/r/tubeporn

Photograph via snooOG

A place for Audiophiles, Guitarists, Engineers, or technology enthusiasts to share pictures, stories, or videos having to do with Vacuum tubes or ask questions, opinions and advice about tube electronics or the inner workings of tubes.

Message one of the Mods if you would like flair. If you do not receive your flair or get an answer back in the time you would like, try a different Mod.

Tubes are sexy, show us your tuuuuuuubes.

/r/tubeporn

881 Subscribers

7

Question about primaluna

3 Comments
2023/06/29
18:50 UTC

3

DIY Curve Tracer for Vacuum Tubes

1 Comment
2022/12/08
21:07 UTC

9

My KT88 SE amp with a regulated PSU

5 Comments
2022/03/08
18:14 UTC

26

For the lucky 777 people here, some glowing KT88's

2 Comments
2021/02/12
04:02 UTC

15

6v6 Maggy working a double shift tonight

0 Comments
2020/07/19
05:06 UTC

7

Collection of European tubes...

0 Comments
2020/02/15
09:10 UTC

8

A voltage regulator gas tube with current upto 250mA!!! Almost 11 inches long, with a Z700U on top of it. My biggest & smallest cold-k tubes.

3 Comments
2019/11/19
21:34 UTC

7

Secondary emission used to create better linearity: 26A7. Works off 26.5V, audio power output and probably relay use for plane systems.

1 Comment
2019/09/19
02:59 UTC

5

28D7 28V supply curves, it's intended working range. So ugly, it's beautiful ❤️

3 Comments
2019/09/12
18:23 UTC

3

Need to change my tubes

I have a blackstar HT club 50 and I need to replace my tubes, I have never done this before and I was wondering if I should use the stock tubes from blackstar or if there are better tubes I should get. Does anyone have any input?

1 Comment
2019/08/21
19:33 UTC

4

28D7: Fulfilled a role of a transistor before they existed.

2 Comments
2019/08/08
05:42 UTC

10

20P3 & 10P13. Same cathode and grids apparently, but look at the difference :) 20P3 is a gorgeous tube in person.

3 Comments
2019/08/03
19:41 UTC

5

Small noval tube with 220mA/V GM, 11.3W heater and 6A pulses...

0 Comments
2019/07/05
01:14 UTC

8

Vacuum Tube TV - How would I find someone who can use this?

Sorry if this is not the right subreddit for this. I will delete the post if it is not. My wife has an old TV from the late 60's or early 70's that uses vacuum tubes. See pics here: https://imgur.com/a/VPHHIYd . Almost all of the tubes light up when it is plugged in but the picture tube does not show anything. Does anyone know of any kind of old technology clubs or groups near Kansas City that would have any use for something like this? Should I just try to sell the tubes on ebay? How would I test to see which are good? I hate to just junk it if there is someone that could make use of it or the parts.

5 Comments
2019/06/04
18:58 UTC

11

Excuse me, what the fuck?

2 Comments
2018/12/12
22:40 UTC

10

Enjoying the glow, just completed my build of an Elekit TU-8200 amplifier.

2 Comments
2018/11/15
16:12 UTC

1

Question about mullard tubes

Just got a pair mullard m8100’s in the mail, put them in my little dot mk II and one of the tubes has horrible static, if I switch the tubes the static follows to the other side. Does this mean that the tube is dead or is it fixable?

2 Comments
2018/08/14
20:12 UTC

11

After the rebuild with McShane kits. I bought this and the Citation 1 at a yard sale a couple decades ago for $8.00. Feel free to hate me.

4 Comments
2018/08/13
01:26 UTC

6

Late 70’s SVT. Six 6550 power tubes!

1 Comment
2018/05/06
06:19 UTC

14

Found a near mint 500C this weekend

7 Comments
2018/04/16
14:27 UTC

16

My father retired after 43 years working for the same company and he is a great dad... So I made him this SET amp based on the Mikael Abdellah KT88 circuit.

3 Comments
2017/12/31
20:10 UTC

9

Time for The Collection to Go

2 Comments
2017/09/07
00:33 UTC

3

Dual 572b Vacuum Tube Tesla Coil

0 Comments
2017/05/24
12:40 UTC

18

I designed and built a tube amp a few years ago. It sounds very good.

2 Comments
2016/12/04
07:52 UTC

5

I just love that glow...

0 Comments
2016/09/11
01:05 UTC

4

Pics from recently completed phono preamp build

2 Comments
2016/08/26
15:28 UTC

5

Aikido Cathode Follower Pre (xpost /r/diytubes)

0 Comments
2016/05/20
17:46 UTC

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