Buy our valve kits and save £££ over the cost of the individual valves!


This is a brand new factory matched quad (4 valves) of the highly regarded uprated EL34-B version of the classic EL34 valve from Shuguang (same part number as Marshall valves marked VLVE-00042) which can handle 30W of anode power for less ''red plate problems'', along with three high gain low noise 12AX7  double triode valves (equivalent to Marshall valves marked VLVE-00055) for extra crunch and drive without the extra hiss!



An ideal replacement for standard EL34 and 12AX7 (ECC83) valves in Marshall 100W guitar amplifiers or other high power audio amps, or for use in DIY build Hi-Fi amplifiers.

EL34 quad factory matched to within 1mA anode current.

Sent by First Class post for fast delivery.



This valve kit fits most of the "Plexi" and later metal faced 100W Marshall amps and is an ideal upgrade replacement set of valves for Marshall models: 2203, JCM800 (100W), JCM900 & JCM900 SL-X (100W) EL34 version, JMP100W EL34 version, Lead / Super Lead EL34 versions including the 4100 head and 4101 / 4102 combo amps, Handwired 1959HW, Master Volume 2100 head and 2101/2102 combo amps and any other guitar amp using four EL34s and three 12AX7s including the Peavey Windsor 100W.





Shuguang EL34 testimonials from around the Web, with acknowledgment and thanks...

“The sound is very clear with good dynamic range. Top end has nice extension but never bright, with great texture in the mids and bass.”



“I find the Shuguang EL34-B to be a very warm sounding tube with a magic midrange. Highs are excellent, but not to sharp. The bass is there but also very well controlled. After about 100 hours they really come alive. They are much louder and CLEARER then the other tubes I've tried. That's the true magic of this tube, the clarity, they really help my Triangle Celius 202 speakers image very well. They also produce a very accurate and uncolored sound. For the money, I can't imagine they can be beat.”



''The sound is loud and clear with a very nice sonic range. Not excessive in tops, mids, or bass, they are accurately described as well balanced. The sample tested had no audible microphonics and an average background noise level. Harmonic content was rich, lending that pleasant ''swirl'' and sustain that guitar players crave''



“.... if I had to pick one for best tone it’d be the Shuguang EL34-B….Once I can convince a customer to try the EL34-B, they almost always come back for more. The Shuguang folks make excellent glass….”



Should you be in any way unhappy with your purchase within 28 days of purchase, you may return the item for a full refund of the purchase price.



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This is NOT possible if you have already paid for any of the items you are ordering.

If this option is not offered in the listing, please use the following listing to pay the extra cost of this.
Tracked & Signed supplemental charge to Italy 

Also note that orders sent to Italy may take MUCH longer than eBays estimate to be delivered and, whilst some orders do arrive within a week or two, many orders sent to Italy are not delivered for three or perhaps even four weeks! This is entirely outside our control, as we ship within two working days and once your order is in the hands of Poste Italiane, there is nothing we can do to get it to you any faster. 

Please DO NOT send messages with the title "Item not received" as these open complaint cases against us and damage our seller rating! Instead please use the general "Other" heading to ask about your delivery if several weeks have passed.

Lastly, all please note that when eBay asks you "Did the item arrive on or before" their estimated delivery date, it also damages our seller rating if you answer "No", so bear in mind that we always ship within two working days, so if you answer "No" because your local postal service (especially in Italy!) has taken weeks to deliver, you are punishing us, not them!

Thank you all for your kind consideration of the above and remember that we will always do our very best to sort out any problems or questions you may have related to your order if you contact us using the "Contact Seller" and (if the choice is given) "Other" ask a question of seller options.


These valves are supplied to you direct by ShredderTech>
This valve kit fits most of the "Plexi" and later metal faced 100W Marshall amps and is an ideal upgrade replacement set of valves for Marshall models: 2203, JCM800 (100W), JCM900 & JCM900 SL-X (100W) EL34 version, JMP100W EL34 version, Lead / Super Lead EL34 versions including the 4100 head and 4101 / 4102 combo amps, Handwired 1959HW, Master Volume 2100 head and 2101/2102 combo amps and any other guitar amp using four EL34s and three 12AX7s including the Peavey Windsor 100W. “I find the Shuguang EL34-B to be a very warm sounding tube with a magic midrange. Highs are excellent, but not to sharp. The bass is there but also very well controlled. After about 100 hours they really come alive. They are much louder and CLEARER then the other tubes I've tried. That's the true magic of this tube,