[mxxl]

I’ve recently upgraded to the t1 gen 2. They’re quite warm, so I’ve rediscovered my love for the voshkods. I have a pair of 6hm5 coming in as well, looking forward to seeing how they perform. The ge jan 5654w are also a winner as far as mids go, I think it’s awesome that tube rolling can add so much versatility to your setup.

 

[lupoal]

Hi,
I have one Little Dot MKII (last hardware release) and I've read roughly half of this huge thread... I've already bought many different NOS 5654 versions (Mullard, GE, a couple of amazing and expensive Siemens, etc. etc.) and then I've seen people talking about EK90, so I bought couple of them NOS NIB 12/69 Telefunken because of curiosity (only 10 euros on e-bay... amazing)... now, before to plug-in and turn ON... are those still ok? I mean... compatible/safe in EF95 mode as listed at page 77 in this thread? (I don't want to damage my Little Dot, I love it)
.
then, always about valves, now I'm running a couple of 6N6P Foton gold grid... but I've read good things about 6N6P-IR (not just "I"), these costs roughly double then the Foton... does it make sense to buy a couple of them? Or, as spare part, another couple of Foton are more then enough that there are not so big differences between those two variants?

thank you in advance for help

 

[vixro]

Just got around to rolling some tubes I bought years ago (my little dot had a broken cap that I just spent the last 2 days taking apart and repairing, that space is TIGHT!!!!!!!). Now that I've had a chance to really test my RCA 6AK5W's and these Voskhod's I'm happy to say the Voskhod's are more open and better bass. The RCA's feel just a bit tight for me when listening to electronic dance music but I'm going to give them another shot next time I have some classical music playing.

I have an extra pair of 6J1P-EV's, number 13, VII - 77, platinum plated unused old stock if anyone wants. I bought 4 about 5 years ago from two different sellers but they appear to sound identical to each other. Anyone want to trade my pair with some tubes they might recommend for EDM? Shoot me a PM.

Next up I need to try the gold Voskhod's!

 

[HungryPanda]

My favourite tubes are the Voskhod's followed by the Mullards

 

[mxxl]

If anyone needs tubes, I have a bunch of ef95/91 I’m looking to get rid of. They’re all used for less than 200 hours, some are barely used at all. Pm me if interested

 

[RikudouGoku]

I got my 1+ today and I got 4 stock tubes. Are they all the same and they just give 1 pair as a replacement? They all have the 6j1 and some other number to the upper left.
1.73
2.79 or it could be 19...(barely visible but most likely 79)
3.81
4.80

 

[dhm78]

I can't seem to find any information on my model. It's a Little Dot 2 vs MK 2. Does anyone have any recommendations?

 

[TrollDragon]

I can't seem to find any information on my model. It's a Little Dot 2 vs MK 2. Does anyone have any recommendations?

That is a really old version and you will have a hard time finding tubes for it with basically no options for rolling.

 

[BattousaiX26]

Anyone knows where can I still find sylvania gb 5654 on US?

 

[jubjubb]

Hey guys.
I'm enjoying a lot reading this tread!
I've decided to try the 6SN7 route to complement my GE JAN 5654Ws with my beloved MKIII.

I've ordered a set of these adapters: https://www.ebay.ca/itm/1PC-6SN7-TO...118686?hash=item3618c9e59e:g:dEwAAOSwXetZXP2f
to use with these Sylvania made Canadian tubes, that I tought would sound great: https://www.ebay.ca/itm/Pair-of-6SN...e=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649

The thing is, these power tubes don't seems to light up. No light inside the vacuum when I power on... NO SOUND!
Does anybody have an idea if i'm missing something, or maybe BOTH of my NOS tubes are bad
Thanks.

 

[jubjubb]

Hey guys.
I'm enjoying a lot reading this tread!
I've decided to try the 6SN7 route to complement my GE JAN 5654Ws with my beloved MKIII.

I've ordered a set of these adapters: https://www.ebay.ca/itm/1PC-6SN7-TO...118686?hash=item3618c9e59e:g:dEwAAOSwXetZXP2f
to use with these Sylvania made Canadian tubes, that I tought would sound great: https://www.ebay.ca/itm/Pair-of-6SN7GTB-Tubes-Sylvania-For-Rogers-Ratings-85-90/372963027384?ssPageName=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649

The thing is, these power tubes don't seems to light up. No light inside the vacuum when I power on... NO SOUND!
Does anybody have an idea if i'm missing something, or maybe BOTH of my NOS tubes are bad
Thanks.

I left the amp powered on for 15 minutes to see if it would help. To my suprise, the amp got so hot that I just unplugged it right away!
Oh my god! It smells like plastic burned
I really think I messed up now.
I’m just letting it cool down for an hour before trying to turn it on again with stock tubes. Gosh

 

[TrollDragon]

I left the amp powered on for 15 minutes to see if it would help. To my suprise, the amp got so hot that I just unplugged it right away!
Oh my god! It smells like plastic burned
I really think I messed up now.
I’m just letting it cool down for an hour before trying to turn it on again with stock tubes. Gosh

The 12AU7 is the wrong adapter. Pin 9 on the socket of the LD amp is tied to ground and pin 9 on the 12AU7 adapter connects to the center tap on the heater filaments, which is why the tubes never lit up as they were looking for 12V on the filaments.

The proper adapter is a 6SN7 to 6CG7.
https://www.ebay.ca/itm/1PC-6SN7-TO...-Socket-Adapter-Socket-Converter/233168869898

 

[jubjubb]

The 12AU7 is the wrong adapter. Pin 9 on the socket of the LD amp is tied to ground and pin 9 on the 12AU7 adapter connects to the center tap on the heater filaments, which is why the tubes never lit up as they were looking for 12V on the filaments.

The proper adapter is a 6SN7 to 6CG7.
https://www.ebay.ca/itm/1PC-6SN7-TO...-Socket-Adapter-Socket-Converter/233168869898

This is really confusing hehe. So many adapters. Thanks for your link TrollDragon, I just bought these and I will try to send back the other adapters to the seller.
By the way, the amp is back to life! The thin plastic layer around the toroidal transformer melted a little bit. I see how it can be dangerous when unexperiented user mods occurs. So glad the Little Dot still works! Have to say, this is a tank!

 

[macaltec]

Tons of information here. I have read a lot but havent come across any deep discussion about 6sn7 tubes yet. Will any 6sn7 work provided I have the proper adapters? I have several 6SN7GTB tubes is why I ask. Thanks.

 

[shepperd]

Just an added experience. There was a very good seller from the Ukraine. His site is down sadly but he had a lot of interesting and unusual tubes. If he reappears I will post the link. Anyway he once had an early version of the justifiably well known Voskhod. Unlike those it is not ribbed (which was probably done to make the tube more stable and resistant to vibration; remember it was used in fighter planes and maybe rockets) If I remember it dates from 74' and I think the ribbed version appears in 79'...that's just a guess because I have ones from 82. This older tube is ever so slightly warmer in tone and didn't take as long to break in. Non microphonic. I've been using it for a while now and haven't had the itch to try others from my tube stash. Out of curiosity, has anyone tried the rather infamous Telefunken, the one made in Germany with the diamond on the bottom? I say infamous because the prices are absurd for these now. By the way, sonically there is absolutely no difference between the so-called gold version of the Voskhod and the normal. I have had both.