Description
Are you looking to replace your EZ81 rectifier valve? Look no further!
Rectifier valves, like the EZ81, are used in a large number of vintage and reissue guitar amplifiers.
We sell a superb example of the EZ81 (6AC4) rectifier made by JJ Electronics. JJ is one of only three manufacturers of valves in the World. So don’t pay more money for rebranded versions of the exact sam valve
This version has a thick glass envelope and extremely robust electrodes. This makes it the perfect workhorse for those guitar amplifiers which use tube rectification.
In fact it’s become quite chic to add a rectifier tube to a new guitar amplifier design. Guitarists just love that ‘retro’ feel!
What’s the difference between the EZ81 tube and the 6CA4.
That’s easy. There is no difference! They are just different numbering systems for exactly the same valves.
So why use a rectifier valve like the JJ EZ81?
Well, the first thing to realise is that the rectifier valve is NOT in the signal chain. It’s there simply to change AC to DC, a process known as rectification.
The reason rectifier valves are still used is interesting. They are actually not that great at doing the job they are intended to do! That is, change AC to DC. If the amplifier is loaded, by say a heavy power chord from your trusty Les Paul, the DC will ‘sag’. This is because the rectifier simply can’t keep up. In contrast, a diode rectifier will barely sag. (sagging means the DC voltage drops before recovering.) But here’s the thing. Guitarists have come to like this effect, hence the demand for valve rectification.
And of course, back in the day, there were no decent solid-state rectifiers. So the EZ81 and similar types were the only game in town. There are still hundreds of thousands of vintage amplifiers out there which use rectifier tubes and more are still coming into the marketplace.
So now you know!
EZ81 Rectifier tube for sale
If you have any questions please drop us an email and we will get straight back to you.
Reviews
There are no reviews yet.