What tubes can replace EL34?

Other common substitutes for EL34 vacuum tubes are 6CA7 and KT77 tubes. Although not identical, they are close enough to be considered direct substitutes in almost any instance. The EL34, 6CA7 and KT77 also have similar pin outs.

Can I replace EL34 with 6CA7?

Summary. You can choose a vintage or modern EL34, vintage or modern 6CA7, or EL34/6CA7 to replace any of those tubes in your amps and they will work fine. There are also other designs, such as the KT77 vacuum tube, that are “drop-in” replacements. These other tubes are usually modified versions of the EL34 or the 6CA7.

Are 6CA7 and EL34 the same?

The differences are nearly negligible. The 6CA7 was a North American built version of the Euro EL34…. If you find an original Sylvania 6CA7 you will find that it is built more like an American “Beam Tetrode” (like 6V6, 6L6) as opposed to a pure Pentode (EL84, EL34).

Is an EL34 the same as a 6L6?

The 6L6 tube is generally regarded as the “American” cousin to the EL34 tube. The 6L6 is a high headroom, high wattage power tube, but it has a significantly different sonic signature to the aggressive crunch tone of the EL34.

Can you put 6L6 tubes in a EL34 amp?

Re: 6L6 to El34 tube change One if the PT’s heater current capacity. 6L6 heaters draw 0.9A each whereas EL34 heaters draw 1.5A, so a pair of tubes will add an additional 1.2A to the heater supply requirement. Two is the output tube socket wiring.

How long do EL34 tubes last?

about 2500 hours
Power tubes like EL34’s and KT88’s are good for about 2500 hours or more. But may go longer in an amplifier with a conservative design. Small signal tubes with numbers like 12AX7, 12AU7, and 6922, and rectifier tubes like 5AR4 may go 10,000 hours.

Do I need to Rebias my amp?

Certainly changing to a different type of tube requires rebiasing. Replacing old tubes with the same brand and type may not require it, but it’s still a good idea. In fact periodic tube rebiasing can help lengthen the life of your tubes and help your amp maintain a more consistent sound.

Are KT88 and EL34 interchangeable?

EL34 and KT88 share the same pinout and are interchangeable in some circuits.

Can you replace EL34 with KT88?

Can you replace EL34 with 6L6?

Some amps (Self biasing or not) can switch between EL34 and 6L6 with no problems, others might require a resistor changed. If you don’t know of a trusted tech, ask Bob from eurotubes, he’s a helpful dude and wont just try and palm off JJ’s on you.

Can I put 6L6 in a EL34 amp?

What guitar amps use EL34 tubes?

The EL34 is found in many British guitar amps and is associated with the “British tone” (Vox, Marshall, Hiwatt, Orange) as compared to the 6L6 which is generally associated with the “American tone” (Fender/Mesa Boogie; the earlier classic Marshall “Plexi” amps used the KT66, a beam tetrode similar to the 6L6, as well).