Emission Labs. Replacement of KR Audio, Fullmusic, Sofia, AVVT tubes.

Tube Replacement Table

Description

We have a replacement for almost every tube. These are just some examples of tubes that can be replaced by EML tubes. 

Part1) Upgrade of 300B tubes.

Part2) Upgrade of other than 300B tubes.

 

KR

KR842

Drop In replacement.
KR 2A3
Drop In replacement.
KR 300B-XLS
EML 320B-XLS
(Read Note!)
KR uses very high heater current for their 300B-XLS. We have seen tubes of 2.4 Ampere. So we recommend EML300B-XLS as replacement, but still the EML has lower heater current.
KR 52B
(Read Note!)

There is great confusion with this part number, which is why Emission Labs ®don't use it. Some 52B need to be replaced by 520B-V2, others by 520B-V3.

Always check with jacmusic.com before replacing a 52B, so we can find out which tube is the right one.

.
AVVT

AV 2A3-M

Drop In replacement.
AV 302B
Drop In replacement.
AV 320B-SL
Drop In replacement.
AV 32B-SL
Drop In replacement.
52B
(Read Note!)

There is great confusion with this part number, which is why at Emission Labs ®we stopped using it, but we make this tube still. Some 52B need to be replaced by 520B-V2, others by 520B-V3. In some cases you may can also take the EML1605. Always check with jacmusic.com before replacing a 52B, so we can find out which tube is the right one.

520B-REF
Drop In replacement.
.
Sofia / Fullmusic

2A3/n

Drop In replacement.
274A/n
Drop In replacement.
274B/n
Drop In replacement.
45/n
Drop In replacement.
300B/n
EML 300B-mesh
(Read Note!)
Though we say this is a drop in replacement, please note we (at EML specify) our tubes safer. We say typical 22Watt, and maximum 28 Watt. Though we think this is a very good idea for Fullmusic tubes as well, the Fullmusic limits are higher. So you can only replace when the EML is not biased above the values in the EML datasheet.
300B+
Not a drop in replacement, but a good technician can fit it in.