Are old radio vacuum tubes worth anything?
According to many factors such as type, status, and use, old radio tubes’ value range in price from some to hundreds and thousands of dollars. For example, an RCA electron tube costs around $15, while a 101D vintage vacuum tube can take you $400.
When did radios stop using vacuum tubes?
1950s-60s – Most vacuum tubes were replaced by transistors in the west. 1970s-80s Tubes are still used in many specialized applications like broadcast television and radio.
What did vacuum tubes do in radios?
VACUUM TUBE RADIO. By the late 1920s, vacuum tube radio equipment replaced the primitive spark-gap systems on most merchant ships. This new equipment could send and receive signals virtually worldwide, by using high frequency or “short-wave” bands.
Which vacuum tubes are valuable?
Sought after by Audiophiles, these include the common U.S. made 6L6 ($15-$25) and 12AX7 ($8-$15). If it’s a Telefunken brand you can easily double or even triple the price. Some newer Western Electric tubes are also sought after by Audiophiles for use in amplifiers and vintage stereos.
How many different vacuum tubes are there?
There are a lot of different vacuum tube types, all with their own applications, characteristics and construction, most of which fall into four general types: (1) The diode, (2) the triode, (3) the tetrode, and (4) the pentode.
Who buys old radio vacuum tubes?
There are usually five types of buyers looking for vacuum tubes: The Radio Collector/Restorer looking to bring old radios back to life or setting it up to display, Tube Collectors (there are actually whole books on collecting vacuum tubes and their original box art), Musicians who still use and love the sound of a …
What are sub-miniature tubes?
What are Sub-Miniature Tubes? Sub-miniature tubes, also referred to as pencil tubes or hearing-aid tubes, are among the last generation of vacuum tubes designed and built. They’re typically very small, and instead of being socketed they have flexible leads like passive components.
What is a 6418 sub miniature tube?
The radio centers around the use of a 6418 sub miniature tube. These little tubes came on the scene about the time that transistors appeared. At the time, transistors couldn’t handle much power or high frequencies. So this tube became the in between step between regular tubes and transistors. The 6418 is very well suited to the hobby builder.
Is this the smallest generation of vacuum tubes?
They’re not the smallest generation of vacuum tubes – that distinction probably goes to Nuvistors , but they maintain the classic glass envelope, letting you see the heater glow and internal structure of the tubes. It’s just not right if you can’t see the tubes glow. I’ve always been interested in small & miniaturized things.
Which amps use Jan 6021w tubes?
ZVex Effects makes the Nanohead guitar amp, and the iMPAMP stereo amplifier, both using JAN 6021W tubes. Audioaero’s Prima amplifier used 6021Ws (although they’re inside the case, soldered to a PCB board – not nearly as cool if you can’t see them).