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RADIO BROADCAST ADVERTISER
71
4f Raytheon^ The New Knapp "A'Tower Kit
TWO PIONEER
TELEVISION
ACCESSORIES
The Raytheon Laboratories invite correspondence from both engineers and amateurs in regard to these two accessories now in successful operation.
Raytheon Kino-Lamp is the first television-reception tube developed to work on all systems. Raytheon Foto-Cell, an extra sensitive broadcasting tube, is supplied in either hard vacuum or gaS'filled types.
RAYTHEON MFG. CO.
Kendall Square Bldg., Cambridge, Mass.
4f Raytheon\ \ F<>lp (M ^
/Vm/T OTt f*§Tt m m/\f This is the frAn power after you have as
If t ^XCXC^J iBS sembled it. A professional job! Operates on
/-^ # -m ^^«K ^ i 105 to 120 volts, SO to 60 cycles AC. Supplies
i dig" 1 g ^93 i^Sfe. rippleless DC current for operating any set
Ul'l'C'If'l/ tt&TgKS, using Standard 5 or 6 volt tubes and potcer
AS tSbl tubes.
Absolutely DryGreatly Improved — and at a Lower Price New Money -Making Plan for Set-Builders
The new Knapp "A" Power has all of the features of the old modelmagic silence — absolutely dry — "B" Eliminator receptacle — voltage regulator— complete, tooled part kit, etc., etc., and also eight new improvements which make it the finest "A" Power ever put out.
Compare the appearance, read the improvements — and remember that the price has been reduced !
The Only "A" Power Adaptable to Short Wave, Super-Heterodyne and Television Reception
The Knapp "A" because of its superior filter system and the special Elkon rectifier is so silent and so steady that it functions perfectly.
The 8 Improvements
1. Larger Filter System — 3 Elkon
Condensers instead of 2. Ideal for Super-Hets, Short Wave sets and Television.
2. Improved Choke Coils
3. Pendant Switch Controlling "A",
"B" Eliminator and Set
4. Dial for regulating voltage
5. Celeron Front Panel
6. Baked finish
7. Heavier gauge metal cover
8. DieCast Base Plateinstead of wood
COMPLETE KIT — EASILY ASSEMBLED
The New Knapp Kit is a tooled job — the parts seem to fall into place.
Every hole is driUed — aU you do is put the screws and nuts in place and connect a few wires. Just follow instruction sheet. No extras to buy.
THE SET-BLILDER TAKEN CARE OF
Regardless of what the established trade may think about it — I am going to continue to give you the maximum discounts. The coupon will bring you the f uU details of both the new "A" Power and the special discounts to set-builders.
David W. Knapp, Pres.
KNAPP ELECTRIC, Inc., Port Chester, N. Y.
— Div. P. R. Mallory & Co., Inc. —
Mr. David W. Knapp, President,
KNAPP ELECTRIC, Inc.,
Dept. K-20 850 Madfeon Ave., N. Y. C
Kindly send me complete Information on the Knapp "A" Power and your special discounts for Set-Builders.
Name
Address. .