Restoring Old Radios & Televisions

• Safety warning on hazardous chemicals
• Mains derived EHT
• PCB oil hazard
• Modulators
• The impossible dream?
• Video basics

Decoding Valve, Transistor and CRT Numbers

Note that at least three, entirely different, series of valve designations begin with the letters VT (US Signal Corps, British Royal Air Force and British Post Office). This can be a major source of confusion, although not if you know the source of the device in question.

• Commercial valves
• Military valves
• Cathode ray tubes (CRTs) 
• Photo tubes and photomultipliers
• Voltage stabilisers
• Transistors
• US Army-Navy equipment and component designations

The following pages are located on other websites

• Semiconductor logic device cross-reference
• The E12 resistor range
• The common Zener Diode range
• The peritel SCART connector

The Buyer's Guide has now moved to the excellent Radiocraft site at
http://www.radiocraft.co.uk/directory/directory.htm

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