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Discussion in 'The Workbench' started by big dooley, Nov 26, 2010.
This time got picture uploaded: Any idea? VLVE2004
Here are the U.S. Trademark filings for New Sensor Corp in NY.
Updated on 6/12/2014.
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
ECC83 VLVE 00035? White Logo
VLVE-00038 6V6GT Shuguang White Logo
VLVE-00039 KT66 Shuguang White Logo
VLVE-00040 ECC83? Black Label
VLVE-00040 12AX7/ Philips-EI Black Logo
VLVE-00041 12AX7/ Philips- EI 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
VLVE-00092 EL34B Shuguang Graded Anode Current White Label
VLVE-00101 EL34B Shuguang Graded Anode Current
If anyone has any more P/N's to add, that would be great. Looking for P/N's from 1997 up to 2003 especially when Marshall was using Ei pre and power tubes. Does anyone have any Marshall EL84's from an early 201 or 401? If so, post up the P/N's. Also, Marshall briefly used Ei EL34's in some amps.
Anyone know what VLVE-00008R is?
Here is an Ei EL34 relabeled as a Siemen's. These tubes were sold relabeled in the 80's through the 90's. They were not that good of a tube.
Anyone have these with a Marshall VLVE code?
Note: These were the only EL34's made with a tip on the top of the tube.
New Tubes To Decipher
I pulled these tubes out of a Marshall DSL40 Combo. They've already been replaced, but I'm curious to know what they ACTUALLY are. Also neither of these are on the list yet.
EL34 - VLVE 00092
12ax7 - VLVE 90067
The EL34's should be Shuguang's.
The preamp tubes, from my research are JJ's made exclusively for the Viet Nam Marshall plant.
Guess I am gonna have to pull the back of the Plexi tonight.
I still have the factory tubes in my '05, thinking about a full set of JJ's for it.
You can do a lot better than a full JJ retube. JJ's are cheap and that is why they are popular. JJ preamp tubes are the darkest sounding CP tube available.
You should think about a TAD 12AX7WA or Ruby 12AX7AC5 HG+ for V1 and then you could go with JJ's in V2 and V3.
For power tubes, the JJE34L sounds a lot better than the JJEL34.
Just my 2 cents.
depends what you want... JJ-pre's are the darkest tube around... great tubes for taming an overly bright amp,
their ECC803 offers a bit more detail, but at the cost of increased chance of becoming microphonic, due to their very large plates... electrically they are sturdy as hell though, and their specifications are one of the highest being seen... including NOS
their regular ECC83S is much less prone to microphonics as they have one of the smallest plates from all current production tubes... they sound a bit more loose and less detailed though... today marshall uses these for the V1 position as their low microphonic selected tubes proved to have a more constant quality
their powertubes tend to be a bit more toppy and bottomheavy on the other hand, especially with the KT77 and 6CA7... the E34L may be a good choice for a superlead
Thanks Guys I got this bookmarked.
Now.... Since I am in the US, which vendors are the best?
Full set of JJ's in my 05 1959HW
im new to this forum and cant find out how to post a thread on here yet so sorry for interupting yours. anyone now how to trouble shoot a marshall jcm 900 sl-x 100w head. its been sitting for a while so i cleaned all the connections with deoxit d5. i let everything sit over night and put back together. everything was working fine and then i put on standby. i go back and it dont work. so i take the jack out of the front input and put it in the return effect loop jack in the back and it works. anyone have any idea what the prob could be?
Possibly the preamp tubes.
You should post this problem in a separate thread...
(click New Thread button)
Awsome thread " big dooley "..very good job man...
I have these in my Marshall tsl60 head..
v1:white label : vlve 00035-18 wk39
v2 : blk label : vlve 00040 wk45
v3 : white label : vlve 00035-t wk 45
none marshall ;
v4 : International C service master 12ax7a
I have the old VLVE-00041 listed above as a Philips EI. It's the white logo, I put it in V1 today until my new 7025 comes in the mail. It sounds pretty aggressive and pronounced in my 2203x. Took out the JJ as they started sounding a little blah in V1. I have the 00047 or 49 in V2 and a JJ in V3. Coming from all JJ's ,this thing is starting to breath fire now. Had to lower the bright cap slightly to allow for enjoying the brighter, more articulate tubes. Thanks for this thread , it's awesome !!
Got this set in the tube closet. I've never had them installed in anything yet, just tested them when I first bought them and stored them away for a rainy day. I can't seem to find any info on them at all.
those are chinese made shuguangs... two of them are quite high gain
My TSL602 has still got a full complement of 4x
VLVE-00055 12AX7B/ECC83 Shuguang No Selection White logo
The valves are date-stamped 2005, so are original for this amp.
I'm not sure what the "no selection means" - I guess these are just the valves that didn't have any special properties and are just the "standard" offering.
One things for sure, they still work great after ten years with no issues at all. So whatever else they are, they're tough!