C CheapSlider Member Jan 14, 2008 #21 Very comprehensive valve data site with a section on tube number systems 405 Line Alive has a technical page: "Decoding Valve, Transistor and CRT Numbers" BVA = British Valve Association (- a cartel of British valve manufacturers)
Very comprehensive valve data site with a section on tube number systems 405 Line Alive has a technical page: "Decoding Valve, Transistor and CRT Numbers" BVA = British Valve Association (- a cartel of British valve manufacturers)
JimB Super Moderator Most Helpful Member Jan 14, 2008 #22 For a place to advertise your old valves, I suggest here: https://www.vintage-radio.net/forum/forumdisplay.php?f=27 Lots of enthusiasts of old stuff. However, read the stickies. The site is run very meticulously to the the point of being stifling in my opinion. YMMV. JimB Last edited: Jan 14, 2008
For a place to advertise your old valves, I suggest here: https://www.vintage-radio.net/forum/forumdisplay.php?f=27 Lots of enthusiasts of old stuff. However, read the stickies. The site is run very meticulously to the the point of being stifling in my opinion. YMMV. JimB
W whiz115 Member Jan 15, 2008 #23 Nigel Goodwin said: I suspect younger people probably don't know about what the valve numbers mean! Click to expand... well you're wrong...some of us know much more about valves than about transistors!
Nigel Goodwin said: I suspect younger people probably don't know about what the valve numbers mean! Click to expand... well you're wrong...some of us know much more about valves than about transistors!
Brian Hoskins New Member Jan 15, 2008 #25 3v0 said: For a few seconds I was thinking about why you were attempting on unload valves as in water or gas valves. LOL you are talking about tubes. First good chuckle I have had all day! Needed that Click to expand... ... and my immediate thought was valves in a car engine. It's sort of on the brain cos I've had to adjust the clearances on mine very recently! Brian
3v0 said: For a few seconds I was thinking about why you were attempting on unload valves as in water or gas valves. LOL you are talking about tubes. First good chuckle I have had all day! Needed that Click to expand... ... and my immediate thought was valves in a car engine. It's sort of on the brain cos I've had to adjust the clearances on mine very recently! Brian
chemelec Well-Known Member Jan 16, 2008 #26 Valves that have broken pins are unlikely to be wanted by anyone, especially considering shipping costs. Also valves that are really old may no longer be very good. Over the years they can lose some of the vacuum in them, degrading the quality. And used tubes are definately "iffy", especially if you can't test them for performance. European = North America (According to me 1964 GE Manual. EF22 = 7G7 EB34 = 6H6 EF37A = 1620 EF36 =6J7 EBC33 = 6Q7-3 Gary ****************************************** Thunderchild said: to mention the first few: BVA - X143 (EF22 - MULLARD) MULLARD - EL32 MULLARD - EB34 (X2) MULLARD - EF37A (x3) + 1 WITH BROKEN CENTRE PIN MULLARD - EF36 MULLARD EBC33 MULLARD - ECH35 USED BROKEN CENTRE PIN MULLARD - ECC33 MULLARD - EF8 MULLARD EF9 (X2) Click to expand...
Valves that have broken pins are unlikely to be wanted by anyone, especially considering shipping costs. Also valves that are really old may no longer be very good. Over the years they can lose some of the vacuum in them, degrading the quality. And used tubes are definately "iffy", especially if you can't test them for performance. European = North America (According to me 1964 GE Manual. EF22 = 7G7 EB34 = 6H6 EF37A = 1620 EF36 =6J7 EBC33 = 6Q7-3 Gary ****************************************** Thunderchild said: to mention the first few: BVA - X143 (EF22 - MULLARD) MULLARD - EL32 MULLARD - EB34 (X2) MULLARD - EF37A (x3) + 1 WITH BROKEN CENTRE PIN MULLARD - EF36 MULLARD EBC33 MULLARD - ECH35 USED BROKEN CENTRE PIN MULLARD - ECC33 MULLARD - EF8 MULLARD EF9 (X2) Click to expand...