Quad set ITT, S11E12, 12E1 Power Tetrodes- N.O.S TEST STRONG same pin KT88 Click images to enlarge Description Quad Set ITT, S11E12 NOS Power Tetrodes- same pin connections KT88 - TEST STRONG QUAD SET General Electric Audio Output Power Tetrodes -USED Test strong Your bidding on four x 4, 30 Watt,  ITT S11E12 New Old Stock, test strong, closely matched, Power Tetrodes. The S11E12 tube was a Special Quality Beam Tetrode and is a quality version of the 12E1, however without the Top Cap. Has the same pin connections as the popular KT88 and with a simple re-bias I have substituted for the KT88 making a great alternative to its similar cousin.  Although clearly marked ITT Made In England I would suggest the S11E12 has been manufactured by STC and with cross-licensing agreements, I would suggest these are STCc rebadged as ITT. All four are the large black plate type with dual-getter rings. All test excellent and closely matched. Have tested on my AVO 163 and all four exceed the specification of a New tube. Vf=6.3v, Vg=-20.0v, Va=150v, Vs=150v, Tube1) Ip=100mA, Gm=8.0mA/V, Tube2) Ip=99mA, gm=8.2mA/V, Tube 3) Ip=94mA, Gm=8.0mA/V, Tube4) Ip=92mA, Gm=8.0mA/V. A new tube under these conditions should measure around Ip= 90mA, gm 8.0mA/V. So all test very strong and very closely matched. Will ship anywhere in the world at buyers expense. Please check out my other auctions for early vintage quality audio tubes. NO RESERVE-small starting bid Images sell! Get Supersized Images & Free Image HostingCreate your brand with Auctivas Customizable Templates. Attention Sellers - Get Templates Image Hosting, Scheduling at Auctiva.com. Track Page Views WithAuctivas Counter

4pcs GOLD Tube Anode Caps EF37 EF39 12E1 FU519 EL504 Ceramic Socket For EF37 EF39 12E1 6K7 6J7 6B8 ..... Anode caps Approx.?6mm Each lot of 4pcs.plate capplate cap 4pcs GOLD Tube Anode Caps EF37 EF39 12E1 FU519 EL504 Ceramic Socket For EF37 EF39 12E1 6K7 6J7 6B8 ..... Anode capsApprox.?6mmEach lot of 4pcs. PaymentDelivery detailsTerms of salesAbout usContact usPayment It is ONLY accepted PayPal payment. Please be sure your shipping address is correct. We will only ship to your address listed at the PayPal payment. Due to the secure reasons, we are not allowed the address change through email or message. We have no responsibility for shipping address provided. Payment must be received 7 days after auction ended. Unpaid dispute will be filed to eBay for non- payable bidders.Delivery details Ship to worldwide excluded some countries. It takes about 7-21 business days on the way. Item will be Shipped Within 24 hours as soon as your Payment Verified. Some times the date will be delayed due to a shortage. However, we will inform you via the Email. We ship to PayPals address ONLY. Please make sure your address in PayPal is correct and available before you pay. Please indicate your personal requirement, such as colors, packages, value of declaration etc, at paypals message when you pay to us.Terms of sales Thanks for your purchase, hope you have a pleasant in buying experience with us, we are extremely grateful if you could leave us positive feedback with 5 stars service rating at ebay. For example: item as described--- 5 star shipping time ----5 star Coummunication ----5 star Shippping and Handling---5 star. We are honest seller, we are doing best to be a BEST seller, thanks for your support.About usRefund or replacement request is available only the requests within 1 week after parcel received & returning the item as the same condition as received. Please contact us to request a return authorization. Your name, auction number, and reason for return should be included in the email. All items returned must contain all original packaging materials. Please repack the item carefully. Items returned will be tested and a new replacement will be shipped to the buyer immediately when found defective. In the event that a suitable replacement is not available then a refund will be issued. Shipping, handling and insurance fees are non refundable. If the item is found non-defective, the item will be sent back to the buyer at buyers expense. Items returned without RMA number will be refused and returned to the sender. Buyer is responsible for All Return Postage and Shipping Charges. Buyer is responsible for additional shipping costs for items that are returned refused and/or undeliverable. We do not accept any returns without an authorization number on the box or label it is being returned in.Contact us We are doing best to be a BEST seller , for some unexpected issues, such as the item does not work, or the item you buy wrongly, or you do not receive the item----any problem with the product or our service, please communicate with us at the first time by this way: Step 1: Contact seller Step 2: select a topic I have a question about using my item or I want to send the seller a message Step 3: Describe your question clearly, We believe communication is the best way to solve problem, thank you for your help and support. Any question, please kindly contact us!

Aus alten Sammlungsbestand abzugeben. 12E1 HALTRON 3 Stück OVP .Die Röhren sind neu und in der Originalverpackung.Optischer Zustand siehe Bilder, teil der Beschreibung. Aufgrund des Alters keine Garantie auf Funktion. Dies ist ein Privatverkauf, keine Rücknahme , keine Garantie . Rücksendung trägt der Käufer.Mit Abgabe des Gebotes haben Sie die Bedingungen akzeptiert. From old collection stock to give.12E1 HALTRON, 3 Pcs. Original packaging.Optical condition see pictures, part of the description. Due to age no warranty on function.The buyer bears return shipping.This is a private sale, no return , no warranty .By placing a bid you have accepted the conditions. Due to the current situation no shipping to Russia/ China. Worldwide shipping possible, inquire beforehand.