Triode Prüfung bei/tested at Ua 250V Ug1 -1,9V Uf 6,3V Ia/S #1-5,2/4,9mA #2-7,6/6,4mA #3-6,7/5,0mA #4-NIBPentode Prüfung bei/tested at Ua/Ug2 250V Ug1 -7,0V Uf 6,3V Ia/Ig2/S #1-41/2,1/8,0mA #2-47/2,8/8,2mA #3-50/2,6/8,8mA #4-NIB S=Steilheit mA/VUg1/mutual conductanceNummerierung der Röhren in den Bildern von links nach rechts. Nummern sind in den Schachteln vermerkt. Numbering of the tubes in pictures from left to right. Numbers are noted in the boxes. Innerhalb einer Woche können Artikel für den Versand zusammengefasst werden (Versand am folgenden Montag) - within one week items can be combined for shipment (shipment the following Monday)Sicherer Versand gewährleistet/secure shipping guaranteed. Wegen mehrer Anfragen: mein Prüfgerät ist Mikro-Kontroller basiert.Quellen (Ua,Ug2,Ug1,Uf +-1%) - Strommessungen +-1%.p.s. Eigenbau, bin Elektroniker . . Because of several requests: my tester is micro-controller based.Sources (Ua,Ug2,Ug1,Uf +-1%) - current measurements +-1%.p.s. own construction, I am an electronics engineer . .

2 X NEW ECL81 RFT EU SELLER FAST SHIPPING DESCRIPTIONYou are bidding 2 X NEW ECL81 RFT EU SELLER FAST SHIPPING Tubes 100% new old stock! All photos original. Hard to find! Bid now! Dont miss it! Bidding for 2 tubes. SHIPPINGItems will be shipped from Latvia via Latvian Post within 2-4 business days after payment is received and verified. It takes about 14-20 days. Around EU it takes 5-7 days. We combine multiple items to save on shipping! Please e-mail us and check price. Returns accepted! If you receive an item you did not order or if an item you ordered is received damaged or defective, we will refund you the price you paid for it or replace it with identical one.Please write if You need different quantity and we will discuss.If you are looking for others models of tubes please ask me. PLEASE SEE MY OTHER ITEMS.

2 X NEW ECL81 RFT EU SELLER FAST SHIPPING DESCRIPTIONYou are bidding 2 X NEW ECL81 RFT EU SELLER FAST SHIPPING Tubes 100% new old stock! All photos original. Hard to find! Bid now! Dont miss it! Bidding for 2 tubes. SHIPPINGItems will be shipped from Latvia via Latvian Post within 2-4 business days after payment is received and verified. It takes about 14-20 days. Around EU it takes 5-7 days. We combine multiple items to save on shipping! Please e-mail us and check price. Returns accepted! If you receive an item you did not order or if an item you ordered is received damaged or defective, we will refund you the price you paid for it or replace it with identical one.Please write if You need different quantity and we will discuss.If you are looking for others models of tubes please ask me. PLEASE SEE MY OTHER ITEMS.