814 tube

[rexy 1948]

May be anybody used these tubes? Are they good in the sound?

 

[battradio]

Never tried them , http://www.scottbecker.net/tube/sheets/049/8/814.pdf .

The trouble would be finding a matching output transformer .

 

[PakProtector]

hey-Hey!!!,
Type 814 will work with ordinary output TX's. What is needed is a driver stage capable or delivering grid current. 814's will not do much without taking g1 positive. It should sound very nice; it is a Thoriated Tungsten cathode the same size as an 845.
cheers,
Douglas

 

[gadget73]

wow, that thing should be capable of some serious power judging by the specs. 1500v on the plate and 65w plate dissipation? Wired up right, that should make a pretty killer SEP amp tube. Could you drive that with something like an EL83 ?

 

[rexy 1948]

I think about triod connection...

 

[gadget73]

specs say the G2 max voltage is only 300 though. Not going to get nearly as much power out of it at that voltage.

 

[rexy 1948]

Wrote that it is 400 volts...

 

[PakProtector]

hey-Hey!!!,
It won't matter if you rig triode or pentode; it will not deliver much power w/o grid current. IMO getting a pentode ironed out would deliver better results than strapping that as a triode...but there are lots of tubes that are easier to work with...
cheers,
Douglas

 

[rexy 1948]

Many thanks )