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Safety

This website discusses repair of electronic items. Electrical voltages are present and represent a danger. Repairs should only be attempted by a qualified technician. We do not provide free personalized troubleshooting.
All content is the opinion of the author and not intended as advice.

Identifying Sylvania-manufactured tubes

Tubes / By Bob

The article provides examples of Sylvania-manufactured tubes. Sylvania was probably the most prolific American tube manufacturer, and their tubes were found packaged by many well-known USA name brands. Among the EIA codes that you will find on Sylvania-manufactured tubes are 312 and 722. Here are photographs to illustrate the wide diversity of companies that Sylvania …

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Who really manufactured your Tube?

Blog, Tubes / By Bob

It is quite common to find tubes that have a “brand name” printed on them, but were actually manufactured by a different company. Yes, you can easily find “RCA” tubes made in a Sylvania factory, “GE” or “RCA” tubes manufactured in a Tung-Sol plant, etc. So how do you know which company actually manufactured your …

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Sencore Mighty Mite TC28, TC162, TC154

Tube Testers / By Bob

Sencore Mighty Mite solid-state tube testers (TC28 Hybrider, TC162, and TC154) are durable, easy-to-use, and test a wide variety of modern tubes (including modern sweep tubes such as #8950). They were VERY popular among old-timer technicians. For most people, they are a very good choice. Regardless of model, all the Mighty Mite solid-state models use …

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Corvette problem – Service ASR

Automotive, Blog / By Bob

[Update: May 24, 2008] A rebuilt ECM solved the problem.  While troubleshooting, I noticed that the ECM would not store the error codes.  This was an obvious sign of a faulty ECM, so I purchased a rebuilt ECM.  Problem solved, and rather cheaply also.  This is the benefit of having skills to troubleshoot your own …

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