
New
Products
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from
DC
to
30
kHz
with
negligible
switching
loss.
No
external
power
(other
than
audio power
being
distributed)
is
required
for
operation.
Power
han-
dling
capability
is
100
watts
maximum
into
a
4-
ohm
load.
User
net price
for
Model
642
or
641 is
$49.50
from
Switchcraft,
Inc.,
5555
Elston
Ave.,
Chicago,
Ill.
60630.
Write
for
details
and
address
of
nearest
distributor.
Hobbyists'
Solid -State
Kits
At
popular
prices,
the
do-
it- yourselfer
can
now
get
hold
of
a wide
variety
of
blister-
packaged
electronic
kits
as follows:
EC
-100
Siren
Kit,
$4.95;
EC
-101
Burglar
Alarm
Kit,
$6.95;
EC -102
Fire
Alarm
Kit,
$6.95;
EC
-200
Intercom
Kit,
$3.95;
EC -300
Audio
Amplifier
Kit,
$4.95:
EC
-400
Metronome
Kit, $3.95;
EC
-500
Tremolo
Kit,
$8.95:
EC
-600
Light
Flasher
Kit,
$3.95;
EC
-700
"Mystifier"
Kit,
$4.95;
EC
-800
Photocell
Nite
Lite
Kit,
$4.95;
EC -900
Power
Supply
Kit,
$7.95;
EC
-1000
Code
Oscillator
Kit,
$2.50.
Shown
is EC
-1000.
From
EICO
Electronic
Instru-
ment
Co.,
Inc.,
131 -01
39th
Ave.,
Flushing,
N.Y.
11352.
Each
kit
or group
of
kits
may
be the
heart
of
your
next home
-brew
project.
CRAFT
125D
Flip
Over Your
QSL's
Luxury
Model
(SD)
Rotary
Card
Holder
comes
with
200
see-
through
Mylar
binders
to
hold
400
QSL
cards.
You
have
more?
Relax,
you
can
add
more
binders
to
hold
up
to
600
cards
max.
The
luxury
model
has
knobs
and
base
of
solid
gun-
stock walnut
and
a
2 -inch
tapered
Plexiglas
frame
and
comes
assembled
in
a gift box.
Price
-$24.35
18
postpaid.
The
Standard
(S)
model
has
plastic
knobs
and
base,
chrome
frame,
has
Mylar
binders
for
160
cards,
comes
knocked
-down
for
$9.95.
Nordlund
Radio
Products,
7635
W.
Irving
Park
Rd.,
Chicago,
III.
60634.
Be
Your
Own TV
Producer
A
new
closed-
circuit
TV
camera,
model
SS
-310.
using
less
space
than
a
telephone,
is priced
in the
hobbyist
range.
Resolution
at
center
of picture
i3
350
horizontal
lines
or better
with
monitors,
and
300
lines
or
better
with
conventional
receivers.
The
camera
circuit
contains
19
silicon
transistors,
2
germanium
transistors,
and
14
diodes.
A clear
pic-
ture
can
be
obtained
with
a
minimum
amount
of
illumination,
using
f1.4
lens
supplied
with
the
camera.
The
SS -310
has
an
automatic
electronic
circuit
that
instantly
compensates
for wide
and
sudden
lighting
changes,
assuring
a clear
picture
under
virtually
all light
conditions.
Plug
-in
modu-
lar
circuit
boards
facilitate
replacements
with
a
minimum
of
downtime.
User price
of the
SS
-310
with
f1.4
lens,
25
feet
of
coaxial
cable
with
con-
nectors,
is
$289.95.
Maker
is
Squires-
Sanders,
Inc.,
Martinsville
Rd..
Millington,
N. J.
07946.
Transistorized
Doorman
This
pocket
-sized garage
-door
controller,
the
Electro-Lift,
opens,
closes,
locks
the garage
door
RMIO
-TV
EXPERIMENTER
-
'RADIO-TV
0
-
RIGMAROLE
1
-
WHITE'S
2
-
Canadian
2
-
Television
2
-
Stations
2
-
- Brit
3
-
- R. Martinique
3
-
R -TV Moroc:o
4
-
- Sawt al
5
-
- R. Australia
5
-
LIBRARY
6
-
Future."
7
-
EDI (Elec
7
-
.,1,1,,,,11
8
-
Tape Sings
9
-
- United
9
-
- R. Budapest Accra
9
-
:.e.:
10
-
Amazing"
11
-
W. SAMS
12
-
Synchronizer
13
-
Crystal
13
-
LAFAYETTE
14
-
\:11,!
15
-
-RADIO WITH NRI
16
-
GIVES YOU
17
-
- nothing
18
-
GIMMICKS
19
-
New Products
20
-
'/
21
-
Products
22
-
TV-RADIO
23
-
Electronic
25
-
Equipment
25
-
_ reduced make
26
-
Station
27
-
-If you
28
-
-C. B., Seattle, Wash
29
-
-R. K.
30
-
Ask Me
31
-
S'
32
-
Another
33
-
-A. A.
33
-
Don't
34
-
-plus and Filament
35
-
C>>i_
36
-
COURSES
37
-
-R. M.
38
-
... a fabulous
39
-
- 11/2 vdc
40
-
ARV- MARCH
41
-
All One
42
-
Honorary
43
-
A photorecorder
44
-
For the new
45
-
/FM table
46
-
-in. speak
47
-
-in. hole
47
-
RADIO-TV
48
-
You won't
49
-
-if you
50
-
CB operator
51
-
10 meters)
52
-
It's
53
-
-a task
54
-
MARCH, 1967
56
-
-it's
57
-
-and solder
58
-
1,000 OHMS
59
-
Personal
60
-
EQUALIZING
61
-
Insulates
62
-
EXPERIMENTER
63
-
For example
64
-
Exclusive
65
-
To Do?
66
-
-MARCH
67
-
INSTANT
68
-
"NEW
69
-
TNE°NEIIV
71
-
MOD"
71
-
71 in. long
72
-
(LEM) when they land
73
-
-a Magnecord
74
-
Features
75
-
(monitoring)
75
-
(auto -stop)
75
-
Antenna
77
-
FEBRUARY
78
-
-circuit is for
79
-
2' /a
80
-
SHOPPING
81
-
`i' J7
82
-
TAPE-GLIDE
83
-
'""
84
-
-3- transistor
85
-
TAPE -SLIDE
86
-
-"
87
-
I yawned
88
-
31 meters
88
-
Of What
89
-
$119"
89
-
From Heath
90
-
Receiver
91
-
STEP UP
92
-
"N"
92
-
Propagation
93
-
/March 1967
93
-
1%), the question is
94
-
Ford is
95
-
-are the
96
-
Sound -Box -On
97
-
F la. I000d
99
-
910 -329.5
100
-
1 210 -247.8
102
-
-making
103
-
1310 -228.9
105
-
1340 -223.7
105
-
!1 C. 1000
107
-
Will Jacksonville
109
-
Frequency
110
-
Commercial
111
-
IO CND-TV
112
-
I Location C.L
113
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