Help Support Bigcoupe.com

Blower Transistor

Post in this forum for topics relating to the interior.

Moderators: ron, bfons, GRNSHRK

Post Reply
jberg

Blower Transistor

Post by jberg » Wed Sep 07, 2011 2:07 am

So it appears that normgrills.net is down. All the links I have used in the past no longer work. I need to replace my heater blower transistor, normgrills had the correct number, but I cant access it. Does anyone have this number so I can go to my local electronics store and pick up this transistor? Thanks

Jorden

User avatar
Brucey
6 Series Guru
Posts: 10021
Joined: Fri Apr 09, 2004 7:17 am
Location: Cambridge, UK

Post by Brucey » Wed Sep 07, 2011 4:03 am

normgrills is not just down but out in a new direction it seems....

I found this post but I don't know if it is accurate or not

viewtopic.php?t=13292&highlight=blower+transistor

hth

cheers
~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

User avatar
Brucey
6 Series Guru
Posts: 10021
Joined: Fri Apr 09, 2004 7:17 am
Location: Cambridge, UK

Post by Brucey » Wed Sep 07, 2011 4:11 am

~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

User avatar
nick88highline
Bigcoupe supporter
Posts: 312
Joined: Fri Feb 06, 2009 11:31 am
Location: Suffolk, UK

Post by nick88highline » Wed Sep 07, 2011 8:12 am

Here are two pictures of what a new transistor board looks like from BMW:

<img src="http://farm7.static.flickr.com/6193/605 ... 1174_z.jpg" width="640" height="480" alt="IMG_6747">

<img src="http://farm7.static.flickr.com/6067/605 ... c354_z.jpg" width="640" height="426" alt="IMG_6744">

The transistor type is a 2N3771.
BMW 635CSiA (1988)
BMW i3 (2016)
Jeep Grand Cherokee V8 (2000)
Morris Minor 1000 (1968)

Michael , Denmark
Posts: 73
Joined: Thu Mar 31, 2011 8:22 pm
Location: denmark

Transistor

Post by Michael , Denmark » Wed Sep 07, 2011 4:14 pm

3 US for the transistor.

http://dk.rs-online.com/web/294429.html ... 3771_Broad

Michael from Denmark

User avatar
Chris Wright
Senior Member
Posts: 5718
Joined: Tue Jul 12, 2005 8:12 am
Location: Columbus, IN (INDY 500 area)

Post by Chris Wright » Thu Sep 08, 2011 5:04 am

Yes, the original transistors are 2N3055 (10A). The replacements are a 2N3771 (15A). Here is the Norm Grills page captured by the Wayback Machine:


http://web.archive.org/web/200803071213 ... sistor.htm
__________________________
Chris Wright
'87 635Csi
3 MGA's
MG 1100

User avatar
Brucey
6 Series Guru
Posts: 10021
Joined: Fri Apr 09, 2004 7:17 am
Location: Cambridge, UK

Post by Brucey » Thu Sep 08, 2011 5:38 pm

-good work digging out the archive version of the page there Chris; but.... why don't I see the images when I try and load that page? Am I doing something stupid (again...)?

cheers
~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

User avatar
Brucey
6 Series Guru
Posts: 10021
Joined: Fri Apr 09, 2004 7:17 am
Location: Cambridge, UK

Post by Brucey » Thu Sep 08, 2011 5:44 pm

BTW all the original picture thumbnails still appear on a Google search of the Normgrills page (normgrills blower transistor), but obviously don't click through properly....

http://www.google.com/images?q=normgril ... art=0&sa=N

cheers
~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

User avatar
Chris Wright
Senior Member
Posts: 5718
Joined: Tue Jul 12, 2005 8:12 am
Location: Columbus, IN (INDY 500 area)

Post by Chris Wright » Fri Sep 09, 2011 6:21 am

Hmm .... I just tried it again and the pics came up.

Maybe you have to make an original search on the Wayback Machine:

http://www.archive.org/web/web.php with the original link:

http://normgrills.net/bcg/Blower_Transistor.htm
__________________________
Chris Wright
'87 635Csi
3 MGA's
MG 1100

User avatar
Brucey
6 Series Guru
Posts: 10021
Joined: Fri Apr 09, 2004 7:17 am
Location: Cambridge, UK

Post by Brucey » Fri Sep 09, 2011 12:45 pm

good idea but still no-go for some reason. how odd......

is it just me then?

cheers
~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

User avatar
winfred
Bigcoupe supporter
Posts: 1057
Joined: Sat Aug 25, 2007 3:37 am
Location: louisiana

Post by winfred » Sat Sep 10, 2011 3:10 am

i mounted the new speed control to the original board to ease mounting and keep it in the airflow on the last blower job i did

Image
3/81 633 m30b35 & getrag 260/6, motronic 1.3 -sold

86 635 with nearly all goodies from rotted away 85 m635 including the m88/3, tuning in progress on motronic 3.3.1

User avatar
Chris Wright
Senior Member
Posts: 5718
Joined: Tue Jul 12, 2005 8:12 am
Location: Columbus, IN (INDY 500 area)

Post by Chris Wright » Sat Sep 10, 2011 3:36 am

Brucey wrote:good idea but still no-go for some reason. how odd......

is it just me then?

cheers
You know, I am still on dial-up and have a large cache set on my browser to help download speed. I think I still get the photo's because they are still in the cache !?! (IIRC, I visited this link just a week or so ago).

I "downloaded" the page while the photos were up, now all I have to do if figure the easiest way to turn it into a PDF (I think the Mac will "Print" the page direct to a PDF file).
__________________________
Chris Wright
'87 635Csi
3 MGA's
MG 1100

User avatar
Kelowna635
Bigcoupe supporter
Posts: 205
Joined: Tue Jun 09, 2009 4:53 pm
Location: Kelowna, BC Canada

Post by Kelowna635 » Mon Sep 12, 2011 6:31 pm

Wow, was that ever easy to change....
I now have a fan that blows air at different speeds.
Thanks for the info about the transistor, got one for $3.98.
A bit of a PIA to get it off the board, but a drill, a soldering iron and a rivet gun and it works.... Gota love this forum, saves me so much $$
DIY all the way.... :D
Tom Masters

TGM Drafting & Design
1988 635csi - Bronzeit - Natur
1986 635csi - Black - Black - RIP
1979 528i - RIP
1981 320i - Sold

User avatar
Chris Wright
Senior Member
Posts: 5718
Joined: Tue Jul 12, 2005 8:12 am
Location: Columbus, IN (INDY 500 area)

Post by Chris Wright » Tue Sep 13, 2011 5:06 am

Anyone know what that black square thing is on the upper left of the back of the transistor mounting plate in the photo?

Image
__________________________
Chris Wright
'87 635Csi
3 MGA's
MG 1100

User avatar
Brucey
6 Series Guru
Posts: 10021
Joined: Fri Apr 09, 2004 7:17 am
Location: Cambridge, UK

Post by Brucey » Tue Sep 13, 2011 11:49 am

Chris,
forgive my stupid question but which part is this? Is it from the control end, identified as 'solid state' on the ETM diagram? Or is it a part that isn't shown at all on the ETM?

cheers
~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

User avatar
Chris Wright
Senior Member
Posts: 5718
Joined: Tue Jul 12, 2005 8:12 am
Location: Columbus, IN (INDY 500 area)

Post by Chris Wright » Tue Sep 13, 2011 4:39 pm

.
Good News .... Normgrills seems to be up and running again, that was a bit of a scare.
Brucey wrote:Chris,
forgive my stupid question but which part is this? Is it from the control end, identified as 'solid state' on the ETM diagram? Or is it a part that isn't shown at all on the ETM?

cheers
It is the backside of the new replacement Heater Blower Transistor plates being supplied, I nicked the photo from nick88highline's post above which has photos of both sides. The ETM just calls it "Heater, Final Stage" but only shows the transistor.

IIRC, a resistor was added across the Base and Emitter pins to run the heater blower at a very low speed like the A/C blower was already set up to do. The originals didn't have it?

I was just wondering what that black thing was that appears to be inline with the base pin? :-k
__________________________
Chris Wright
'87 635Csi
3 MGA's
MG 1100

jt
Posts: 3
Joined: Sun Mar 10, 2013 8:00 pm

Re: Blower Transistor

Post by jt » Tue Mar 12, 2019 7:24 pm

I know this is a necro post, but I figured out what the little thing under the black clip is - it's a thermal breaker. It's made by a company named Uchiya and breaks at 110 degree Celsius. In case anyone wants to know...

dlvad
Site Admin
Posts: 412
Joined: Sat Apr 03, 2004 2:57 pm
Location: Healdsburg, NorCal & Baja Sur, MX

Re: Blower Transistor

Post by dlvad » Tue Mar 12, 2019 10:17 pm

Hey JT
What’s up in FL, This is a Tedious bit of Soldering. You likely own one these too..
Attachments
729C3717-1E30-455E-B586-DADC23ADA6CB.jpeg
729C3717-1E30-455E-B586-DADC23ADA6CB.jpeg (13.67 KiB) Viewed 835 times
DV
////// Motorsports & Vintage Coupes
ALPINA Youngtimers of Course...
BMWCCCA

Post Reply

Who is online

Users browsing this forum: No registered users and 3 guests