So I've stumbled upon a DHT with some good initial specs and don't want to say anything and make the price skyrocket. Here is a picture of the plate curves.
Max Vp = 1000
Max Pd = 65 watts
Max Ip = 155 Ma
Max Ig = 25 Ma
Mu = 25
Gm = 6500
Anything stand out that makes this tube not suitable for SE? Plots and loadlines aren't really my thing so I'm wondering how you get a rough idea of the Rp? Thanks.
An externally hosted image should be here but it was not working when we last tested it.
Max Vp = 1000
Max Pd = 65 watts
Max Ip = 155 Ma
Max Ig = 25 Ma
Mu = 25
Gm = 6500
Anything stand out that makes this tube not suitable for SE? Plots and loadlines aren't really my thing so I'm wondering how you get a rough idea of the Rp? Thanks.
dowdylama said:
Hi Jim,
Besides lighting them up and confirming the shape and location of the grid=0V line, not yet. I have been considering a MI-9355 sort of amp for them, perhaps even with a clone of the original input TX. 14k a-a with a 1kV B+ should load them nicely. I have not decided on making it a stand-alone or if it should have its driver amp on board.
They're competing with a half-lit 304TL power final...the higher mu is nice, but at the expense of higher plate Z. But if running horns well above cut off, the high output Z( v. the 152TL ) would not be the issue it is with air suspension and bass reflex, eh?
cheers,
Douglas
Bandersnatch said:
No problem. I can run my GU-50 red, then adjust bias back, and measure still the same curves.
Transmitting tubes, especially for military mobile transmitters were supposed to run on an edge. I once saw a manual for a military transmitter that suggested to de-tune antenna to decrease transmitting range, until anodes got red.
However, it is a nickel alloy, not pure nickel, designed by Telefunken for Luftwaffe transmitters (LS-50 tubes).
Gee, Jack Thanks man! I see your .02 worth of useless input is as good as mine. Just because I dont post regulary doesnt mean I dont what a tube curve is, or how to use one. The comment was refering to the $10.00 dollars that it would take to acquire some HY51A tubes from Vacuumtubes.net. But because you are so much more educated then some of us, I will be sure to direct any question I have to you my friend! Cheers
Vargas said:
I just hope that you know what a Vargas drawing is, in particular, a curvaceous Vargas drawing. Vargas was Esquire's pre-eminent artist. I will not post for fear of being sin-binned again. Perhaps you didn't get the reference.
Mirthfully yours in song and always cranky, I remain sincerely...thankfully our barber shop always hides the men's magazines on Saturday mornings...
Some of you people need to get a life! To be able to identify a tube based on its plate curves
I wasn't aware Radio Electric Supply was running www.vacuumtubes.net until they sent me an email. Oh well the search for another hidden gem continues....
I wasn't aware Radio Electric Supply was running www.vacuumtubes.net until they sent me an email. Oh well the search for another hidden gem continues....
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