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RADIO BROADCAST ADVERTISER
Giblin-Remler Cf\Jl C
INDUCTANCE V-'Vyll-iO
Type and Number of Turns, Mounted
Price, Mounted
Type and Number of 1 Turns, Unmounted
RG 20M
1
50
RG 20U
RG 25M
1
50
RG 25U
RG 35M
1
50
RG 35U
RG 50M
1
60
RG 50U
RG 75M
1
65
RG 75U
RG 109M
1
70
RG lOOU
RG 150M
1
.75
RG 150U
RG 200M
i
.80
RG 200U
RG 250M
1
.90
RG 25CU
RG 309M
2
00
RG 300U
RG 400M
2
.10
RG 400U
RG 500M
2
30
RG 500U
RG 600M
2
49
RG 600U
RG 750M
2
65
RG 750U
RG lOOOM
3
40
RGICOOU
RG 1250M
3
80
RG125CU
RG 1500M
4
.40
RG)500U
.70 .70 .70 .80 .85 .90
.95 1.00 1.10 1.20 1.30 1.50
1.60 1.85 2.50 2.90 3.f0
i h
.030 .041 .083 .169 .377 .666
1.503 2.68 4.20 6.11 11.04 17.50
29.2 39.0 71.6 108.0 159.8
si
5S„
39 47 87 114 163 217
281 374 424 494 618 747
1024 1249 1620 1930 2300
V I u
■ c"^
14.3 15.2 25.4 21.6 19.8 19.9
14.8 14.7 12.1 11.2 9.7 9.0
10.1 11.3 10.3 9.7 9.3
Wave Length Range in Meters using Condenser of .001 max. and .0004 mfd
Min.
63 75 128 185 266 358
512 690 860 1030 1380 1730
2260 2660 3570 4380 5300
M,
ax.
334 389 550 785 1170 1550
2320 3110 3880 4680 6300 7900
10250 11850 16000 19700 23800
High Frequency Resistance in Ohms at Wave Length Show
200 50S 1000 2000
1000 69.8
2U00
1.1
1.5 3.5
28.3 80.3
2000 23.8 50.6 87.5 141
5800 111
4.4 12.1 26.8
5000 7.1 12.5 19.9 29.3 54.6 93.1
10000 43.8 64 123
6.2 12.6 10000
13.8 22.3 34.9 20000
This table compiled by Laboratory,
Robert F. Field of Cruft High Tension Electrical Harvard University, Cambridge, Mass.
Maximum Inductance and Minimum Distributed Capacity
The Ideal Loading Coil
These new inductance coils will increase the wavelength range of your short wave receiving set.
There is nothing more fascinating than the reception of radio messages from high-power stations located thousands of miles away. These stations use wavelengths between 1000 and 25,000 meters. This is far above the receiving range of the average receiver designed for amateur broadcast reception.
Inserting Giblin-Remler Coils of the proper values (determined from the table shown on this page) and shunted by a variable condenser, in series with the antenna circuit and the secondary circuit of your receiver, will increase its wavelength range any desired amount.
The Grtblin-Remler Coil makes possible the reception of high-power, long wave foreign stations, as well as time signals, press and weather reports from various naval stations throughout the United States.
Remler Radio Mfg. Co.
E. T. CUNNINGHAM, General Manager 248 First Street, San Francisco, Calif. 154 W. Lake Street, Chicago, 111.