Look what I found this weekend!

eapavant · 30th January 2006, 03:00 PM

I was cleaning out some of my grandfathers stuff this weekend and found about ten boxes of tubes! Lots of different stuff. 12ax7 12au7 6l6 813 are the only ones I can remember off hand. A few cool looking tubes with mercury in them. I am not sure what they are. Rectifiers? Then I found some really big ones. Three 4 1000a's a 4 400a and four 4 250a. Anyway I have always wanted to build a tube amp. So no I have no reason not to

Here is a pic. from one box.

6h5c · 30th January 2006, 04:18 PM

You are a lucky ****!

I'm jealous

This is like finding a treasure with an old map

The ones with mercury are most likely rectifiers. Be careful with them, both mechanically and electrically!

Regards,

Ray.

Peter M. · 30th January 2006, 04:35 PM

Congratulations with your find

Mercury rectifiers, I think I read some place the they should be kept vertical for a couple of days before applying voltage to them..not sure why, maybe the mercury in the wrong place could make a short between anode and cathode?
Anyone, please straight me out here.

i_should_coco · 30th January 2006, 07:52 PM

Quote:

Originally posted by Peter M.

Mercury rectifiers, I think I read some place the they should be kept vertical for a couple of days before applying voltage to them..not sure why, maybe the mercury in the wrong place could make a short between anode and cathode?
Anyone, please straight me out here.

Sort of - they need to be run on filaments only for a while (the interval varies from data-sheet to data-sheet). I reckon 15 mins to 1/2 hour should be fine. And yes, it is to make sure that there are no blobs of mercury to cause a short.

Regards,
Pete

beamnet · 30th January 2006, 07:58 PM

You could select a few tubes to make an amp, sell the rest to us for cheap and use the money to buy transformers and stuff!

Bas

poobah · 30th January 2006, 08:12 PM

That's very nice... now, I hate you.

SHiFTY · 30th January 2006, 09:01 PM

Cool!

Post a list of all the tubes here and someone will be able to tell you what to build

poobah · 30th January 2006, 09:17 PM

All of those tubes are very hazardous to the environment... send them to me and I will take care of them for you...

Original Burnedfingers · 30th January 2006, 09:39 PM

Quote:

All of those tubes are very hazardous to the environment... send them to me and I will take care of them for you...

I'll go one better than Rob. I'll pay postage and give you a few dollars to boot.

poobah · 30th January 2006, 09:52 PM

You're a dog Joe... I like dogs... but, you're still a dog!

30th January 2006, 04:18 PM	#2
6h5c One Seriously Addicted to Audio and Electronics diyAudio Member Join Date: Apr 2004 Location: Heerhugowaard	You are a lucky ***! I'm jealous This is like finding a treasure with an old map The ones with mercury are most likely rectifiers. Be careful with them, both mechanically and electrically! Regards, Ray. __________________ Gonna buy my little girl a pink soldering-iron The new DOS-CFP board is out!*

30th January 2006, 04:35 PM	#3
Peter M. diyAudio Member Join Date: Jan 2005 Location: Østfold	Congratulations with your find Mercury rectifiers, I think I read some place the they should be kept vertical for a couple of days before applying voltage to them..not sure why, maybe the mercury in the wrong place could make a short between anode and cathode? Anyone, please straight me out here. __________________ Note to myself: Never again use fingers to check if there still is voltage left in a capacitor...

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30th January 2006, 07:58 PM	#5
beamnet diyAudio Member Join Date: Jun 2004 Location: enschede	You could select a few tubes to make an amp, sell the rest to us for cheap and use the money to buy transformers and stuff! Bas

30th January 2006, 08:12 PM	#6
poobah diyAudio Member Join Date: Nov 2005	That's very nice... now, I hate you.

30th January 2006, 09:01 PM	#7
SHiFTY diyAudio Member Join Date: Jul 2002 Location: New Zealand	Cool! Post a list of all the tubes here and someone will be able to tell you what to build

30th January 2006, 09:17 PM	#8
poobah diyAudio Member Join Date: Nov 2005	All of those tubes are very hazardous to the environment... send them to me and I will take care of them for you...

30th January 2006, 09:39 PM	#9
Original Burnedfingers diyAudio Member Join Date: Nov 2002	Quote: All of those tubes are very hazardous to the environment... send them to me and I will take care of them for you... I'll go one better than Rob. I'll pay postage and give you a few dollars to boot.

30th January 2006, 09:52 PM	#10
poobah diyAudio Member Join Date: Nov 2005	You're a dog Joe... I like dogs... but, you're still a dog!

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