Author Topic: Hey Gewehr98... (Read 4005 times)

mtnbkr · « **on:** September 15, 2008, 04:21:57 PM »

Look what I got. It's an Eimac 4PR1000A

I have two. Dunno if they work. They were part of a "Mystery Box" raffle at my radio club meeting tonight. Also got a bunch of misc components (diodes, resistors, etc).

Film canister for scale.

Chris

Gewehr98 · « **Reply #1 on:** September 15, 2008, 04:40:40 PM »

Sweet!

Are you going to mod your transmitter to incorporate them? grin

Although they're designed for something different, I know of a couple tube audio amps that were built using those monstrosities.

Yup, a high-power HF-output tube used in an audio amp. And I thought all my Svetlana 6550s warmed up the living room on cool evenings! shocked

I just sold a new-in-box pair of those Eimacs on eBay a few months ago. Wish I'd known you were in the market for some...

Perd Hapley · « **Reply #2 on:** September 15, 2008, 04:59:56 PM »

You two have fun now.

mtnbkr · « **Reply #3 on:** September 15, 2008, 05:01:14 PM »

I'm not in the market for them or any tubes. They came in the "mystery box" that was raffled off tonight.

One is definitely dead, it has loose filaments floating around. I'll probably put it on a block of wood in my workshop. The other will probably go back into the mystery box for next week...or not.

Chris

ArfinGreebly · « **Reply #4 on:** September 15, 2008, 05:04:25 PM »

Did you get a bottle of grid leak bias to go with that?

cheesy

Gewehr98 · « **Reply #5 on:** September 15, 2008, 05:52:09 PM »

Aww, don't put it back in the box.

Make a filament power supply for it (think 6-volt wall wart), and turn it into a night light. Use one of those day/night photocell wall outlet switches so it only runs at night. (Been there, done that...) Cheesy

S. Williamson · « **Reply #6 on:** September 15, 2008, 07:11:12 PM »

NERRRRRDS!!!

grin

Gewehr98 · « **Reply #7 on:** September 15, 2008, 10:09:34 PM »

Yeah, but this nerd enjoys the sound of filaments, plates, and grids - in nearly every room of the house, save for the commode. (Thinking about that, too...) grin

mtnbkr · « **Reply #8 on:** September 16, 2008, 02:01:35 AM »

Who needs electronics to get earth shattering sounds in the commode. Wink

Chris

richyoung · « **Reply #9 on:** September 16, 2008, 05:01:17 AM »

Quote from: Gewehr98 on September 15, 2008, 03:40:40 PM

Sweet!

Are you going to mod your transmitter to incorporate them? grin

Although they're designed for something different, I know of a couple tube audio amps that were built using those monstrosities.

Yup, a high-power HF-output tube used in an audio amp. And I thought all my Svetlana 6550s warmed up the living room on cool evenings! shocked

I just sold a new-in-box pair of those Eimacs on eBay a few months ago. Wish I'd known you were in the market for some...

6550! Phillisitine! (Unless you just need lots of cleAN headroom...) 6550s, when there are 6l6GCs, EL34s, and KT66s around?

K Frame · « **Reply #10 on:** September 16, 2008, 05:11:55 AM »

God, the reek of geek is just oppressive right now...

Need to bring in some pretty women to scare all the geeks back into their holes... laugh

seeker_two · « **Reply #11 on:** September 16, 2008, 07:15:46 AM »

Quote from: Gewehr98 on September 15, 2008, 09:09:34 PM

Yeah, but this nerd enjoys the sound of filaments, plates, and grids - in nearly every room of the house, save for the commode. (Thinking about that, too...) grin

If you need vacuum tubes to operate your commode, you really should give up plumbing.....

Harold Tuttle · « **Reply #12 on:** September 16, 2008, 07:24:55 AM »

GFI man say: make sure you have a good earth on your tube powered commode light

Gewehr98 · « **Reply #13 on:** September 16, 2008, 07:25:00 AM »

For Mike:

AJ Dual · « **Reply #14 on:** September 16, 2008, 08:28:40 AM »

Either of you have a nixie clock?

mtnbkr · « **Reply #15 on:** September 16, 2008, 08:32:43 AM »

Nah, too expensive. Neat though.

Chris

AJ Dual · « **Reply #16 on:** September 16, 2008, 08:37:59 AM »

When my grandfather died in 2003, he had tons of tube and HAM stuff. (Engineer for Kearny & Trekker, IFR Flight Instructor, homebuilt planes etc...)

One of the things I should have grabbed was one of his older osilioscopes. I really had no use for one, but I never imagined someone would make this either:

http://www.youtube.com/watch?v=6wjl1uMBNkc

mtnbkr · « **Reply #17 on:** September 16, 2008, 08:39:59 AM »

That's pretty cool.

Chris

AJ Dual · « **Reply #18 on:** September 16, 2008, 08:55:02 AM »

Check out what this kid did with a C program to encode waveforms beyond hearing range and just ran it through his soundcard! R-L into X-Y!

Holy....

http://www.youtube.com/watch?v=s1eNjUgaB-g&feature=related

From the comments, he's just a kid/teen too, which makes me feel stupid. Granted, I've been with women, and had kids... cheesy

but still... stupid. undecided

Headless Thompson Gunner · « **Reply #19 on:** September 16, 2008, 09:00:02 AM »

I've seen some pretty cool XY oscilloscope stuff before, but that thing is just plain impressive.

Harold Tuttle · « **Reply #20 on:** September 16, 2008, 09:41:07 AM »

we used to plug a stereo into a tvs yoke

Gewehr98 · « **Reply #21 on:** September 16, 2008, 09:51:56 AM »

I actually bought this kit:

http://www.cathodecorner.com/

I even bought the proper o-scope cathode ray tube.

I just haven't assembled it yet, because I wanted to build it in a clear acrylic case.

Then, of course, the designer came up with this variant:

http://www.cathodecorner.com/scra/index.html

AJ Dual · « **Reply #22 on:** September 17, 2008, 06:29:52 AM »

Steampunk for me is kind of "meh", I run hot and cold on it. Some of it is cool, much is simply absurd.

30's, 40's, 50's, and even 60's and 70's "Retro-Future" is what does it for me. Taking the old tech and putting it as the "face" or UI for modern guts is cool. At least in the electronic era, many people had visions of what would be possible, and wished their hardware could do it.

never_retreat · « **Reply #23 on:** September 17, 2008, 06:53:59 AM »

This is fitting.

The Annoyed Man · « **Reply #24 on:** September 17, 2008, 07:56:10 AM »

Hmmm... nice looking stereo.

I don't own any tube stereo equipment... but i own several tube guitar amplifiers.

Including a Carvin V3 with Ruby EL34 BSTRs in it...

AND, a 30 year old RCA 12AX7 driving the gain in the preamp :-)

only bummer is: it's the only one i have.... when it goes out, it's back to new manufactured tubes :-(

/sigh

Nothin like the glow of hot tubes on a stage to get your guitar-muscles pumping.

News:

Author Topic: Hey Gewehr98... (Read 4005 times)