Little Dot Tube Amps: Vacuum Tube Rolling Guide
Oct 3, 2018 at 10:36 AM Post #11,686 of 13,430
I'm wondering if there's a compatibility issue with the EF95/6J1p-EV & the LD II++, which is an older model.

I believe that the LD II++ shipped with EF92 as drivers. I don't know if it is possible to run EF95 tubes in this amp, but if so, it would be necessary to change some jumpers as the EF95 has a different pinout. Unfortunately, since the LD II++ was first introduced in 2006, it is difficult to find much info on this amp....
 
Oct 3, 2018 at 10:36 AM Post #11,687 of 13,430
First of all do you have an other pair of ef95 tubes you could try ,maybe its the tubes? if the other pair you try doesnt work your probably not on the right setting i had a little mk 3 to change from ef95 to ef 92 settings we had jumpers accessible thru peep holes under but yours i think you remove the cover yes .i would check on the thread for pictures of inside

I tried 2 sets of tubes, no output. I'll search for some internal pics of the II++, and I'll open it up tonight, to see what I can figure out. Thanks.
 
Oct 3, 2018 at 10:38 AM Post #11,688 of 13,430
I'm wondering if there's a compatibility issue with the EF95/6J1p-EV & the LD II++, which is an older model.
The old Little Dot II++ uses CV131 driver tubes and 6C19 output tubes. It does not have the option to use EF95 tubes so you're limited to EF92 compatible tubes only.
 
Oct 3, 2018 at 10:39 AM Post #11,689 of 13,430
I believe that the LD II++ shipped with EF92 as drivers. I don't know if it is possible to run EF95 tubes in this amp, but if so, it would be necessary to change some jumpers as the EF95 has a different pinout. Unfortunately, since the LD II++ was first introduced in 2006, it is difficult to find much info on this amp....
Ok its a ++ model didnt know that one was thinking typo .good to know.
 
Oct 3, 2018 at 10:41 AM Post #11,690 of 13,430
The old Little Dot II++ uses CV131 driver tubes and 6C19 output tubes. It does not have the option to use EF95 tubes so you're limited to EF92 compatible tubes only.

That's what I was afraid of. Guess I have 6 EF95 tubes available......
 
Oct 3, 2018 at 1:25 PM Post #11,691 of 13,430
That's what I was afraid of. Guess I have 6 EF95 tubes available......
Hi T,
Don't feel bad; I have maybe 200 different EF95, 6AK5, 5654, 6J1P, M8100, CV 4010, CV850 etc from my Little Dot MKIII days.
Don't use them any more.
Many of them were bought as used. If anybody is interested in something, please PM me.
 
Oct 3, 2018 at 1:29 PM Post #11,692 of 13,430
Hi T,
Don't feel bad; I have maybe 200 different EF95, 6AK5, 5654, 6J1P, M8100, CV 4010, CV850 etc from my Little Dot MKIII days.
Don't use them any more.
Many of them were bought as used. If anybody is interested in something, please PM me.
PM sent.
 
Oct 5, 2018 at 4:06 PM Post #11,696 of 13,430
I'm still interested in some Tesla's... the one's with the white hat I believe! Mine died suddenly before I could get a sense for them. (EF95 of course) I stopped tube rolling a while back, finding the Voshkod and the yugo the best for my ears but the itch still remains.
 
Oct 5, 2018 at 4:40 PM Post #11,697 of 13,430
I own them all :). Now i am listening via SYLVANIA JAN 5654W/6AK5W Black Plate and I am riveting by airy trebles and space. I like my collection of tubes.
 
Oct 5, 2018 at 5:04 PM Post #11,698 of 13,430
I own them all :). Now i am listening via SYLVANIA JAN 5654W/6AK5W Black Plate and I am riveting by airy trebles and space. I like my collection of tubes.
When I took a first listen to my Sylvania jhs 5670 from 1962 I had the same reaction but further listening against the Western Electric 396a(5670) truly outperformed the Sylvania in refinement, vocals, bass and treble. But you are right about the airy treble on the Sylvania and that was what had me at hello. Bass lacks. Add Western Electric to your collection.....expensive though.
 
Oct 5, 2018 at 7:40 PM Post #11,699 of 13,430
When I took a first listen to my Sylvania jhs 5670 from 1962 I had the same reaction but further listening against the Western Electric 396a(5670) truly outperformed the Sylvania in refinement, vocals, bass and treble. But you are right about the airy treble on the Sylvania and that was what had me at hello. Bass lacks. Add Western Electric to your collection.....expensive though.

What amp are you running these in? The 5670/2C51 is a double triode and won't work natively in the LD....
 
Oct 5, 2018 at 10:44 PM Post #11,700 of 13,430
What amp are you running these in? The 5670/2C51 is a double triode and won't work natively in the LD....
I am running the WE 396a(5670) on my Audioromy 6v6 amplifier. But I know that WE 5654 makes them because I just bought a set for the Little Dot mk2 which I am burning them in as we speak. Not listened to sound yet on my LD but my W.E 5670 are sounding pretty great on my Audioromy amp.
IMG_20181003_184344.jpg
 

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