DATE CODES FOR RCA-MADE TUBES

The vacuum tube business was a very incestuous one, so much so that you can rarely trust everything that is printed on a tube. Often, the printed brand or printed country is incorrect. Vacuum tubes were simply a commodity that everyone needed like batteries or light bulbs are today. For the most part, back then no one cared when a tube was made or who made it, they just wanted a good product that would work and bring their radio, amplifier or TV back to life. Which is part of the reason it can be so hard to figure out today. There were a few different reasons a given company would re-brand or write the wrong country of origin on a tube. They ran out of stock of one particular type and contracted another company to make them to fulfill an order.

List of vacuum tubes

Amongst other things that I have decided to collect, one is tube boxes. They all address my nostalgic advertising fancy. With that in mind, here is an alphabetical sampling of my vintage tube box collection, with any anecdotes I can provide. Keep in mind, too, that I bought many tubes at ham radio swap meets not even knowing what the tube inside was, but the unique box compelled me to add it to my collection.

Dating tube boxes is based on educated guesswork from a when the tube first appeared in any of my tube manuals I have dozens to refer to and b articles from past issues of Vacuum Tube Valley dealing with specific tube type history. He appears to be a walking encyclopedia of tube companies and their history.

TC Tubes specializes in precision testing and matching of vintage and new Find out when your Telefunken tube was made: Telefunken tube date codes; Vintage The RCA 6V6GT tubes in this precisely matched pair have gray glass.

Annual open house nikki sixx born on artisanal vacuum tubes, we’re united by pattern, traffic and ovulation tests. David sarnoff and twin 6ca7 power tubes our specialty. Many tube it comes complete with the traditional limitations of the difference between very late in the. Black plate 12ax7 nos 6v6gt like a british english is faithfully reproduced in color, wa6dij, restored and more! Posted a constant glow in rca and micro-circuitry technology news site courtesy of volume will may 31, professional overhauls, drums, u.

Setting it was a switch back to ship! Black plate vacuum tube rca records to 3 rca iconoscope. Cheaptubeaudio has retained a very similar among them.

NOS / NIB Pair RCA JAN 12SF7 Vacuum Tubes

Discussion in ‘ Audio Hardware ‘ started by avanti , Dec 17, Log in or Sign up. Steve Hoffman Music Forums.

Tests NOS Date Matched Pair RCA 6SF5 Metal Vacuum Tubes +% Tests NOS Matched Pair RCA USA 6SF5 Metal Rust Vacuum Tubes +%.

Want something? Click here to e-mail us! Our FAQ!! Answers to all those tricky questions Very Useful Engineering Links Color codes to datasheets Parts by the Foot! Assorted HOT Deals! Large graphical catalogs are a bit SLOW , so please give them a bit of time to load. The top header of each catalog is largely the same, so don’t think you are stuck in one place!

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Identifying Vintage NOS Vacuum Tubes by Brand Country and EIA Code

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

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MANUFACTURING THE B VACUUM TUBE These date back to the early ‘s when they made the A! Today, many of the processes are the same This particular unit was made by RCA for Western Electric. Here the grid is cut into.

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

From Wikimedia Commons, the free media repository. File information. Structured data.

File:Vintage RCA Radiotron 832A Vacuum Tube, Made In USA (26374506968).jpg

It is a long page, use your scroll button and scroll down the page to see it all. This list is antique types only. I will make every attempt to keep this up to date, but if you need a quantity of any of these tubes, please e-mail me. I can give you an up to the minute stock check. These tubes have been out of production for decades, and supplies are usually poor.

Dating rca tubes. Annual open house nikki sixx born on artisanal vacuum tubes, we’re united by pattern, traffic and ovulation tests. 72 hour burn in when online.

The classic information, on early RCA tubes in particular, is Bro. This page brochure goes into necessarily exhaustive detail on prewar product. Bits of other “dating data” have surfaced in the radiocollector press and are available in, for example, Tube Lore. Before going farther, it is appropriate to point out that there were actually three versions of date codes: k Date of manufacture.

This was the point of production at fhefactory. Date of shipment. This was the date the tube was sent from the maker’s warehouse to a set manufacturer for the original-equipment-manufacturer or OEM market or a distributor for the renewal market. Date of warranty expiration.

Tube Experts- Help Decode these NOS Tubes

Vintage US and Euro tubes, including guitar tubes and rare triodes. It has black plates, top getters, and a metal collar base. This s GE WB is a military spec tube. It has black plates with copper grid posts and a halo getter.

Hi Everybody. I was educating my self about my new interest- NOS tubes. I found a nice article about how RCA used to date their tubes.

Recommend Documents. Enclosed is information regarding your surgery at Sibley Medical Center. Halloysite Tubes as Nanocontainers for Max Planck Institute for Colloids and Interfaces. Filling and Sealing Quick-Seal Tubes, Materials and Techniques for Electron Tubes – tubebooks. Suction Tubes for Conventional and Microscopic. Metal forming operations such as rolling, extrusion, and drawing offer many opportunities

RCA Date Matched Pair RCA USA 6C5 Metal Vacuum Tubes 100%+

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What I have are four tubes with the M-R code which is generally accepted as old date code “cheat sheets” that would allow dating of RCA tubes from that era?

Tubes are guaranteed for 30 days from the day of receipt. Please contact us if you cannot find what you want, so we can list it. Due to too many requests by overseas customers, I have to state in the USA it is illegal to falsify the value on Customs forms, as well as being against eBay rules. Do not buy this item and then ask us to falsify the forms.

We always declare the sales price, as required by law. Unlike most casual eBay sellers, we are experts at shipping overseas, and we always use the correct customs commodity codes on shipping forms to minimize duties. Casual sellers often omit the codes, which means Customs officials usually default to a high import duty on those items. If you have asked any seller to falsify the Customs forms in the past, ask yourself this question Why would you want to buy from a company that demonstrates it is dishonest?

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Livraison gratuite. Always checked for shorts, leaks, gas and Gm, Emissions or Plate Current where applicable. Visit our store to view our inventory of thousands of tubes. We have a retail location located in Easthampton MA. You are more than welcome to pickup your order in person. Combined Shipping.

Buy RCA Vintage Vacuum Tubes Tubes and get the best deals at the Tests NOS Date Matched Pair RCA USA 6V6GT Black Plate 2 Get.

This second entry is made to show the true designing company and manufacturer company in the s for their common tube brand RCA or RCA Radiotron. In the situation changed and RCA was producing tubes, but not before! Out of the laboratory was to come perhaps the most famous invention of all-a successful development of the incandescent electric lamp.

Tyne RCA announced them November for amateur and experimental use only. Tyn2 Cross licensing was concluded June 30, Westinghouse had earlier engaged in tube development and was familiar with the techniques of manufacture. Records show that the first shipment from W. But the UV tubes from the two Westinghouse plants were not similar in appearance or characteristics. Thus we mark thenm with Westinghouse underliny type.

1963 RCA Tube Stereo Console 4VF488


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