what Dave said about Thoriated tungsten - JJ Triode

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Topic - is it advisable to run the heater lower than specs? - jarthel 19:50:18 07/05/06 (37)

Re: is it advisable to run the heater lower than specs? - Victor Khomenko 08:34:23 07/06/06 (0)

That's not lower than spec - ffrr 01:07:28 07/06/06 (3)

not all tube datasheet has a +/- on the heater specs though - jarthel 03:36:54 07/06/06 (2)

Re: not all tube datasheet has a +/- on the heater specs though - ffrr 04:07:48 07/06/06 (1)

Re: not all tube datasheet has a +/- on the heater specs though - PÃ¤r 06:30:19 07/06/06 (0)

My call; - Poindexter 19:59:09 07/05/06 (30)

On indirectly heated tubes... - Ivan303 20:04:36 07/05/06 (29)

Yes; my apologies. - Poindexter 10:03:30 07/06/06 (1)

Re: never used a DHT - Ivan303 10:12:59 07/06/06 (0)

according to my reading, it all depends upon whether.... - radiance 21:59:22 07/05/06 (26)

2A3, 300B, 45 all have semiconductor cathodes. - Mark Kelly 17:32:42 07/06/06 (12)

OOOPS! APOLOGIES!! I take it back, you're right. Here's the scoop: - radiance 18:30:13 07/06/06 (9)

really need to work on facts before posting - Ed Sawyer 10:00:56 07/07/06 (2)

Thanks, Ed, you're absolutely right; I recognized I needed.... - radiance 11:06:39 07/07/06 (1)

Re: If I may help... - Dave-A 19:50:03 07/07/06 (0)

10 - Mark Kelly 18:56:19 07/06/06 (5)

Just to confuse things... - jub_jugs 01:41:47 07/07/06 (3)

Yeah, long plated some WE's - Ivan303 07:22:17 07/07/06 (2)

if you were designing the perfect SET tube, would you... - radiance 11:11:26 07/07/06 (1)

Re: Designing the perfect SET tube, I would... - Dave-A 19:20:42 07/07/06 (0)

thank you, I have saved the data sheet; I had found... - radiance 21:06:38 07/06/06 (0)

thanks for the cool spectrum, Mark, but there is a..... - radiance 17:56:30 07/06/06 (1)

continued apology for my really ignorant post....... - radiance 23:13:46 07/06/06 (0)

Re: Thoriated tungsten - Dave-A 07:37:34 07/06/06 (12)

Are you sure about that? - Mark Kelly 17:45:12 07/06/06 (7)

Re: Have you looked at your 211's....? - Dave-A 19:34:51 07/07/06 (6)

I'm not picking nits. - Mark Kelly 20:18:26 07/07/06 (5)

Re: I'm sorry I forgot about the drains... - Dave-A 21:09:14 07/07/06 (4)

Now I see the problem - Mark Kelly 23:06:23 07/07/06 (3)

Re: Another example - Dave-A 06:27:29 07/08/06 (2)

Just for consistency - Mark Kelly 16:11:40 07/08/06 (1)

Re: Just for my understanding... - Dave-A 09:34:21 07/09/06 (0)

wow, great questions!! don't know, but will find out. will..... - radiance 14:43:55 07/06/06 (0)

what Dave said about Thoriated tungsten - JJ Triode 10:13:44 07/06/06 (2)

hmmm.....there's a mystery here; when I get the time to dissect.... - radiance 17:35:38 07/06/06 (0)

Re: Yes, 845 and 211 both. - Dave-A 12:50:02 07/06/06 (0)

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what Dave said about Thoriated tungsten - JJ Triode 10:13:44 07/06/06 (2)

hmmm.....there's a mystery here; when I get the time to dissect.... - radiance 17:35:38 07/06/06 (0)

Re: Yes, 845 and 211 both. - Dave-A 12:50:02 07/06/06 (0)