Marshall Tube Identification:

Inspector #20

Inspector #20

Ambassador of Tone
Fallen Star
Country flag
Special thanks to Amp Tech Extraordinaire Jack Spina for the data contained herein:

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-00040 12AX7/ECC83 Philips-EI Black Logo
VLVE-00041 12AX7/ECC83 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-00092 EL34B Shuguang White Logo
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 White Logo
VLVE-00101 EL34B-STR Shuguang Graded Anode Current Gold Logo replaces VLVE-00092
 
I like the Marshall tubes just fine in V2 and V3. I only use 12AU7 in V1 and 5751 in V4 of my DSL40C's.

I have many new Marshall take outs from all the tube upgrades that I do for people.
 
For you guys who really, really dig a warm, vintage tone, but feel like the DSL40C has too much gain, you should try the 12Au7 (ECC82) in V1. I am literally able to dime the gain and still be able to use it effectively - something impossible with a ECC83.

Then, with the 12AU7 in V1 on 'Red' channel, hit that sucker with a clean boost and you won't believe your ears...

it's a very warm, rounded tone, woody I guess you could say....
 
Robert Herndon said:
For you guys who really, really dig a warm, vintage tone, but feel like the DSL40C has too much gain, you should try the 12Au7 (ECC82) in V1. I am literally able to dime the gain and still be able to use it effectively - something impossible with a ECC83.

Then, with the 12AU7 in V1 on 'Red' channel, hit that sucker with a clean boost and you won't believe your ears...

it's a very warm, rounded tone, woody I guess you could say....
Click to expand...
Go further Robert, hit the channel no one wants to touch!
OD 2 With the settings I sent you !
 
I found a great video where the fellow is performing tube swaps on a DSL50, which has a very similar tone stack to the DSL40C. In this video, you can really hear the differences I am try to describe in my previous posts:

 
ivan H said:
Now these are tubes
15653064259638133136925981968564.png
Click to expand...
And these are The Tubes...

2e45688a4deaf910ce8a7f4d873dfd4a.jpg
 
Last edited:
Robert Herndon said:
I found a great video where the fellow is performing tube swaps on a DSL50, which has a very similar tone stack to the DSL40C. In this video, you can really hear the differences I am try to describe in my previous posts:

Click to expand...
Yea you can really pick up the different tone changes in this clip!
When I do this in the garage, the changes seem more subtle!
Cheers Mitch
 
You must log in or register to reply here.
Back
Top