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B&K Dyna-Quik Tube Tester
November 1957 Radio-Electronics Article

November 1957 Radio-Electronics

November 1957 Radio-Electronics Cover - RF Cafe[Table of Contents]

Wax nostalgic about and learn from the history of early electronics. See articles from Radio-Electronics, published 1930-1988. All copyrights hereby acknowledged.

As mentioned a while back, in the 1980s while working at Westinghouse Oceanic Davison in Annapolis, Maryland, an engineer who worked for knew I had recently obtained a 1941 Crosley Model 03CB console style radio. He generously gave me his B&K Dyna−Quik Model 650 Vacuum Tube Tester which, although formerly a very active Amateur radio operator (since boyhood), he didn't need it anymore. The Model 650 is a very comprehensive portable tester used at one time by many professional radio and television servicemen. My tester also had the Model 510 Accessory Socket Panel that added an ability to test 50% more tube types. An indication that it is one of the later model tube testers is the inclusion of a transistor testing socket. Unlike testing vacuum tubes, all of which plugged into sockets to make them easily replaceable, testing a transistor or solid state diode required unsoldering or clipping the device out of the circuit and then soldering back in either the verified still good device or a replacement. It was one of the reasons electronics servicing people eschewed the adoption of semiconductors. That, and a lot of money was made by the sales of replacement tubes, with a typical profit of a dollar or so per tube. The $169.95 price in 1957 is the equivalent of about $1,720 in 2022.

B&K Dyna-Quik Tube Tester Ad

B&K Dyna-Quik Tube Tester, November 1957 Radio-Electronics - RF CafeMake More Money Faster with B&K Laboratory-Accurate Dyna-Quik

Cut Testing Time in Half - Double Tube Sales

Measures true dynamic mutual conductance with laboratory accuracy under actual operating conditions right in the home. Makes complete tube test in seconds. Quickly detects weak or inoperative tubes. Shows customer the true condition and life expectancy of the tubes and sells more tubes right on the spot. Cuts servicing time, saves costly call-backs, wins customer confidence, and brings more profit. One extra tube sale on each of 5 calls a day pays for the Dyna-Quik in a few weeks.

See your B & K Distributor, or write for Bulletin 500-650-E

New Model 650

Today's Fastest, Most Complete, Portable

Dynamic Mutual Conductance Tube & Transistor Tester

Offers New Features-More Features! Checks over 99% of the tubes most widely used in television receivers, plus popular home and portable radio tubes. Tests over 500 tube types. Lists over 125 tube types, with settings, on socket panels for maximum operating speed. Complete listing in fast telephone-index type selector. Includes 16 spare sockets and sufficient filament voltages for future new tube types. Phosphor bronze socket contacts. Tests each section of multiple tubes separately for Gm-Shorts-Grid Emission-Gas Content-and Life. Gives instantaneous Heater Continuity check. Shows tube condition on "Good-Bad" scale and in micromhos. Special bridge assures automatic line compensation. Simple to operate. No multiple switching-No roll chart. Includes pin straighteners. Transistor Tester checks junction, point contact and barrier transistors, germanium and silicon diodes, selenium and silicon rectifiers. Net, $169.95

Famous Model 500

World's Fastest Selling Portable

Dynamic Mutual Conductance Tube Tester

This is the B & K quick-check tube tester that has revolutionized TV set servicing! Servicemen* say: "Best tube tester I've ever owned for speed and dependability!" "Wonderful instrument. Makes money!" "Paid for itself several times. Really indispensable!" "Have two ... one for the shop and one for house calls!" "Adds income and saves unprofitable call-backs!" That is why thousands of the Model 500 are now in profitable use all over the nation. Tests tubes for Shorts, Grid Emission, Gas Content, Leakage, and Dynamic Mutual Conductance - in a matter of seconds. Life Test detects tubes with short life expectancy. Shows tube condition on "Good-Bad" scale and in micromhos. One switch tests everything. No multiple switching-No roll chart. Special bridge maintains automatic line compensation. 7-pin and 9-pin straighteners.

Net, $109.95

B & K Manufacturing Co.

3726 N. Southport Ave. • Chicago 13, Illinois

Canada: Atlas Radio Corp. 50 Wingold, Toronto 10, Ont.

Export: Empire Exporters, 439 Broadway, New York 13, N. Y.

* Names on request

 

 

Posted April 22, 2022

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RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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