I am selling these wonderful universal amplifiers and microphone preamplifiers from the TELEFUNKEN brand. They are the first model, the one with the square transformers that are undoubtedly the most desired on the market today, due to their more Vintage sound. There are vendors out there selling these modules as untested. These are recaped and tuned up, they work great. Import taxes and custom fees ARE NOT included in the price! Keywords: Telefunken, rca, siemens, valvo, sylvania, ge, mullard, genalex, philips, Electro-harmonix, sovtek, tung sol, amperex, brimar, Miniwatt, tungsram, rft, SQ, Tesla, Warm Audio neumann telefunken tab siemens tubetech stam behringer focusrite steinberg ssl rode akg brauner rme motu antelope native instruments audient yamaha dbx klark teknik tegeler ams neve rupert chandler limited igs audio ant bfe maihak malotki sitral Filtek wsw rft rfz veb funkwerk lomo lawo tbg

Prüfung bei/tested at Ua 250V Ug1 -2,0V Uf 6,3V Ia/S #1-8,1/5,5*8,5/5,9mA #2-10,5/5,4*11,6/6,5mA #3-8,1/5,4*9,3/5,3mA #4-9,8/5,3*11,9/6,3mA S=Steilheit mA/VUg1/mutual conductance Röhre #1,#2 Militärstandard (BWB) - tube #1,#2 military grade (BWB) Röhre #3 Telefunken mit Raute - tube #3 Telefunken with diamond.Nummerierung 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 . .