Radio Shack Science Fair kit

B

bitrex

Guest
Who had one of these as a kid?

<https://imgur.com/a/esSBe96>

<https://www.zpag.net/Electroniques/Kit/160_manual.pdf>

Build a drum/percussion sound generator using only the components
available in the kit. You even get an NPN, two PNPs and that integrated
circuit-thing to work with. Those transformers might be useful. Bonus
points for using the relay or the 7 segment display.

Here's my entry it's sort of like a Synare synth-tom.

Version 4
SHEET 1 2664 1268
WIRE -816 -976 -816 -1024
WIRE 1376 -896 1376 -1024
WIRE 1376 -896 736 -896
WIRE 1840 -896 1376 -896
WIRE -816 -816 -816 -896
WIRE 736 -784 736 -896
WIRE -384 -672 -384 -1024
WIRE -384 -672 -768 -672
WIRE 0 -672 -384 -672
WIRE 1376 -656 1376 -896
WIRE 736 -608 736 -720
WIRE 1312 -608 736 -608
WIRE 1376 -464 1376 -560
WIRE -768 -448 -768 -672
WIRE -384 -448 -384 -672
WIRE 0 -448 0 -672
WIRE 736 -432 736 -608
WIRE 1376 -256 1376 -384
WIRE 1376 -256 992 -256
WIRE 736 -192 736 -352
WIRE -384 -176 -384 -368
WIRE -384 -176 -480 -176
WIRE -272 -176 -384 -176
WIRE 992 -144 992 -256
WIRE -768 -128 -768 -368
WIRE -544 -128 -768 -128
WIRE 0 -128 0 -368
WIRE 0 -128 -208 -128
WIRE 224 -128 0 -128
WIRE 560 -128 224 -128
WIRE 0 -32 0 -128
WIRE 224 -16 224 -128
WIRE -768 16 -768 -128
WIRE 1376 16 1376 -256
WIRE 992 64 992 -64
WIRE 1312 64 992 64
WIRE 1840 64 1840 -896
WIRE -272 112 -272 -80
WIRE 368 112 -272 112
WIRE 720 112 368 112
WIRE 928 112 720 112
WIRE 1776 112 1376 112
WIRE 720 272 720 112
WIRE 1216 272 720 272
WIRE 1600 272 1296 272
WIRE 1840 272 1840 160
WIRE 1840 272 1600 272
WIRE 2032 272 1840 272
WIRE 2240 272 2096 272
WIRE 2304 272 2240 272
WIRE -768 288 -768 96
WIRE -480 288 -480 -80
WIRE 0 288 0 48
WIRE 224 288 224 48
WIRE 368 336 368 112
WIRE 992 352 992 160
WIRE 1840 448 1840 272
WIRE 2240 448 2240 272
WIRE 992 560 992 432
WIRE 368 656 368 416
WIRE 560 688 560 -128
WIRE 912 688 560 688
WIRE 1376 688 976 688
WIRE 1600 688 1600 272
WIRE 1600 688 1456 688
WIRE 2240 688 2240 528
WIRE 1840 704 1840 528
FLAG -816 -816 0
FLAG -816 -1024 Vcc
FLAG -384 -1024 Vcc
FLAG -480 288 0
FLAG -768 288 0
FLAG 0 288 0
FLAG 368 656 0
FLAG 224 288 0
FLAG 992 560 0
FLAG 736 -192 0
FLAG 1376 -1024 Vcc
FLAG 2240 688 0
FLAG 2304 272 OUT
IOPIN 2304 272 Out
FLAG 1840 704 0
SYMBOL npn 928 64 R0
SYMATTR InstName Q1
SYMATTR Value 2N2222
SYMBOL npn 1312 16 R0
SYMATTR InstName Q2
SYMATTR Value 2N2222
SYMBOL npn 1776 64 R0
SYMATTR InstName Q3
SYMATTR Value 2N2222
SYMBOL res 1312 256 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 5.6k
SYMBOL res 976 -160 R0
SYMATTR InstName R2
SYMATTR Value 10k
SYMBOL res 1360 -480 R0
SYMATTR InstName R4
SYMATTR Value 8.2k
SYMBOL voltage -816 -992 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 9
SYMBOL pnp -208 -80 R180
SYMATTR InstName Q4
SYMATTR Value 2N2907
SYMBOL pnp -544 -80 M180
SYMATTR InstName Q5
SYMATTR Value 2N2907
SYMBOL res -784 0 R0
SYMATTR InstName R7
SYMATTR Value 10k
SYMBOL res -16 -48 R0
SYMATTR InstName R8
SYMATTR Value 10k
SYMBOL res -784 -464 R0
SYMATTR InstName R10
SYMATTR Value 10k
SYMBOL res 352 320 R0
SYMATTR InstName R11
SYMATTR Value 2.2k
SYMBOL cap 976 672 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 0.47ÂľF
SYMBOL cap 208 -16 R0
SYMATTR InstName C3
SYMATTR Value 0.047ÂľF
SYMBOL res -400 -464 R0
SYMATTR InstName R6
SYMATTR Value 22k
SYMBOL res 1472 672 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R12
SYMATTR Value 4.7k
SYMBOL npn 1312 -656 R0
SYMATTR InstName Q6
SYMATTR Value 2N2222
SYMBOL res 720 -448 R0
SYMATTR InstName R14
SYMATTR Value 100k
SYMBOL cap 720 -784 R0
SYMATTR InstName C1
SYMATTR Value 3.3ÂľF
SYMBOL cap 2096 256 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value 2.2ÂľF
SYMBOL res 2224 432 R0
SYMATTR InstName R15
SYMATTR Value 47k
SYMBOL res 976 336 R0
SYMATTR InstName R13
SYMATTR Value 220
SYMBOL res 1824 432 R0
SYMATTR InstName R5
SYMATTR Value 750
SYMBOL res -16 -464 R0
SYMATTR InstName R3
SYMATTR Value 10k
TEXT -728 -936 Left 2 !.tran 1
TEXT 544 -608 Left 2 !.ic V(n001) = 9
TEXT 1976 160 Left 2 !.wave "C:/out.wav" 16 44100 out
 
On Saturday, 22 June 2019 07:28:50 UTC+1, bitrex wrote:
Who had one of these as a kid?

https://imgur.com/a/esSBe96

https://www.zpag.net/Electroniques/Kit/160_manual.pdf

Build a drum/percussion sound generator using only the components
available in the kit. You even get an NPN, two PNPs and that integrated
circuit-thing to work with. Those transformers might be useful. Bonus
points for using the relay or the 7 segment display.

Here's my entry it's sort of like a Synare synth-tom.
Click to expand...

snip

those spring kits are the best, as once the kid is bored of the projects in the book you can pull all the passives out, add some more and build loads more stuff. The springs are then just junction points.


NT
 
On Sun, 23 Jun 2019 06:50:48 -0700, tabbypurr wrote:

those spring kits are the best, as once the kid is bored of the projects
in the book you can pull all the passives out, add some more and build
loads more stuff. The springs are then just junction points.
Click to expand...

Check this one out. Dig those crazy mustard mullard caps!

https://www.youtube.com/watch?v=Laz-eW4jLcA

"Thinking Boys' Toys" they were. :)



--
This message may be freely reproduced without limit or charge only via
the Usenet protocol. Reproduction in whole or part through other
protocols, whether for profit or not, is conditional upon a charge of
GBP10.00 per reproduction. Publication in this manner via non-Usenet
protocols constitutes acceptance of this condition.
 
On 6/23/19 9:50 AM, tabbypurr@gmail.com wrote:
On Saturday, 22 June 2019 07:28:50 UTC+1, bitrex wrote:
Who had one of these as a kid?

https://imgur.com/a/esSBe96

https://www.zpag.net/Electroniques/Kit/160_manual.pdf

Build a drum/percussion sound generator using only the components
available in the kit. You even get an NPN, two PNPs and that integrated
circuit-thing to work with. Those transformers might be useful. Bonus
points for using the relay or the 7 segment display.

Here's my entry it's sort of like a Synare synth-tom.

snip

those spring kits are the best, as once the kid is bored of the projects in the book you can pull all the passives out, add some more and build loads more stuff. The springs are then just junction points.


NT
Click to expand...

I feel like the kit I had was earlier than that one, a hand-me-down from
the early 70s. The 100-in-1 kit, the "IC" didn't have much to it just a
transistor and a couple of diodes in a see-thru package. That one seems
to have a "real" IC with several on-chip transistors and resistors.
There is more sophistication and variety to the projects in the guide.
 
You must log in or register to reply here.

Welcome to EDABoard.com

Sponsor

Back
Top