PORTABLE
AUDIO
GENERATOR. Designed
for the audio professional.
Fo r w a r d In n o va
ti
o n s '
CIRClE 26
ON
FREE
INFORM ATION CARD
PAG-l
hand-held port ab le
audio generato r provides a
versatile means for chec k-
ing so u nd
sys
t ems . The
genera
tor
has a varia ble
outpu t up to 1 volt and is
DC decoupled so tha t it
can be used to measure im-
pedan
ce . It can
also
be
used to check capacita nce
and inducta nce . The P
AG
-l
boasts a THD of less than
0.03 % and it swee ps from
18 Hz to 22 .5 kHz in three
co nt i
nuo
us
over
la
pping
ranges. The dial is marked
in V3-octave segments fo r
easy che ck out. It runs on a
9-v
olt
b
att
ery and i s pro -
tec ted to 50 volts DC o r 30
volts AC .
The PAG-l portab le au-
dio ge nera
tor
is $ 139 .-
Forward
Innovations
,
P.O . B ox 9 4 2 9 , S
ant
a
Rosa. CA 95405 . R-E
in
clud
e d ual time base ,
push-butt on switch selec-
tion with vertical and hori-
zontal mod e " se lect " for
fast setup and readout. and
an easy-to-read fro nt-panel
lay o ut . In ad d it io n, t he
P2
840
offer
s a
memo
ry
function and curso r read-
outs to indicate time. am -
plitude
.
frequenc
y.
duty
cycle . and phase shi ft.
The P2840 digital
stor
-
age
osc il
loscope
costs
$
1630
.-
P r o t e k . P.O .
Bo x 5 9 .
Norwood,
NJ
0
76
48
;
Ph
o n e :
2 0 1-
76
7-
72
42
; F a x :
201-767-7343 .
CIRCLE 25 O N
FREE
INFORMATI
ON
CARD
ers a vert ica l reso lution o f
256 dots, a hor izont al reso -
lution of 1024 dots. indicat-
ing memory of 2048 word s.
re
ference
memory
w
ith
sto rage of up to four sig-
nals. and an 8-M Hz effe c-
tive
storage
freque
n
cy
.
Pre/ pos t trigger is at 25%
and 75 % . and there are a
variety of rear panel inter-
con
nec
ts f
or
ext
end
ed
use. Key analog functions
DIGITAL STORAGE OS-
CILLOSCOPE. Featured
func
tions
in t h e Pro t e k
Model P2840
DSO
are 20-
megasample pe r
seco
nd
CMs
/s)
sampling and "Vu-
Wr
ite" c
urso
r CRT rea d-
outs . In ad dit ion, th e 40-
MHz real-tim e
DSO
deliv-
A6iC!
An
ETCHED
eire
uit
board
from
a
Printed
PAGE
in
just
S
Hours
Star
Circuits
P.O
.Box949
17
L
as
Veg
as
,
NV
89
193-49
17
1-800-433-6319
CALL TOL L F REE FOR C.O .D. OR S END CH ECK TO O RDER
. FAST DELIVERY
30 DAY MON EY BA CK GUAR ANTEE (3 FILTE RLIM IT)
•
ATTEN
UATION - 45 dB TYPICAL
•
BANDW
IDTH - 4 MH z AT 5 dB POINT S
•INSERTION LO SS - 2 dB
3for $75 • 10 for$200 •
mix
or
match
TUNING
FOR
MO
DEl
RANGE CHAN NELS PASSaAN O PRICE SHIPPING
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6
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z23 lor 6meterham' 50·300
101
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'on
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Hz !4IA\ 15
181
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50·400
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Hz $30 CHARGES
713 174·216
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Hz 7.8.9.10.11.12.13 50·400MHz $30
The ER-4 PHOTO ETCH KIT gi ves yo u the tool s. ma ter ials and
chem
icals
to
make
your own
printed
cir
cuit
boards. The pat
ent
ed Pos-Neq" proc ess
copies
a
rtwor
k from magazin es li ke this o ne
without
damaging the pag e.
Use the cir
cuit
patt
erns
, tapes and
draft
ing film to make y ou r own 1X
a
rtwo
rk. Or try the Dir ect Et ch " system (also inc luded), to make s
ingle
ci rcu it boa rds
without
artwo rk . The E R-4 is sto cked by many ele
ctroni
c
parts distr ibut ors. or
orde
r d
irect
. pos tpa id.
ER-4 PHOTO ETCH KIT (N J and CA res ide nts add sales ta x) . .. .. $ 38 .00
DATAK'S
COMPLETE
CATALOG lists hun dr ed s o f p rin ted
circ
uit p rod uct s
and art patt erns .Also c ontains dr ytransfe rlett er sheets and e lectro nic tit le
sets f or p rofess io nal lo oki ng co nt rol p ane ls. WRITE FOR IT
NOW!
DATAK Corporation -55 Freeport
Blvd
,Unit 23 -
Sparks,NV 89431
CIRCLE 176 ON FREE INFORMATION CARD
es . LED's. numerical dis-
plays. and potentiometers
for em ulating
control
-ap-
plication i
nputs
and
out
-
put s . The re are
tw
o sol-
derless breadboa rd termi-
nal str ips . one co nnected
to the prototy ping compo-
nents and the other to the
micr ocon troll er po rts and
control lines
-plus
a large
solderless
brea
dboard
.
That
setup
prov ide s fle x-
ibility for
connecting
pro-
tot
ypin
g co
mpo
ne
nts
to
the
microcon
tr
oll
er
lines
and fo r deve loping and de-
buggin
g us
er
-de
s
ign
ed
analog and digital applica-
tion circuits.
Th e R
-5
35
/R
- Wa r e
package
-i
ncluding a 100-
plus-page users guide with
sche matics . boar d layout,
and co nt rol e
xperi
ments
w ith so ftwa re e
xamples-
is available as a kit for
$3
95
or ass em ble d and t est ed
for
$495
.-Rigel
Corpo
-
ration
,
PO
. Box
90040
,
~~~~~~
~~
~~~~~~~~~~~~~
Gainesville. FL 32607.
28
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