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DIY Stompboxes => Building your own stompbox => Topic started by: Mark Hammer on April 27, 2016, 02:46:23 PM

Title: Well THIS is interesting!
Post by: Mark Hammer on April 27, 2016, 02:46:23 PM
A regular over at MEF noticed this company producing NEW germanium devices.  Check out the list:  http://www.comsetsemi.com/en/searchprod.php?Products=Transistor

Here's his post:  http://music-electronics-forum.com/t41961-post420886/#post420886
Title: Re: Well THIS is interesting!
Post by: tonyharker on April 27, 2016, 02:56:13 PM
So which ones are Germanium in that list?
Title: Re: Well THIS is interesting!
Post by: Mark Hammer on April 27, 2016, 03:14:25 PM
Check the forum post that I linked to.  I honestly couldn't find anything on the corporate web-page, but apparently they are producing several devices with an AD or AS prefix.

I am naively assuming that, because of where he posted this news, those devices have some utility for us.
Title: Re: Well THIS is interesting!
Post by: amptramp on April 28, 2016, 03:33:51 PM
Interesting that the contact page on their site does not have any bricks-and-mortar address, just a form for asking questions.  We have no idea where this new Germanium Valley is located - maybe somewhere in China because germanium was originally found in chimney scrapings from coal furnaces and China still uses a lot of coal.  (Germany does not use much coal anymore but the name germanium comes from the fact that it was found in chimney scrapings in Germany.)  Still, a new factory with the possibility of good process control is a good idea.  But I suspect the company has bought up an old silicon foundry that had been abandoned by one of the producers from decades ago because it was not suited to the rapidly-tightening specs on commercial semiconductors in the 1980's.
Title: Re: Well THIS is interesting!
Post by: TejfolvonDanone on April 29, 2016, 06:32:50 AM
Quote from: Mark Hammer on April 27, 2016, 03:14:25 PM
Check the forum post that I linked to.  I honestly couldn't find anything on the corporate web-page, but apparently they are producing several devices with an AD or AS prefix.

I am naively assuming that, because of where he posted this news, those devices have some utility for us.
There's a link in the forum post to a retail called Electrol. They have a lot of germanium transistors and not just AD and AS types. They don't really look like NEW.
Title: Re: Well THIS is interesting!
Post by: duck_arse on April 29, 2016, 11:52:36 AM
Quote from: amptramp on April 28, 2016, 03:33:51 PM
.... germanium was originally found in chimney scrapings from coal furnaces ....

what were they actually looking for in the chimney scrapes?
Title: Re: Well THIS is interesting!
Post by: vigilante397 on April 29, 2016, 12:11:29 PM
Quote from: duck_arse on April 29, 2016, 11:52:36 AM
what were they actually looking for in the chimney scrapes?

duck_arse, asking the questions that need to be asked 8) I always wonder about things like that when reading odd studies and such.
Title: Re: Well THIS is interesting!
Post by: armdnrdy on April 29, 2016, 12:55:21 PM
Quote from: duck_arse on April 29, 2016, 11:52:36 AM
what were they actually looking for in the chimney scrapes?

Maybe searching for a "cure all"

Leaches just weren't doing the trick anymore!  ;)
Title: Re: Well THIS is interesting!
Post by: thermionix on April 29, 2016, 06:41:45 PM
Quote from: duck_arse on April 29, 2016, 11:52:36 AM
what were they actually looking for in the chimney scrapes?

Santa DNA.  Duh.
Title: Re: Well THIS is interesting!
Post by: Gentle Jack Jones on April 29, 2016, 07:02:14 PM
That's some key pedal-geek %^&*tail party trivia right there!

Quote from: amptramp on April 28, 2016, 03:33:51 PM
Interesting that the contact page on their site does not have any bricks-and-mortar address, just a form for asking questions.  We have no idea where this new Germanium Valley is located - maybe somewhere in China because germanium was originally found in chimney scrapings from coal furnaces and China still uses a lot of coal. (Germany does not use much coal anymore but the name germanium comes from the fact that it was found in chimney scrapings in Germany.) Still, a new factory with the possibility of good process control is a good idea.  But I suspect the company has bought up an old silicon foundry that had been abandoned by one of the producers from decades ago because it was not suited to the rapidly-tightening specs on commercial semiconductors in the 1980's.
Title: Re: Well THIS is interesting!
Post by: Gentle Jack Jones on April 29, 2016, 07:05:05 PM
That's pretty funny, too. Let's see: %^&*amamie   %^&*atoo my big John Han%^&*

Yep.  :icon_lol:

Quote from: Gentle Jack Jones on April 29, 2016, 07:02:14 PM
That's some key pedal-geek %^&*tail party trivia right there!

Quote from: amptramp on April 28, 2016, 03:33:51 PM
Interesting that the contact page on their site does not have any bricks-and-mortar address, just a form for asking questions.  We have no idea where this new Germanium Valley is located - maybe somewhere in China because germanium was originally found in chimney scrapings from coal furnaces and China still uses a lot of coal. (Germany does not use much coal anymore but the name germanium comes from the fact that it was found in chimney scrapings in Germany.) Still, a new factory with the possibility of good process control is a good idea.  But I suspect the company has bought up an old silicon foundry that had been abandoned by one of the producers from decades ago because it was not suited to the rapidly-tightening specs on commercial semiconductors in the 1980's.