Stock Marshall Tube Codes

[big dooley]

maybe the mods like to make this a sticky?
coming from the dutch importer of marshalls
these are the codes printed on stock marshall tubes with a description what brand or type they actually are... the list is not entirely complete, but covers a lot of the actual tubes being used by uncle jim today

VLVE-00007 12AT7/ECC81 No selection White Logo
VLVE-00009 12AU7/ECC82 No selection White Logo
VLVE-00010 EL34 Svetlana
VLVE-00033 SV6550C Svetlana White Logo
VLVE-00038 6V6GT Shuguang White Logo
VLVE-00039 KT66 Shuguang White Logo
VLVE-00042 EL34B Shuguang Gold Logo
VLVE-00047 12AX7B/ECC83 Shuguang Low Microphony Gold Logo
VLVE-00049 12AX7B/ECC83 Shuguang High Microphony Gold Logo
VLVE-00055 12AX7B/ECC83 Shuguang No Selection White logo
VLVE-00063 12AX7B/ECC83 Shuguang A Low Microphony White Logo
VLVE-00064 12AX7B/ECC83 Shuguang B Low Microphony White Logo
VLVE-00065 12AX7B/ECC83 Shuguang Gain Selected >=4V White Logo
VLVE-00066 ECC83S JJ Low Microphony Red Logo
VLVE-00066S ECC83S Microphonic Selection A
VLVE-00067 ECC83S JJ Low Microphony Red Logo
VLVE-00067S ECC83S Microphonic Selection A
VLVE-00068 EL84 JJ Graded Low Anode Current Red Logo
VLVE-00069 EL84 JJ Graded High Anode Current Red Logo
VLVE-00070 EL34 JJ Graded Anode Current Red Logo
VLVE-00071 EZ81 JJ No selection Red Logo
VLVE-00077 KT66 Shuguang Graded Anode Current Gold Logo
VLVE-00080 KT88 Shuguang Graded Anode Current Gold Logo
VLVE-00083 5881/6L6WGC Shuguang Graded Anode Current Gold Logo replaces VLVE-00006
VLVE-00087 EL34B Shuguang Graded Anode Current White Logo
VLVE-00088 GZ34/5AR4 JJ No selection Red Logo Replaces VLVE-10043

 

[MartyStrat54]

I'm going to put this in the Preamp Tube thread (giving you credit.)

 

[demonufo]

Contact Adwex about it. I think this should be a sticky too.

 

[RiverRatt]

Bump for a sticky. This is good info and questions are always popping up about it.

 

[Australian]

Kewwwlll!!!! I was going to ask about this. Dooley

 

[Gtarzan81]

Thank you sir!

 

[big dooley]

necropost....

 

[DSL100 Dude]

+1 for the sticky.

 

[Adwex]

Yeah, I agree, this is valuable info. I think a more appropriate place for it would be in Marty's tube thread, but it'll get buried, so sticky'd it is.

 

[RiverRatt]

 

[impetus maximus]

nice one dooley

these were in my 89 2204 when i got it years ago. they look chinese to me
dunno anything about them. maybe Marshall maybe not
ECC83M

 

[tone seaker]

very cool thanks

 

[plexilespaul]

thanks

 

[61rocker]

nice one dooley

these were in my 89 2204 when i got it years ago. they look chinese to me
dunno anything about them. maybe Marshall maybe not
ECC83M

My '87 2210 had the same (I believe) tube, but with red 12ax7A printed on them the same way....I compared the pic to one and everything looks identical...I was told by sccloser on my post that they were Chinese...they don't sound too bad.....I put a couple of Groove Tube Golds in for now and the tone did get a little tighter and chunky.....I have a pic on my thread Original Tesla EL34....? it's not too clear of a pic, but on my original post it's the 3rd tube.....wow,I can't believe I actually helped someone with a tube question.....the getter, the plate, and everything looks the same as mine...I have five of them.....I'll stand corrected of course....

 

[impetus maximus]

thanks for the info 61rocker
yeah i compared them to a new Shuguang and the plate setup looks the same.
my ECC83's sound much better than the new 12ax7a and 12ax7b's but all
are noisy and suck for getting clean tones. good Metallica type tone though.

Shuguang 12AX7-A


Penta, Ruby Tubes, and Groove Tubes use Shuguang tubes.

/max

 

[jellyfishaudio]

Thats really useful information, filed for future reference, thanks!

Do you know which amps the Shuguang tubes are used in these days?

 

[big dooley]

Thats really useful information, filed for future reference, thanks!

Do you know which amps the Shuguang tubes are used in these days?

you mean preamp tubes? pretty much in every amp i guess....usually they put JJ's in V1, because the quality of the low microphony tubes is more consistent, but the for other stages they use both brands

 

[doomsdaymachine]

I have the 000-10 EL34's in my new JVM205H, which is listed as Svetlana. Others have said these are SED =C= ?? We know SED used to be called Svetlana, and are made in that factory, but the "new" Svetlana is New Sensor - anybody care to elaborate as to which tubes are in the JVM??

 

[big dooley]

I have the 000-10 EL34's in my new JVM205H, which is listed as Svetlana. Others have said these are SED =C= ?? We know SED used to be called Svetlana, and are made in that factory, but the "new" Svetlana is New Sensor - anybody care to elaborate as to which tubes are in the JVM??

rest assured they are winged C's
svetlana is still svetlana in europe although they do have the =C= logo
svetlana is no longer allowed to carry their own name in the US

 

[LBKENNEDY]

how bout a brief descriptor about where and when to use hi
or lo microphany (ilovethatword) tubes, anyone? thx lbk