VO-BB - 20 YEARS OLD!

DanG · Posted: Fri Jan 23, 2009 3:07 pm Post subject:

Thanks Diane for the tip I think I got it to work for me. Tom thanks for the info on this guy I will watch out for that name. So Lance can I at least get 1 tube. I am looking at the Tung Sol I think it's like $16 new type tube and see how that sounds compared to the other chinese tube but here's a little sound byte I put in here with the stock tubes http://voice123.com/dangough

DanG · Posted: Sat Jan 24, 2009 10:19 am Post subject:

Hey Lance that guy has some pretty good prices and tubes thanks.

DanG · Posted: Sun Jan 25, 2009 11:37 am Post subject:

Well, I went out and ordered the Tung-Sol 12AX7 standard tube but will try the gold pin later on since I heard the gold pin doesn't have as much gain as the standard tube. I'll get both of them and see. I was also looking at the JJ Tesla's but not really sure if it really the tesla it is the new stock and found one for less than $10. The Tung-Sol I got was less than $18 including shipping.

Lance Blair · M&M Joined: 03 Jun 2007 Posts: 2281 Location: Atlanta

The new production Sensor 'Tung Sol' is a good match for both the MPA and the v67g. Don't bother with the gold pin version. I have both and use the regular one - hotter output and the same sound. The JJ you found is probably the new production as well.
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DanG · Posted: Sat Jan 31, 2009 7:46 pm Post subject:

Hey Lance, I just put in that Tung-Sol and it sounds ok. I was just wondering about how long these tubes take to burn in? or do they not have to burn in.

Mike Sommer · Posted: Sun Feb 01, 2009 3:23 am Post subject:

There really is no "Burn In" time with tubs like there is with capacitors, particularly oiled filled caps where the sound will improve. But what is considers burn in with tubes is really just finding out if there are any dudes or failures, this is usually takes 8 to 12 hours with a typical load. When you plug in a tube that's generally as good as it's going to sound.

So if you're not liking the sound of a particular tube it's time to move onto the next tube.

DanG · Posted: Sun Feb 01, 2009 9:59 am Post subject:

Thanks Mike for the input I will try something else in the future. The stock chinese tube actually sounded better had better gain range than the Tung-Sol which started to give me feedback when I put in some gain in the analog output. I did buy some new cables and that could be the problem. I will do some more tests to find out. It's a big day here today for everyone in Arizona. Go Cardinals!

Lance Blair · M&M Joined: 03 Jun 2007 Posts: 2281 Location: Atlanta

Sorry the Tung Sol didn't work out for you. My JJ just went microphonic today after less than a year. It's NOS or nothing for now.
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Skype: globalvoiceover
and now, http://lanceblairvo.com the blog is there now too!

DanG · Posted: Mon Feb 02, 2009 1:57 pm Post subject:

When I was researching the tubes I came across that term microphonics, which came up a few different times but without explanation.
What do you mean when your tube goes microphonic on you?

Lance Blair · M&M Joined: 03 Jun 2007 Posts: 2281 Location: Atlanta

This explains it a bit:
http://en.wikipedia.org/wiki/Microphonics

The tube is sensitive to vibrations and thus becomes a sort of microphone in itself. If you tap the top of the MPA gold and hear a pinging noise through the signal very clearly, you've got a dud. When it's really bad, you get straight up feedback, as yours is doing.
_________________
Skype: globalvoiceover
and now, http://lanceblairvo.com the blog is there now too!

DanG · Posted: Mon Feb 02, 2009 10:58 pm Post subject:

Well that is a bummer. I will send it back and get a new one to replace it. I got it on Ebay, I have 30 days to return it but have to pay the shipping of course.

DanG · Posted: Mon Feb 02, 2009 11:11 pm Post subject:

When I was researching for tubes I came across a website for tubes that I thought was a good store. Anyways this guy comes into my work tonight with a T-shirt with a tube on it showing all the parts of the tube. So of course I asked him about the T-shirt and he tells me he works part time at a tube store so I deffinatley want to know where it is and he tells me the name of the place and it's right down the street from me. Well itjust so happens to be one of the sites I searched around for and put in my fav's. so here is the store site http://www.tubesandmore.com/ This place is right by my house niiiiiiiiiiiiice! I wish I knew this place was around a week ago but I will be supporting this local business in my neighborhood.