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M.B.SLEEPER

Recommend

good batteries

IN AN effort to reduce the first oit

of a radio zp a newcomer in radio

(ten buys inferior batterie. You

know such "saving'. is really wasteful.

Tell your friends who are about to

buy receivers that the best batterie

obtainable will prove to be tha most

economical. Tell them to by Ever-

may Radio Batterie -they last

sans's., longer and, bouse chef are greatly su-

',jot, they give complete

ala..,- :r.f .mot s.uwrM ta

wNATIONAL CARBON COMPANY, fyc

Nov

Yo:rtk.rr

a.r

m,

San Fraliciz roux rwa. w..

Radio Batteries they last /anger

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UV iota

tizt. Una

ar fit ..l me best ont of a net -pet the

:me h.

In aoe puent of the eftenit. nuablty te mme

cant then in other, k ie mod imDmlant in the

tube. They ebukb he genuine RADIOTRONS

-Js The volume

ck+arn.+ -the ntnetnete and the

All,. economy d opm -thwr det.nd m Duan

things-hut firtt A

the Rdu.ens

No nutter what the job el the tube In the ern

time,, Ratioiron te Rt it. You stab deny, find

- it make. a dirlerence ilyoudemand.Radiown

- ad for it by name

An on the tube for the

word Radiaron and the RCA malt.

Radio Co-ponaton ot America

Radiotr

PRODUCED ONLY BY P.CA.

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RADIO ENGINEERING

Fifth Year

Eddrd by M. R SLEEPER

A..n Lu F?ur. Mind A. Lh?udi

- Contents

May,

925

1

Vol. V. No. 5

Page

Acme Cabot Circuit Receiver

235

Short Cuts to Successful Soldering

242

The Silver -Marshall Receiver

243

Bremer-Tully Nameless Receiver, Part 2

248

Editorial Page

251

Speeding up Set Assembly

252

Working Data on Standard Radio Products

254

Among the Manufacturers

256

Manufacturers & Designers' Data on Condensers

A

Grid Leak Resistance Elements

256A

Ideas for a Two-Step Amplifier

257

Thermo-Ammeters for R. F. Tests

262

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P." 4411#11

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$59.2,.

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