the initial version of the circuit board for the Kelsey-Hayes Automotive skid control system. From the device date codes, this board was built in early 1972.

Discrete devices were used in the design which was done by Control Products with Semiconductor Group participation in 1969. The skid control was for use on Ford cars and trucks.

Related material in collection: P00223, P00237. Summary comment by: Raplh Dosher, James J. (Jim) Jones.

P00223   NMAH Catalog Number 1987.0487.260
 
TI number: P00223
Circuit Board, Automotive Skid Control - This board represents the final design of the circuit board for the Kelsey-Hayes automotive skid control system. It was built in February-March, 1973. The skid control was for use in Ford cars.

This design by Control Products with Semiconductor Group participation utilized three integrated circuits. Satisfactory performance of the skid control system was demonstrated, but it was not put into full production. Repeal of the Federal law requiring large trucks to be equipped with such a system deleted the major market requirement and resulted in cancellation of the project. However, some of the top of the line Ford cars were equipped with skid control as an option.

Related material in collection: P00222, P00237. Summary comment by: Ken Buss, Ralph Dosher, James J. (Jim) Jones.

P00227   NMAH Catalog Number 1987.0487.278
 
TI number: P00227
Photo Available Control, Clothes Dryer - The item is a mechanical sample of the first electronic control for a clothes dryer. The control was introduced 1972 and sold to Whirlpool for dyers manufactured by them.

This sample was made with production parts and tooling.

Related material in collection: P00228. Summary comment by: Ralph Dosher.

P00238   NMAH Catalog Number 1987.0487.284
 
TI number: P00238
Photo Available Thermostat Switch - The item is a very early Spencer thermostatic switch. It has a rod-and-tube bimetallic temperature sensing element and appears to use a monometallic Klixon disc for snap action control of the electrical connection.

This thermostatic switch was for industrial control. It has a tag dated 1-28-31. An internal plate has patent dates of 3-13-23 and 1-15-24 and a Westinghouse trademark. A few years after its formation, Spencer Thermostat Company was sold to Westinghouse and later to General Plate to form Metals and Controls which was merged into TI in 1959. See the Artifacts Historical Files for additional details supplied by Lyle McBride.

Related material in collection: P00239, 240-1. Summary comment by: Lyle McBride.

P00239   NMAH Catalog Number 1987.0487.285
 
TI number: P00239
Photo Available Thermostat Switch - The item is a very early Spencer thermostatic switch. It had a rod-and-tube bimetallic temperature sensing element and appears to use a monometallic Klixon disc for snap-action control of the electrical connection.

This thermostatic switch was for industrial control. It has a tag dated 1-28-31. An internal plate had patent dates of 3-13-23 and 1-15-24 and a Westinghouse trademark. A few years after its formation, Spencer Thermostat Company was sold to Westinghouse and later to General Plate to form Metals and Controls which has merged into TI in 1959. See the Artifacts Historical Files for additional details supplied by Lyle McBride.

Related material in collection: P00238, 240-1. Summary comment by: Lyle McBride.

P00240   NMAH Catalog Number 1987.0487.286
 
TI number: P00240
Photo Available Thermostat Valve - The item is a very early Spencer thermostatic valve. It has a rod-and-tube bimetallic temperature sensing element and a Klixon monometallic disc for snap action control of the valve.

The valve is cut-away to show internal construction and was for industrial control use. There is neither a name plate nor tag to indicate the date of the item. However, based on the information on other items submitted at the same time, it can be estimated that it dates from at least the early 1930's. See the Artifact Historical Files for additional details supplied by Lyle McBride.

Related material in collection: P00238-9, 241. Summary comment by: Lyle McBride.

P00241   NMAH Catalog Number 1987.0487.287
 
TI number: P00241
Photo Available Thermostat Switch - According to the tag attached to the item, it was made by General Motors using parts from a Klixon Room Thermostat prior to June 1949. It uses a bulb and bellows type sensing element and a Klixon monometallic disc for snap action control of the electrical connection.

The switch was probably used in an industrial application. See the Artifacts Historical Files for additional details supplied by Lyle McBride.

Related material in collection: P00238, 9, 240. Summary comment by: Lyle McBride.

G00182   NMAH Catalog Number 1987.0487.290
 
TI number: G00182
Photo Available Clutch, magnetic fluid - This is a cut-away model of the magnetic fluid clutch used in the Meter/Positioner Movement in the RD-47A recorders.

See C00170 for additional information on the development and use of the magnetic fluid clutch.

Related material in collection: C00170. Summary comment by: Ralph Dosher, Mark Shepherd, Jim Wissemann.

G00313   NMAH Catalog Number 1987.0487.322
 
TI number: G00313
Photo Available Ignition Control Module - This is one of several engineering experimental ignition modules designed and built at TI in 1957 to prove the practicability of a transistorized circuit. These modules received successful road testing in both automobiles and trucks.

In addition to the testing by TI engineers in their personal cars, at least one manufacturer sponsored cross-country truck testing. No failures were reported; performance was improved over that of the conventional system; and wear on the ignition points was negligible. TI did not continue the project because technology limitations at the time made meeting the high voltage and unit cost requirements for the transistors in production impossible. The transistors used were selected early 2N389's. This device type became very widely used and was recognized for its ruggedness. This module was used for several months by Willis Adcock in his personal automobile with good performance. It was removed so as not to confuse the mechanic working on another problem.

Summary comment by: Jim Nygaard, Johnny Ereckson.



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