Silicon Valley Computer SHUGART 706 User Manual download pdf (Page 33)

delayed

pulse

from any of the

other output

pins; the

choice of

pins is

determined

by the

amount

of delay needed.

using

a binary counter

the

4040,

you

can generate a

much

longer

delay.

Since

there's no en-

able pin

available,

things

have to

be done a bit differently.

The IC is

set up

start

counting as

soon as

power

applied.

The trigger

pulse

will

cause

the device

to reset to

zero and you can

pick off your de-

layed

pulse

at any

of the device's

output pins.

The price you

pay

for simplicity

is that the circuit

you hang on

the

output

has to be

set

ignore

pulses

until the trigger

pulse

generated.

That

because

the

4040 will always

be counting

through

its full range and your

se-

lected output

will be high once

per complete

count.

That problem

can be

solved

with some additional

gating, but

the

idea here is to keep

the circuit

as simple as

possible.

In any event,

those suggestions

are just

that -suggestions.

than likely

you

can

think of

lots of

simple alternatives

that

are even

more flexible than these.

Product of the month

Every

so often

run across a

product that's not only reasonably

priced and extremely handy, but

helps

eliminate

all kinds of hassles

as well. From now on, when I find

one of those things,

I'll

be award-

ing it the

soon-

to -be- famous "Sil-

FIG.

ver

Soldering

Iron." I probably

won't be bestowing that

honor too

often, because

there's a

lot

junk

out there; but

when I find some-

thing that's really

worth honoring,

I'll let you know about

it.

The winner of the

first

Silver Sol-

dering

Iron is the Portasol from

The Boardworks (1077

East Edna

Place, Covina, CA

91722). See

Fig.

2. It's

a butane

-powered, pocket

sized soldering

iron. Imagine,

batteries,

no static electricity,

grounding

problems, etc.

list

price of $25.00, it

really neat

and

inexpensive

alternative

to bat-

tery- powered portable

soldering

irons,

and you don't

have to

worry

about

running out of

power

before

you get to the

last connection.

The Portasol can be

refilled with

any

ordinary cigarette -lighter

butane cartridge and gives

about

an hour of operation

per charge.

There are several different

tips

available for the unit, and

the heat

can be

adjusted with a twist

valve

in much the same

way

cigarette -

lighter flame

regulated.

I've

been using

my Portasol

for

few months and

it works

perfectly.

It's a

well -built realization of a

good idea. I owe my

living

to elec-

tricity, but

this is one time

when

gas

better.

If you're in the

market

for a portable

iron, get

one

those. They're cheaper,

faster, and

much more

convenient.

R -E

IIIMINIMIIMIIIMIIIIIIMIll

DEL

eSTAsRcomT4y0

JERROLD CORDLESS

CABLE

VERTERS

/a.

ANY

QUANTITY

Instant channel

recall

Volume control

Programmable to go on at

channels

a particular

channel and

off

Mute control

automatically

Automatic fine tuning

Compatible

with descramblers

JERROLD

CORDLESS

CABLE

CONVERTER

MODEL DRX3-

105/400

$6995

58 channels

Remote

channel

changing

Remote

on/off switch

Remote fine

tuning

JERROLD

CORDED

CABLE

TV CONVERTER

MODEL JRX3

-105

$29.95/

S39.95,6-9

S49.95/1

10up

NI=

'ADD

$5.00

FOR VISA

MASTE CARD

JERROLD

CORDLESS CABLE

CONVERTER

MODEL

DRZ/450

66 channels

Automatic fine tunin

A/B

switch

option

$69.951,.

lot

S79.95 ea

"THE

RABBIT"

VIDEO MULTIPLYING SYSTEM

TR -7000

$51

12 u , L p

í7A

ELECTRONICS

770 Amsterdam Ave

New

York, NY

10025

IT'S

LIKE HAVING A

VCR IN EVERY ROOM

=MIN-MASICA=

CIRCLE

110

FREE

INFORMATION

CARD

SHIPPING CHARGES

For Orders Ada

$25100

$6 50

$100500

$500

-750

$1050

$750

and up $2000

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 107 108

Comments to this Manuals

No comments

Silicon Valley Computer SHUGART 706 User Manual Page 33

Comments to this Manuals