any idea what kind of tube this is? - Page 1
Forum section: electronics / general

author: slburris
author_rank: Frequent Contributor
timestamp: September 30, 2010, 03:07:13 pm
content: A weird tube a colleague showed me at work. It has two electrodessticking out of the top. Any idea what this is? This is from hisfather's junk collection that he's going through.Scott

author: Time
author_rank: Frequent Contributor
timestamp: September 30, 2010, 03:45:21 pm
content: Looks like some kind of thyratron variation or trigatron. Are there markings?

author: slburris
author_rank: Frequent Contributor
timestamp: September 30, 2010, 04:07:18 pm
content: Quote from: Time on September 30, 2010, 03:45:21 pmNo markings at all. It was found in a box with some ancient lightning arrestors,but there's no other information.I've been scrolling through pictures of vacuum tubes on Google hoping to see somethingwhich looks similar, but no luck.Scott

author: Time
author_rank: Frequent Contributor
timestamp: September 30, 2010, 04:10:07 pm
content: You could e-mail someone over atwww.tubecollector.organd ask. They might actually want to purchase the device if its something thats rare or they don't have. I will be interested to know once you find out.

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: September 30, 2010, 04:48:06 pm
content: Looks like the grandmother of the 829 ... dual anode tube.http://www.flickr.com/photos/schlachet/371670202/#

author: JohnS_AZ
author_rank: Frequent Contributor
timestamp: September 30, 2010, 04:56:54 pm
content: Nothin' like a good internet scavenger hunt.http://compare.ebay.com/like/330401293845?var=lrgimg&sort=BestMatchAnd collector value wise, it doesn't look like you hit the lottery.

author: Time
author_rank: Frequent Contributor
timestamp: September 30, 2010, 05:11:04 pm
content: Other than the 2 electrodes sticking out the top, nothing leads me to believe this is an 829.

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: September 30, 2010, 05:17:24 pm
content: And so it is an 829B ( compatible )http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=330401293845#vi-contentThanks JohnS_AZ

author: Time
author_rank: Frequent Contributor
timestamp: September 30, 2010, 05:19:32 pm
content: No, its not an 829.Here, this has to be it:http://www.r-type.org/exhib/aaa0001.htmStill a double beam tetrode though.

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: September 30, 2010, 05:25:51 pm
content: Quote from: Time on September 30, 2010, 05:19:32 pmYes I agree , there is at the first picture posted , one pin really fat ,but it needs to seek for it , so to notice that its there ..

author: Time
author_rank: Frequent Contributor
timestamp: September 30, 2010, 05:31:12 pm
content: Its the superior european replacement of the 829.On ebay, the QQV06-40A is going for more than I would ever pay for something so archaicly useless.

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: September 30, 2010, 05:39:49 pm
content: Quote from: Time on September 30, 2010, 05:31:12 pmNo shit ...On my builds I had use 6C4 5763 & 6146 , the 829 had an complex output like coils and capacitors ,so I never got to it .Soon enough I started working with PLL and MRF transistors .. and so no more tubes .. other than the ones as final stage 800W to 3KW output or more.

author: slburris
author_rank: Frequent Contributor
timestamp: September 30, 2010, 05:48:37 pm
content: Quote from: Time on September 30, 2010, 05:19:32 pmYes, this looks like the item. Fascinating, I'll pass the info on to my friend!Scott

author: tecman
author_rank: Frequent Contributor
timestamp: September 30, 2010, 06:15:43 pm
content: I've seen them before. Either a dual triode or tetrode for push-pull RF power amplifier. Was a big item in WW2 for small portable radios.paul

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: September 30, 2010, 06:52:12 pm
content: The 829 needs about 600V DC on the anode, so it does not work out for portable use.

author: blackdog
author_rank: Frequent Contributor
timestamp: September 30, 2010, 08:33:17 pm
content: Hi,I am shure its the QQE 06/40 From Philips, it can deliver 50 WATTS on 500MhzDatasheet:http://www.datasheetarchive.com/pdf-datasheets/Datasheets-3/DSA-53984.htmlBram