Has anyone had any experiences with 5514 power triodes ?
I've seen it described as an "upgraded" 811a with carbon anode and 7.5v filament.
I wonder if Steve S has any in his "stash" ?
5514 Power triode.
- pre65
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#1 5514 Power triode.
The only thing necessary for the triumph of evil is for good men to do nothing.
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
#2
nothing like that phil, sounds a promising valve
found this
found this
811 can only be run A2 in a SET amp as it has crazy-high mu of 160 . 5514 is a DHT but has mu of 6.5 according to the datasheet and 7.5V filament instead of the 6.3V filament of the 811 . 5514 is thoriated , the fils need to be run close to spec and the difference in mu leads me to believe 5514 and 811 are not at all compatible
- pre65
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#3
Hi Steve, I also found that quote, but the guy was wrong.
Mu on 5514 is about 145.
They are both similar spec apart from the filament voltage.
There are some on e-bay.
http://www.ebay.co.uk/itm/260869699308? ... 2872wt_932
Mu on 5514 is about 145.
They are both similar spec apart from the filament voltage.
There are some on e-bay.
http://www.ebay.co.uk/itm/260869699308? ... 2872wt_932
The only thing necessary for the triumph of evil is for good men to do nothing.
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
- pre65
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#5
I found quite a few posts from people wanting to use them as audio amplifier valves (tubes), but none that actually had.
http://www.nj7p.org/Tube4.php?tube=5514
http://frank.pocnet.net/images/undefined/5/5514.jpg
The 811a I'm obtaining from Andrew are Chinese, but as the transformer I'm getting to work the Tentlab filament modules is 12v the amp could be adjusted to take these here 5514s.
Food for thought.
http://www.nj7p.org/Tube4.php?tube=5514
http://frank.pocnet.net/images/undefined/5/5514.jpg
The 811a I'm obtaining from Andrew are Chinese, but as the transformer I'm getting to work the Tentlab filament modules is 12v the amp could be adjusted to take these here 5514s.
Food for thought.
The only thing necessary for the triumph of evil is for good men to do nothing.
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
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#7
Nothing to loose Phil.