Note: The LED displays that previously were on this page have been moved to a separate page here.
Note: The clock chips that previously were on this page have been moved to a separate page here.
The SN94281 Complex Sound Generator is a 16-pin sound effects
integrated circuit.
The datasheet (this one from Radio Shack) has eight panels.
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This is a Texas Instruments SN76477N complex sound generator
sold by Radio Shack as catalog number 276-1765.
I had two of these, still in the package - they were traded for some other interesting old items. Click here for a 4-page article on this chip from the October 1978 issue of Popular Electronics. (Article is in Adobe PDF.) |
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Voice Synthesizer IC
SP0256-AL2 Allophone Speech Set (Radio Shack 276-1784) |
Eraseable Programmable Read-Only Memory (EPROM)
on ceramic base.
I have four of these chips.
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Eraseable Programmable Read-Only Memory (EPROM)
on ceramic base.
I have four of these chips.
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This is a digital noise generator, Radio Shack part number 276-1768.
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I have a bag of 10 MM5736N calculator chips.
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MCM2114P20 (4), uPD2114LC (1): Motorola 4K static RAM (1Kx4)
8040016 (80): 16K dynamic RAM (4116) 200nS (Radio Shack catalog 276-2503) "Universal Memory Board": Radio Shack catalog 276-184
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Miscellaneous Radio Shack Parts
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Mystery chip.
I have one of these chips.
A viewer has identified the logo as General Instruments.
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Unmarked, what looks to be an EPROM.
I have seven of these chips.
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This chip is stamped MM5202AQ but I haven't been able to
find out more information about it.
Update: I've been informed that this is the same as a 1702 EPROM.
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