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RADIO BROADCAST ADVERTISER
NATIONAL
CHELSEA
LEADERSHIP ^QUALITY /'COMPLETE LINE
THE IMPORTANCE OF
VARIABLE CONDENSERS
★
NEARLY all modern receiving circuits contain one or more variable condensers. Upon the performance of these vital parts depends largely the degree of success of your receiving set. It is easy to produce condensers which look efficient, but effectiveness in these parts is much more than skin deep.
CHELSEA VARIABLE CONDENSERS
Enable any receiving circuit to give its best. Plates are die cast into solid units giving permanence of electrical and mechanical connections and rigidity at all times. This is the only sure method of construction which avoids corrosion and insures low resistance. Insulating material is the best obtainable — genuine bakelite — molded by Chelsea. This insures low electrical losses. Large brass self-aligning bearings eliminate all play and maintain the proper air gap at all times. Plates are of heavy stock of the proper design. These are some of the reasons why you should use Chelsea condensers to achieve the results you hope for.
Made in eleven styles, they form a complete line in which there is the proper type and capacity for any receiving circuit.
Prices from $2.50 to $6.75
OTHER QUALITY CHELSEA PARTS:
Variometer with Vernier §8.00 Rheostats $1.00 and $1.40
Variocouplers $8.00 Tube Sockets 50 and .75
Audio Transformers $3.75 and $4.50 Dials 40, .45, and .50
Write to Department 6 for our large catalogue, which illustrates and describes the complete line of
Chelsea Receiving Sets and Parts
National Chelsea Radio Corp.
739 Boy I st on St., Boston, Mass.
Tested and approved by Radio Broadcast ^