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Tube pinout question
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km987654



Joined: 25 Jul 2007
Posts: 2757
Location: Australia

TV/Projector: Barco BG809s


PostLink    Posted: Thu Jun 30, 2011 10:31 am    Post subject: Reply with quote


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km987654 wrote:
TbX wrote:
to use bg1200 tubes in bg808s just connect pin 8 to pin 3 and it vill work

and on p16 to p19 yes you can


Discovered that but thanks for confirmation.


OK I thought I had this figured but now not so sure. Pin 8 according to BG808s manual is already connected as G1 and 09MFX3 or 09MEX2 has pin 8 as G1. Pin 3 on tube pin out is also listed as G1 but there is no pin 3 on socket schematic.
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Ile



Joined: 09 Mar 2006
Posts: 1491
Location: Jyväskylä, Finland


PostLink    Posted: Thu Jun 30, 2011 12:22 pm    Post subject: Reply with quote

km987654 wrote:
So is pin 3 sony tube = pin 4 sony socket.
Yes.

km987654 wrote:
OK I thought I had this figured but now not so sure. Pin 8 according to BG808s manual is already connected as G1 and 09MFX3 or 09MEX2 has pin 8 as G1. Pin 3 on tube pin out is also listed as G1 but there is no pin 3 on socket schematic.
Tubes pin 3 is pin 4 at barco schematics, because it's made by universal socket numbering not sonys. Very Happy

It's always good to check that those extra G1 pins (9/13 socket) aren't connected to ground at neck card when modifying pinouts, that will short G1 to ground via tube. Shouldn't be problem with BG808s neck cards with 09MEX tubes, but sometimes it could be.
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km987654



Joined: 25 Jul 2007
Posts: 2757
Location: Australia

TV/Projector: Barco BG809s


PostLink    Posted: Thu Jun 30, 2011 10:27 pm    Post subject: Reply with quote

Ile wrote:
km987654 wrote:
So is pin 3 sony tube = pin 4 sony socket.
Yes.

km987654 wrote:
OK I thought I had this figured but now not so sure. Pin 8 according to BG808s manual is already connected as G1 and 09MFX3 or 09MEX2 has pin 8 as G1. Pin 3 on tube pin out is also listed as G1 but there is no pin 3 on socket schematic.
Tubes pin 3 is pin 4 at barco schematics, because it's made by universal socket numbering not sonys. Very Happy

It's always good to check that those extra G1 pins (9/13 socket) aren't connected to ground at neck card when modifying pinouts, that will short G1 to ground via tube. Shouldn't be problem with BG808s neck cards with 09MEX tubes, but sometimes it could be.


I will check those two pins as I am getting full brightness only which would suggest no G1.
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Decibel



Joined: 31 May 2007
Posts: 901
Location: Roma - Italia


PostLink    Posted: Fri Jul 01, 2011 8:33 am    Post subject: Reply with quote

This is a Sony tube







Rvonse in this post wrote:

Pinout of all Sony (either 8 or 9") tubes are:
1=G3
2=blank
4=G1
5=G2
6=filiment
7=filiment
8=blank
9=G1
10=cathode
11=blank
12=blank
13=G1

He do not has described the pin 3 and has used same numeration order like Panasonic.

Below is a Panasonic tube



I will do photos of this.

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Domenico (Barco fan!)
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Decibel



Joined: 31 May 2007
Posts: 901
Location: Roma - Italia


PostLink    Posted: Fri Jul 01, 2011 12:43 pm    Post subject: Reply with quote

Below a picture of a green Panasonic P16LNP

Inside tube there are 14 "points" but numbers 3, 4, 13 and 14 have no pin.
In these "points" there are glass bubbles only.


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Domenico (Barco fan!)
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macgyver655



Joined: 22 Aug 2007
Posts: 8508



PostLink    Posted: Fri Jul 01, 2011 1:53 pm    Post subject: Reply with quote

I dont understand what your question is. Pins 3 and 14 are under the plastic cap on the back of the tube. You can't see them except in your pic showing the inside back of the tube. They are listed as blank sometimes cause of where their location would be. Thats why the order goes 1, 2, 4, 5 and so on and usually stops at 13 even tho there is a spot for a 14 but nothing is there. Just a bubble in the glass.

What is your specific question?
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Decibel



Joined: 31 May 2007
Posts: 901
Location: Roma - Italia


PostLink    Posted: Fri Jul 01, 2011 2:08 pm    Post subject: Reply with quote

macgyver655 wrote:
What is your specific question?


Now I haven't questions Very Happy

I show pictures for understand ... then share knowledge Thumbs Up

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Domenico (Barco fan!)
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macgyver655



Joined: 22 Aug 2007
Posts: 8508



PostLink    Posted: Fri Jul 01, 2011 2:15 pm    Post subject: Reply with quote

Decibel wrote:
macgyver655 wrote:
What is your specific question?


Now I haven't questions Very Happy

I show pictures for understand ... then share knowledge Thumbs Up



Oh, ok. Then I guess I helped your helping..... Laughing
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Decibel



Joined: 31 May 2007
Posts: 901
Location: Roma - Italia


PostLink    Posted: Fri Jul 01, 2011 2:29 pm    Post subject: Reply with quote

macgyver655 wrote:
Oh, ok. Then I guess I helped your helping..... Laughing


... surely! Thumbs Up

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Domenico (Barco fan!)
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km987654



Joined: 25 Jul 2007
Posts: 2757
Location: Australia

TV/Projector: Barco BG809s


PostLink    Posted: Sat Jul 02, 2011 3:58 am    Post subject: Reply with quote

macgyver655 wrote:
I dont understand what your question is. Pins 3 and 14 are under the plastic cap on the back of the tube. You can't see them except in your pic showing the inside back of the tube. They are listed as blank sometimes cause of where their location would be. Thats why the order goes 1, 2, 4, 5 and so on and usually stops at 13 even tho there is a spot for a 14 but nothing is there. Just a bubble in the glass.

What is your specific question?


Because Pin 3 on Sony tubes actually has a function G1.
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km987654



Joined: 25 Jul 2007
Posts: 2757
Location: Australia

TV/Projector: Barco BG809s


PostLink    Posted: Sat Jul 02, 2011 4:03 am    Post subject: Reply with quote

Rvonse in this post wrote:

Pinout of all Sony (either 8 or 9") tubes are:
1=G3
2=blank
4=G1
5=G2
6=filiment
7=filiment
8=blank
9=G1
10=cathode
11=blank
12=blank
13=G1


This Pin out does not match either Sony tube Pin out for 09mex2 09mfx3 and it does not match Pin out for bg808s neck board.
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Decibel



Joined: 31 May 2007
Posts: 901
Location: Roma - Italia


PostLink    Posted: Sat Jul 02, 2011 8:03 am    Post subject: Reply with quote

km987654 wrote:
This Pin out does not match either Sony tube Pin out for 09mex2 09mfx3 and it does not match Pin out for bg808s neck board.


In fact ... the sheet that show pinout crt 9" is wrong!

Pin 3 not exist.

You must consider pin 4 (G1) like Rvonse list

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Domenico (Barco fan!)
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km987654



Joined: 25 Jul 2007
Posts: 2757
Location: Australia

TV/Projector: Barco BG809s


PostLink    Posted: Sat Jul 02, 2011 8:17 am    Post subject: Reply with quote

Decibel wrote:
km987654 wrote:
This Pin out does not match either Sony tube Pin out for 09mex2 09mfx3 and it does not match Pin out for bg808s neck board.


In fact ... the sheet that show pinout crt 9" is wrong!

Pin 3 not exist.

You must consider pin 4 (G1) like Rvonse list


According to BG808s neckboard socket schematic Pin 4 is G2 same as 09MEX2 G1 is on Pin 8.
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km987654



Joined: 25 Jul 2007
Posts: 2757
Location: Australia

TV/Projector: Barco BG809s


PostLink    Posted: Sat Jul 02, 2011 8:35 am    Post subject: Reply with quote

Pinouts


09MEX2 BG808s

1 arc 1 ground
2 nc 2 ground
3 g1 3 nc
4 g2 4 g2
5 heater 5 heater
6 heater 6 heater
7 nc 7 ground
8 g1 8 g1
9 cathode 9 cathode
10 nc 10 nc
11 nc 11 nc
12 g1 12 nc



The nc (not connected) on the BG808s socket I have assumed as they are not mentioned in the schematic. One of these at least is wrong as the tube goes into full brightness.
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Decibel



Joined: 31 May 2007
Posts: 901
Location: Roma - Italia


PostLink    Posted: Sat Jul 02, 2011 9:05 am    Post subject: Reply with quote






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Domenico (Barco fan!)


Last edited by Decibel on Sat Jul 02, 2011 11:38 am; edited 2 times in total
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km987654



Joined: 25 Jul 2007
Posts: 2757
Location: Australia

TV/Projector: Barco BG809s


PostLink    Posted: Sat Jul 02, 2011 9:34 am    Post subject: Reply with quote

Where did that tube pin out come from?
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Decibel



Joined: 31 May 2007
Posts: 901
Location: Roma - Italia


PostLink    Posted: Sat Jul 02, 2011 9:46 am    Post subject: Reply with quote

km987654 wrote:
Where did that tube pin out come from?


Perhaps don't understand your question, sorry.

However my latest pictures show BG808s tube (Sony 07MFP2).

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Domenico (Barco fan!)
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Decibel



Joined: 31 May 2007
Posts: 901
Location: Roma - Italia


PostLink    Posted: Sat Jul 02, 2011 9:52 am    Post subject: Reply with quote

I have mistaken tube's name in pictures, I will modify!

edit: now is ok

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Domenico (Barco fan!)
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Decibel



Joined: 31 May 2007
Posts: 901
Location: Roma - Italia


PostLink    Posted: Sat Jul 02, 2011 10:44 am    Post subject: Reply with quote

km987654 wrote:
So 07MFP2 has same pin out as 09MEX2?

I don't know, but Rvonse in his post said -either 8" and 9"-.
So I assuming that all Sony tubes have same pinout.

Have you a 09MEX2 to compare with 07MFP2?

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km987654



Joined: 25 Jul 2007
Posts: 2757
Location: Australia

TV/Projector: Barco BG809s


PostLink    Posted: Sat Jul 02, 2011 11:12 am    Post subject: Reply with quote

I don't have 07MFP2.

When I put bg808s neck card on 09MEX2 or 09MFX3 tube the tube goes full brightness. If I look at the neck card it would seem that I should connect Pin 8 to pin 4 or pin 9 and if this right then 8 and 9 tubes are not exactly the same.
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