tube tester
Moderators: pompeiisneaks, Colossal
-
vibratoking
- Posts: 2640
- Joined: Tue Nov 10, 2009 9:55 pm
- Location: Colorado Springs, CO
Re: tube tester
So a closed filament is enough information for you for any tube?
Re: tube tester
Remember he is from NJ.... 
Re: tube tester
Figured I'd show my B&K tester. Got it when I came into some money a while back. Can't believe this thing still runs. Nice and simple for my purposes.
You do not have the required permissions to view the files attached to this post.
Re: tube tester
Hey if it lights up I can sell it as NOS
Re: tube tester
Yeah, works great. I've been considering selling it because I don't have any tubes die on me. Just test em when I get em and don't worry after that.
Re: tube tester
HeeBGB wrote:Hey if it lights up I can sell it as NOS
- Reeltarded
- Posts: 10189
- Joined: Sat Feb 14, 2009 4:38 am
- Location: GA USA
Re: tube tester
haha
A matched quad would be nice. More light.
A matched quad would be nice. More light.
Signatures have a 255 character limit that I could abuse, but I am not Cecil B. DeMille.
Re: tube tester
Hah! Had a DOH moment there. I don't sell tubes. Thing does give a good indication of a good one versus a not so good one though, but I wouldn't sell NOS stuff anyway. I have too much of a problem letting go. 
- randalp3000
- Posts: 667
- Joined: Mon Jan 09, 2012 11:11 pm
- Location: Holland Michigan
- Contact:
Re: tube tester
These are pretty good
[IMG:800:478]http://i1233.photobucket.com/albums/ff388/randalp3000/IMAG0084800x478.jpg[/img]
But I like this one much better now, I think plate current and resistance are very important to measure along with transconductance and emission. It cost me an amp or two but it was worth it.
[IMG:500:835]http://i1233.photobucket.com/albums/ff388/randalp3000/IMAG0191_zpsc522f3a9.jpg[/img]
[IMG:800:478]http://i1233.photobucket.com/albums/ff388/randalp3000/IMAG0084800x478.jpg[/img]
But I like this one much better now, I think plate current and resistance are very important to measure along with transconductance and emission. It cost me an amp or two but it was worth it.
[IMG:500:835]http://i1233.photobucket.com/albums/ff388/randalp3000/IMAG0191_zpsc522f3a9.jpg[/img]
Re: tube tester
I use a Longhin tubetester... very good one and quite reasonably priced
http://www.german-vintage-loudspeakers. ... esters.htm
Unfortunately the guy who was making these it's not longer with us, so I guess this testers can't be purchased anymore.
Mine can go up to 450V plate and there were many models... unfortunately not longer available.
http://www.remusic.it/index.php?MasterI ... 945d2fadab
http://www.german-vintage-loudspeakers. ... esters.htm
Unfortunately the guy who was making these it's not longer with us, so I guess this testers can't be purchased anymore.
Mine can go up to 450V plate and there were many models... unfortunately not longer available.
http://www.remusic.it/index.php?MasterI ... 945d2fadab
Re: tube tester
You run the same setup as I have. You will be very happy.randalp3000 wrote:These are pretty good
[IMG:800:478]http://i1233.photobucket.com/albums/ff388/randalp3000/IMAG0084800x478.jpg[/img]
But I like this one much better now, I think plate current and resistance are very important to measure along with transconductance and emission. It cost me an amp or two but it was worth it.
[IMG:500:835]http://i1233.photobucket.com/albums/ff388/randalp3000/IMAG0191_zpsc522f3a9.jpg[/img]
Word of advice. Use the maximatcher for fault testing before the Amplitrex. I've blown up my Amplitrex from a shorting EL34.
Fire on the bench is always exciting. Good customer service. It was fixed and back on the bench in a week. I forget if it was a software or power short that made it into a portable camp stove... But since you have the ability to test I recommend doing it.
Lets see what else... Computer mode.. Read the directions you have to open the windows in a certain order for proper testing. The brother label maker is awesome as well as printable test results. Download a .pdf print converter so you can convert the data sheets to email without a scanner.... Don't forget file maintenance when you save.. Label and make file folders so you can go back and find what you are looking for.
Last ... Make sure you select the correct tube and test. If not it will run the test anyway on most tubes. I've fried a few tubes that had lost the silk screening. Guess that they were.
Enjoy!
My Daughter Build Stone Henge