Epson L90P - TM Two-color Thermal Line Printer Uživatelský manuál stáhnout pdf (Strana 100)

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OPERATION

ASSIST

Through

this column we try

to make

possible

for

readers

needing

information

outdated,

obscure, and

unusual

radio -

electronics

gear

to get help from

other

P.E. readers.

Here's

how it

works:

Check

the list below.

If you can

help anyone

with

schematic

other

information,

write

him

directly -he'll

appreciate

it. If you

need

help,

send a postcard

to Operation

Assist,

POPULAR ELECTRONICS,

One

Park

Avenue,

New

York, N.Y.

10016.

Give

maker's name

and

model 'number

of the

unit.

you

don't

know both'

the maker's

name

and

the model number,

give year of

manufacture,

bands

covered,

tubes used,

etc.

State specifically

what you

want, i.e.,

schematic,

source for parts,

etc. Be sure

to print or

type everything

legibly, includ-

ing your

name and

address.

not

send

an individual

postcard

for each request;

list

all requests

on one

postcard.

Because

Zoe

get

so many inquiries, none

them

can

be acknowledged.

POPULAR ELECTRONICS

reserves

the right

to publish only those

items

not available

from normal

sources.

E.H. Scott

Radio Labs

Model

SLR

-12 -B

receiver.

Sche-

matic and

instruction manual

needed.

(Mitchell

Kass -

off, 252 -61 Leith

Rd., Little Neck,

N.Y.

11362)

Zenith

Model

10 -S599

receiver.

Schematic,

parts

list,

and

service information

needed.

(Bill

Brideson,

6821

Duke Dr.,

Alexandria,

Va. 22307)

Slytron

service

oscilloscope

Model

405,

Type 405. Manu-

facturer

and address

wanted.

E.V.

Way,

2317 Treasure

St.,

New

Orleans,

La.

70122)

Heathkit

VTVM

Model

VI and

5" oscilloscope

Model

0 -9.

Operating

instructions

and schematics

needed. (Robert

A. Muylaert,

20728 Lee

Court, Crosse

Pointe

Woods,

Mieti.

48236)

Radio Craftsman

Model

-17

"Xophonic"

time -delay

audio

amplifier. Schematic and manual

needed.

(A.

Edward

Terpening,

838 W. Darlington

Rd.,

Tarpon

Springs, Fla.

33589)

Precision

Model

660 tube and transistor

tester. Sche-

matic

and operating instructions

for

transistor tester

portion

needed.

(Edward L.

Robinson, Box

55, Green-

wood

Sta., Wakefield, Mass.

018801

Grommes

Custom Model 200 PG audio

amplifier.

Sche-

matic, operating manual,

and /or

source

of parts

needed.

¡Richard

G. Brough, Hyde

School, Bath, Me. (115311,

Phileo

Model 40 -165 receiver.

Schematic

and alignment

data needed.

I J.E.

McDaniel,

4317

NW 52, Oklahoma

City, Okla.

73112,

Crosley

Model

716 BCE /three

-band SW

receiver (circa

1938

-1910).

Schematic

needed. ,Leslie

Reeves, 521

Woodlawn

Ave.,

Calhoun,

Ga. 30701)

Hallicrafters

Model

S -38

receiver. Schematic

and

man-

ual

needed. ¡Gary

Nuthals,

1155 Mather

St.,

Green Bay,

Wisc.

51303,

Sylvania

Model 220

tube tester.

Roll chart -any

date,

any issue- needed. (David

H. Lawrence,

603 Thompson

St., Charleston, W. Va. 25311 )

Boeing

Analog

computer function

generator (custom

made,

circa.

1956, with 10

generators mounted .side

-by-

side in rack pane] with

plug

-in

pot/diode

boards, em-

ploying

six tubes

/board,.

Schematics

and operating

in-

structions needled. ¡Kansas

Technical

Institute, Com-

puter Dept.,

Salina, Kan.

)

Patented components

... a 30 -year reputation .. for innova-

tive design ,

a consistently

creative approach to sound

reproduction

...

this

is where

it all comes together, in the

creation

of extraordinary

speakers

such

as the 312.

A glance

at its specifications will tell

you the 312 is an ex-

ceptionally fine

reproducer. Unfortunately, they

won't

be-

gin to

show you how

extraordinarily pleasing

the

sound is

that flows

from

it. You

must discover that

for

yourself,

listening.

it's not

inexpensive.

Still,

it's only

about

half

what

you'd

expect to pay. Hear the 312

soon. Find out why

we call it: "the

speaker your other components

will be

proud

of."

This is

where it

all

comes

together

"Listen

.. .

University

Sounds

Better."

Specifications: Model 312 3 -way 12"

Diffaxial

Speaker.

Frequency

response:

28 to well

over

40,000 Hz.

Patented

Sphericon

tweeter

is flat

within

2 db to 22,000 Hz. Power rating:

35 watts

integrated

program

material.

Impedance:

8 -16

ohms. Crossover: 1000 Hz (mechanical). 3000 Hz

(electrical).

Dimensions:

13" overall dia 66/8"

deep.

Mounting: Front

rear baffle. Special

Features: Rigid,

die

-cast

frame. Wide -angle dis-

persion

by patented Sphericon

Super

Tweeter

and

exclusive

Diffusicone

principle. Rigid cup

baffle

(eliminates tweeter- woofer

interference).

High

compliance suspension with University's

exclusive Critical

Edge

Damping.

UNIVERSITY'

SOUND

A DIVISION OF

LTV LING ALTEC.

INC.

Oso 26105,

Oklahoma

Cty,

Ckia.

73126

CIRCLE NO. 39

READER SERVICE PAGE

110 POPULAR

ELECTRONICS

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