G8MNY > TECH 02.05.25 09:15z 78 Lines 3529 Bytes #130 (0) @ WW
BID : 31676_GB7CIP
Subj: Lab Breadboard
Path: ED1ZAC<ED1ZAC<GB7CIP
Sent: 250502/0907Z @:GB7CIP.#32.GBR.EURO #:31676 [Caterham Surrey GBR]
From: G8MNY@GB7CIP.#32.GBR.EURO
To : TECH@WW
By G8MNY (Updated Nov 20)
(8 Bit ASCII graphics use code page 437 or 850, Terminal Font)
Many years ago I bought a AT102 Digital Lab by "A-Tek". It is a mains powered
electronics breadboard laboratory using 0.5mm wire connectors. I have use it
quite a bit, but there is no reasion why anyone could not build up there own
version of a breadboarding lab.
ñ5V <ÄÂÄÄÄ¿
_________________________________ ñ0-18 <Ä´PSUÃ<Off/onÄMains
³ Raised Top ³\B 5V float <ÄÁÄÄÄÙ
³________________________________³ \A
\ onø (o) 7seg DVM \ \C Sine <ÄÂÄÄÄ¿
\offø Freq 8 8 +1.99 \ \K Traingle <Ä´OSCÃÄ<ñ5V
\ O O 12345678 O \ \ Square <ÄÁÄÄÄÙ<Freq
\ Band Level LEDs Range \ Ý
³~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~³ Ý Range ÚÄÄÄÄÄÄ¿
³ + var - .JK. [DIP] (o)(o)(o)(o) ³ B Ý >Ä´DC DVMÃÄ<Float 5V
PSUs ³ O V O ........ ... . . . . ³ aÞB Inputs >ÄÁÄÄÄÄÄÄÙ
³ :ÚÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄ¿³ sÞ
³ :³ úúúúú ³ úúúúúú ³ ³³ eÞO Volume >ÄÂÄÄÄ¿
Volume ³ O Afú :³:±± ±±:³:±± ±±:³ ³³ Ý ³AmpÃÄ<ñ5V
³ :³:±± ±±:³:±± ±±:³Bread-³³LSÝT LS <ÄÁÄÄÄÙ
Switches³ !!!! :³:±± ±±:³:±± ±±:³boards³³ Ý
³ :³:±± ±±:³:±± ±±:³ ³³ Þ T LEDs <ÄÂÄÄÄÄÄÄÄ¿
³ :³:±± ±±:³:±± ±±:³ ³³ Þ ³DriversÃÄ<+5V
Switches³ ! ! :³:±± ±±:³:±± ±±:³ ³³ Þ O Inputs >ÄÁÄÄÄÄÄÄÄÙ
³ :³:±± ±±:³:±± ±±:³ ³³ Ý
³ :³:±± ±±:³:±± ±±:³ ³³ Ý M Switches Ä< ñ5V
Push ³ o o :³ ..... ³ ...... ³ ³³ Ý
Buttons³ :ÀÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÙ³Þ Flip Output <ÄÂÄÄÄ¿
ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÙ ³J KÃÄ<+5V
F R O N T Input >ÄÁÄÄÄÙ
POWER SUPPLY: a multi wound & tapped transfomer provides DC voltages to various
regulators to give;- Fixed: +5V DC @ 2A max, & -5V DC @ 500mA max. A floating
+5V for the DVM, Variable: 0 to +18V DC @ 800mA max, 0 to -18V DC @ 500mA max.
OSCILLATOR: 1Hz - 100kHz in 4 decade ranges. output:-
Square, & Ramp Outputs ñ5V. Sine output variable to ñ3V constant level with
buffer amp. (added CR filters, to improve shape)
AF AMPLIFIER & LS: (added as room inside) High gain audio monitor amplifier &
gain control with internal LS or 1W into 8ê 3.5mm output jack, 100k input Z.
LOGIC TOOLS:
4 logic level switches give 0 & 5V,
2 centre off logic level switches give -5, 0, +5V,
2 press buttons +5v or 0V pressed,
1 J-K Flip Flop gate,
8 data display LEDS with drivers, +5V for on,
2x 7 segment displays with drivers.
COMPONENT PATCH BREADBOARDS
Two 48 row component boards for 0.5mm wires etc.
For 0.4" DIL ICs, bus surround. & for 0.2" DIL ICs, bus surround.
EXTERNAL CONNECTION CONVERTERS
Four 4mm wander sockets to 0.5mm wire sockets.
3« DIGIT DC VOLT METER
Isolated meter, 10Mê Input.
Ranges 0-200mV, 0-2V, 0-20V, 0-200V.
USES
Plug in Rs, Cs, transistors, IC etc to make a test circuit up. I keep long lead
components for use in it, & often make up actual circuits with short lead
recovered components etc. Quite useful for AF responce checks & even some
complex analoge & digital IC setup tests.
Why don't U send an interesting bul?
73 De John, G8MNY @ GB7CIP
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