WG6100. Thinking about making some T901's & Amp gear

dezbaz

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WG6100. Thinking about making some T901's & Amp gear

8 pin Amplifone neck connectors . . . scroll down.

If you've worked on WG6100's you know what a T901 is.

The driver transformer for the WG6100 HV board





That Metal cover is NOT connected to anything, so may not even be needed, it is made from steel, but could be made from Tin quite easily




I need to order some other PCBs from the Board Maker, so was going to combine a few

Might be able to do 10 or 20 of each if anyone needs T901's

Other Gear on the same run
  • 8 Pin Neckboard for the Amplifone (Equiv to the existing 10 pin)
  • More 10 Pin Boards - Improving a few errors on prev
  • More MC1's
  • More T1's - May modify them a bit

Let me know

:)
 
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I've already done the layout for the board itself (P329), but never had them made since there was no T901. If these parts get made then I can have a couple blank boards run. Or if you're having other boards run, I could send you the Gerber files Dez. Lemme know.
 
I've already done the layout for the board itself (P329), but never had them made since there was no T901. If these parts get made then I can have a couple blank boards run. Or if you're having other boards run, I could send you the Gerber files Dez. Lemme know.

Cool :)

T901 is like one of them little annoying parts I want to get out of the way.

Why don't you do an interest thread for the 329 HV boards and I will just supply the T901's for them. No need for me to take over your work

(Edit: I was going to do all my small PCBs in 2mm this time rather than 1.6mm anyway)
 
Is T901 different than the transformer on the amplifone boards? Don't have any info in front of me right now. Either way, I am interested in some T901s. Any discount for QTY purchases?
 
6100

When i used to fix these in the 80's and 90's i rarely had to replace them. But, like anything maybe they are actually failing now.?
i have around 10 high voltage units i was going to fix up but have not got around to, but i am sure a few are missing the transformer.
 
Is T901 different than the transformer on the amplifone boards? Don't have any info in front of me right now. Either way, I am interested in some T901s. Any discount for QTY purchases?

The pin layout is different, almost opposite to the Amp
The primary has 200 more turns than the Amp

If anyone needs a qty of them, I can do a better deal I think

:cool:
 
What kills these is when the 555 fails. If it fails with a HI output it puts DC across the primary of the transformer and cooks it. Adding a tiny fuse in the circuit would protect the transformer.
 
Aha!

That makes sense, the primary wire is hair thin, whereas the Amplifone is thicker. Good idea on a fuse.
Any WG HV Repro could easily incorporate a fuse on the primary


What kills these is when the 555 fails. If it fails with a HI output it puts DC across the primary of the transformer and cooks it. Adding a tiny fuse in the circuit would protect the transformer.
 
I have started on some protos at night

I have simply copied the Amplifone ones for now, they will be altered to suit the WG HV Board

The proto board will have:
  • 3 x WG6100 T901's (NEW)
  • 2 x 8 pin Neck Connectors (NEW)
  • 2 x 10 Pin Neck Connectors
  • 2 x Amp MC1's
  • 2 x Amp T1's



Time to get some winding wire

And . . .
From vectorlist
http://www.vectorlist.org/Vectorlist/2011/09/0088.html

Specifically this
The primary wire measured .0065 inch, which according to wikipedia:

http://en.wikipedia.org/wiki/American_wire_gauge

is AWG 34.

The secondary wire measured at .025 inch, which is AWG 22.

So, putting it all together, the specs for T901 are:

Primary coil: 625 turns of AWG 34 wire
Secondary coil: 23 turns of AWG 22 wire
 
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Ha Ha.. thats my post.. Glad this is getting remade!! The one part thats not available for these. I just had an aluminum box fabricated for a HV board... Now who wants to make the tube...
 
Ha Ha.. thats my post.. Glad this is getting remade!! The one part thats not available for these. I just had an aluminum box fabricated for a HV board... Now who wants to make the tube...

Well thank you for the info in your post :)

The tube could be "upgraded" to a 90 degree tube and WG neckboards could be made to suit the different CRT connector

Of course you would need a 90 degree yoke (or rewound)
 
Well thank you for the info in your post :)

The tube could be "upgraded" to a 90 degree tube and WG neckboards could be made to suit the different CRT connector

Of course you would need a 90 degree yoke (or rewound)

Could you explain that about being able to use a 90 degree tube on a 6100?
 
You would need a yoke that will fit a 90 degree tube. The normal yoke wont slide far enough up. Also the tube socked is different. Although I think this is a minor issue as far as I think only 2 of the colors are reversed, and if you can get the little plastic part at the end of the tube, it will actually plug in fine. Another issue might be clearances on the HV box and the cab itself. The 90 degree tubes are a bit deeper.

You might be able to use an amp yoke, but as Jed has mentioned, they are designed to pass more current (less turns), so it will work the outputs a bit harder.


Andrew
 
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