Message 25517 in TECH.WW
From: G8MNY
Date: Wed, 08 Jul 26 08:32:00 Z
Newsgroups: TECH.WW
Subject: Lab Breadboard
Message-ID: <64431_GB7CIP>
Path: N2MH4|VE3KPG|GB7CIP
R:260708/0833Z 33415@N2MH4.#SENC.NC.USA.NOAM LinBPQ6.0.24
R:260708/0832Z 25872@VE3KPG.#ECON.ON.CAN.NOAM BPQ6.0.25
R:260708/0832Z @:GB7CIP.#32.GBR.EURO #:64431 [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.
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:-
buffer amp. (added CR filters, to improve shape)
AF AMPLIFIER & LS: (added as room inside) High gain audio monitor amplifier and
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.
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, and I 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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