Epson L90P - TM Two-color Thermal Line Printer Manual de usuario descargar pdf (Pagina 20)

Additional

information

on products cov-

ered in

this section is

available

from

the

manufacturers.

Each new product

identified

by a code number.

To obtain

further details

any

of them,

simply

fill

in and

mail

the coupon

on page

15 or

115.

BOOKSHELF

SPEAKER

SYSTEM

Dynaco. Inc.,

recently

announced the

avail-

ability

of its first

speaker

system,

designated

the Model

A -25.

This

bookshelf

system em-

ploys

aperiodic de-

sign, utilizing

novel

acoustic impedance

sys-

tem to

provide

the

effect

variable cabinet

vol-

ume.

The

aperiodic de-

sign

said

to improve

speaker damping

mark-

edly,

thus contributing

improved low -fre-

quency transient

re-

sponse and yielding

tighter, better defined

bass, with effective

cone

motion

control

down

d.c.

smoother

impedance curve and es-

sentially

resistive load characteristics pro-

vide improved coupling between amplifier

and

speaker

system in

addition

to more ef-

ficient

power transfer. Technical specifica-

tions:

8 -ohm

impedance;

10"

extended

excur-

sion

woofer

and non -rigid hemispherical

tweeter with

1500

-Hz

noninductive crossover

network; maximum

3% THD

above 50

with

constant

-watt input;

five

-position

tweeter level control.

Circle

No. 77 on Reader Service

Page 15 or 115

KIT -BUILDER "CUSTOM" CABINETS

Bell Educational Laboratories

has

developed

a new line

of "custom"

cabinets

that

are

ideally

suited to

complement home

-brew

projects. Trademarked

under the name

"FLEXICAB,"

each

cab-

inet consists

of six

pan-

els and 12

"vise-

grip"

slides.

The

panels are

rugged 26 -gauge vinyl -

clad

steel

plates,

avail-

able with either walnut

wood

grain

black

leather

finishes;

front

panels are either

brushed

brass or chrome

finish.

The

FLEXICAB

packaged

with a

set

of pressure-

sensitive

labels which can be

used

identify

controls

and functions. The

cabinets are

available in

three sizes:

3" X

4 "; 3"

6 "; and 3"

6" X

9 ".

Each

can be assembled

in minutes simply by join-

ing

the panels

with the

sides,

thus

eliminat-

ing the need

for special hand

tools,

screws,

and adhesives.

Circle

No.

on Reader

Service Page 15 or 115

CASSETTE STEREO

TAPE SYSTEM

Four -track

stereo playback

and two

-track

monaural

record

features are

offered at mod-

est cost in

the Model RK -200

mobile cassette

stereo tape

system

now being offered

Lafayette

Radio

Electronics. The

sys-

tem

can be operated

on any

12 -volt d.c.

system,

whether

positive

negative

ground. It

employs a

single

lever

control for

all tape modes, including start, stop,

fast

forward,

and rewind.

stereo

balance con-

trol

also provided,

additión

to a record/

safety button

and

separate

volume and tone

controls.

Maximum record

/play

time

is 120

minutes.

The

system

includes a

60-

minute

tape cassette, remote- control stop

/start

microphone

with spiral retractable cord, and

adjustable gimbal mounting bracket.

Circle

No. 79 on Reader Service Page 15

115

TUBE TESTER

Seco

Electronics

Corporation's Model

88A

tube tester

will

test

both

color and mono-

chrome

picture tubes as well as evaluate

nuvistors, novars, compactrons,

decals, mag-

novals, and

all 7 -, 8 -,

and

9 -pin tubes. Test volt-

ages

not

exceed

volts d.c.

22 volts a.c.,

and current

compara-

tively

low.

Amplified

meter

readings of

test

information

detect culls

and problem

tubes with

sensitivity not other-

wise

possible with a

di-

rect meter

circuit and

neon

lamps. The

Model 88A utilizes "grid

circuit

tests" to

make up to eleven simultaneous

checks

for

leakage, shorts,

and grid emission

or current

reversal

-not to mention

tube merit

and fila-

ment continuity.

Setup

data for multiple

tests

are arranged

on handy

flip -over cards.

The card

system

is automatically

kept cur-

rent

free of

charge

for registered

owners.

Circle

No. BO on

Reader Service

Page 15 or

115

BATTERY -BOOST

REGULATOR

FOR CB

The

Model

BER -1216 "Battery-Boost

Regula-

tor"

made by

Mark Products

Company is

d.c.

regulator

designed to

provide constant

voltage

output

for

mobile CB and

Business

Band

transceivers.

This

all -solid -state

de-

vice is

said

to provide

optimum power out-

put on

"transmit"

and improved receiver

sensitivity.

Technical

specifications:

11 -16

volts

input (preset

at factory for 15.5

volts

but

can be

field adjusted

provide

outputs

POPULAR

ELECTRONICS

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 115 116

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