The 80 is a filamentary full-wave high-vacuum rectifier designed for use in the power supply of a-c operated equipment. Electrically the 80 is similar to the 5Y3GT and 5Y4G.
What are old vacuum tubes worth?
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.
What is the oldest vacuum tube?
thermionic valve
1904: British engineer John Ambrose Fleming invents and patents the thermionic valve, the first vacuum tube. With this advance, the age of modern wireless electronics is born.
Are vacuum tubes interchangeable?
The only real difference is the shape of the glass envelope. Electronically they are the same and can be used interchangeably with no problems.
What is a good vacuum tube tester?
The Hickok models. Hickok low-cost types like the 533, 533A, 534, 534A, are good testers for most service type work and for testing tubes with Gm values below 15,000 micromho’s (Mutual Conductance Values). These models are good all-around testers and lower in price.
Who is the father of vacuum tube?
John Ambrose FlemingVacuum tube / Inventor
How are vacuum tubes numbered?
These tubes have a four digit number as the designation. The format is CV followed by up to 5 digits. This system was used by the British military to codify vacuum tubes, gas tubes, and some semiconductors. The CV4004 is the British military version of a 12AX7WA.
Who buys vintage 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 …
How do you know if a vacuum tube is good?
Any color from grey/silver, to black is healthy. When a vacuum tube develops an air leak (a small crack or bad seal by a pin for example) this getter color will change to pure white. If you see this you know with 100% certainty that the tube is bad.
How do you match tubes without tube tester?
Oh, you could use a preamp or power amplifier to match tubes, taking measurement of plate current, bias current but you really have to know what you are doing as you are working with 100 to 500 volts and enough current to kill, but this is a very accurate way to check tubes as they are “in” the circuit intended for …
What is a full wave recitfier tube 80?
The full-wave recitfier tube 80 is just a short name for the UX280, sometimes also named 280 or VT-80, KX-80, R80 or 80G. History (Tyne 324): In 1925 two small full-wave rectifiers came on the market, the Westinghouse UV196, and the GE UX213. The UX213 was the first full-wave rectifier offered for sale by RCA.
What is the difference between a Type 80 and a 5Y3G?
The type 80 was the standard rectifier for many years before the octal based version, the 5Y3G came out. The 80 is a four pin tube. You can run an 80 as a 5Y3G with the proper adapter. There are no products listed under this category.
How many pins do I need for a rectifier 80?
The 80 is a ‘classic’ full wave rectifier tube. It is directly heated. Thus it only needs 4 pins, 2 plates and the 2 filament connections. Which fits on a UX4 base. The pinout is shown on the left. As all the classic rectifiers it has a 5V filament which consumes 2A.
Can a 5Y3G rectifier run on an 80?
Type 80 (Antique) The type 80 was the standard rectifier for many years before the octal based version, the 5Y3G came out. The 80 is a four pin tube. You can run an 80 as a 5Y3G with the proper adapter.
