[mordy]

But it was an exquisite POOF!, wasn't it?

Naw, just a dead channel and despair...

 

[triod750]

Naw, just a dead channel and despair...

 

[JazzVinyl]

Thanks - I did not make myself clear in my post. What I meant was that I unfortunately plugged in the Little Dot MKIII into the jacks of the equalizer circuit on the back of my direct coupled receiver.
POOF!

Did it happen upon turning the LD on?

 

[mordy]

Did it happen upon turning the LD on?

As I recall I used my setup with the LD MKIII connected to my receiver via the eq jacks for a while, but one day the circuit board blew up on one channel. It could have been on start-up - but I don't remember clearly. Seems that a large voltage spike of 155V could occur.

 

[JazzVinyl]

A $5.00 RCA 12SL7 in the MK9.

Scary tube! It gives the TS BGRP a run for it’s money!!

Deep Bass, not as dark as the TS but not “too bright” either.

 

[Estratica]

I have a doubt.
The tube in the photo looks like the 6J1P EB am I right?
I have two spare units and I was thinking of trying it on the Fx Audio Tube 03 that has the GE JAN 5654W tube.
Can I make the exchange without damage to the device or the 6J1P tubes?
Thanks.

 

[mordy]

The 6J1P and the 5654W are interchangeable. Cannot tell from the picture if it is a 6J1P but if it says 6Ж1П then it is.

 

[warp2600]

The tube in the photo looks like the 6J1P EB am I right?

Cannot tell from the picture if it is a 6J1P but if it says 6Ж1П then it is.

Yes, the tube in the photo has the cyrillic "6Ж1П" and below that the "EB" lettering.

 

[Estratica]

The 6J1P and the 5654W are interchangeable. Cannot tell from the picture if it is a 6J1P but if it says 6Ж1П then it is.

W

Thanks for the quick guidance. Hugs.

 

[Estratica]

The 6J1P and the 5654W are interchangeable. Cannot tell from the picture if it is a 6J1P but if it says 6Ж1П then it is.

Thanks Mordy.

 

[mordy]

Thanks Mordy.

There is a source called Radiomuseum. All you do is type in Radiomuseum5654 or whatever tube you want to know about. Then a window opens up with other designations of the same tube, or similar tubes.
https://www.radiomuseum.org/tubes/tube_56545.html
Sometimes you need to search under different designations to get the answer:
https://www.radiomuseum.org/tubes/tube_6j1p.html
6J1P and 5654W don't appear on the same page, but they are both in the EF95 family and then you know that they are compatible.

 

[Estratica]

mordy thanks for the guidance.
Hugs.

 

[mordy]

mordy thanks for the guidance.
Hugs.

Thanks

 

[RaynFox]

So after a while, I've been reading a lot about tube rolling and I finally got to tube roll my Little Dot Mk3. I must say, simply amazing. I'm currently using JJ 6SN7 in adapters + socket savers (didn't want to remove the golden rings) and Voskhod Rocket 6ZH1P-EV for the driver tubes. It's a great combo, I can actually hear a lot of new things in msuic that I couldn't before - I'm surprised by this. What I noticed the most going from the stock tubes tho is more bass. It's smoother and nicer sounding but there is more of it. It's a very audible difference with Sennheiser HD 6XX that I'm using. Overall tho, very nice sound and I can recommend this combo! Of course also attaching pictures. Wouldn't win a beauty contest but it's worth it. They look absolutely stunning in total darkness.

 

[lupoal]

Now I'm not sure if my amp is bad or C3g was just not meant for it in the first place.

check the voltage at the heater pins under load… I discovered in my MKII it was way too low to drive C3g within tube specs