CV315/4304CB/VT62 - RAF Transmitter
#16
A nice find ! Make sure you find the grid and anode dissipator caps before doing anything ! I've done an amp with 834 which is the same as 4304 but has a large chunk of graphite as an anode . This ran in zero bias (grid at 0V) . Running at 65mA with James 6123HS on the 5k tap driven by a choke-loaded cathode follower driver , a good few watts is achievable . In this configuration a low impedence driver with plenty of current on tap is required . Never used these in A2 but would expect damping factor may be an issue as inevitably your Rload will be lower than your Ra . If you are lucky enough to afford them , Dave Slagle can provide a 15K SE OPTX with offset cancellation winding . Then you can run these in A1
cheers
Nic
cheers
Nic
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#17
Cheers Nic
Is that a 6080 you've got running as a cathode follower there?
That's what I was thinking of doing myself.
Steve
Is that a 6080 you've got running as a cathode follower there?
That's what I was thinking of doing myself.
Steve
Sgt. Baker started talkin’ with a Bullhorn in his hand.
#20 Re: CV315/4304CB/VT62 - RAF Transmitter
Hi, I am interested in this tube. Does anyone have a pair for sale?
What tube are you guys using to drive an amp with the 4304
What tube are you guys using to drive an amp with the 4304
#21 Re: CV315/4304CB/VT62 - RAF Transmitter
Anyone else having trouble seeing some of the pics in this thread? For instance the pics in Steve's 1st & 3rd posts?
The rest of the forum all seems ok...
Maybe I need to flush a cache or something....
The rest of the forum all seems ok...
Maybe I need to flush a cache or something....
#22 Re: CV315/4304CB/VT62 - RAF Transmitter
If I right click and 'open image in new tab' I get
Http/1.1 Service Unavailable
Http/1.1 Service Unavailable
#23 Re: CV315/4304CB/VT62 - RAF Transmitter
They were probably hosted on an ancient mac. Com server that is no longer there
#24 Re: CV315/4304CB/VT62 - RAF Transmitter
Interesting thread, plus I think my Dad would have worked with these during his national service, so a bit of nostalgia value
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#26 Re: CV315/4304CB/VT62 - RAF Transmitter
I've got 4 of VT104 10E/215 (PT15) New Old Stock valves in war department boxes.
PT15 push pull anyone ?
PT15 push pull anyone ?
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)