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Old 8th December 2012, 08:27 PM   #11
scott17 is offline scott17  United States
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Thanks for the information.

After I typed the original post, I found this thread:
Super 6BG6 vs. 6550

The 6GB6s that I have are the large plate version, Sylvania.

SY is running the screens at 500V. He says his is PP though, I'm guessing triode connected?, I may be wrong on that.

I'll end up trying triode and pentode connected when I breadboard the circuit.

Scott
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Old 8th December 2012, 08:39 PM   #12
scott17 is offline scott17  United States
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Here is a photo of mine and a link to the photo I was comparing it to.

The plate in mine looks identical to the large plate version, although the getters on mine on on the sides instead of the top.

ImageShack® - Online Photo and Video Hosting
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Old 10th December 2012, 10:25 PM   #13
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Hi scott17
I'm curious about that base board.
Do you have a manufacturer/supplier name and part number?
Thanks
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Old 10th December 2012, 11:52 PM   #14
scott17 is offline scott17  United States
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Quote:
Originally Posted by Bibliophile View Post
Hi scott17
I'm curious about that base board.
Do you have a manufacturer/supplier name and part number?
Thanks
Pete Millett, a member here, sells those.
8 Pin Octal Breadboard Prototype Tube Socket for DIY Experimenting | eBay
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Old 10th December 2012, 11:55 PM   #15
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Great, thanks a lot.
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Old 24th December 2012, 08:21 PM   #16
scott17 is offline scott17  United States
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Can someone please help me to verify if these are indeed the large plate variety? I'm beginning to think not.

Although they have the side getters, they have gray plates, and the plates look like the super version. The imageshack link shows the large plate version.

Post #12 in this thread has the photo of mine.

Thanks,

Scott

Quote:
Originally Posted by scott17 View Post
Here is a photo of mine and a link to the photo I was comparing it to.

The plate in mine looks identical to the large plate version, although the getters on mine on on the sides instead of the top.

ImageShack® - Online Photo and Video Hosting
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Old 25th December 2012, 10:00 AM   #17
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Hi,

Your imageshack photo... the tube on the left is the hefty 6BG6GA. The one on the right I wouldn't trust because I have had them red plate.

I have run the 6BG6GA in both my Dynaco Stereo 70 and my Quicksilver 8417 mono block amps as well as an amp that I built from scratch. I have never run triode with them so I cannot comment on how they sound in that mode. I have run them at almost 500 plate and 55mA without problems.

There is a guy in Missouri that sells the "Good" 6BG6GA's and you should read what he has on his website.

http://www.vacuumtubes.com/6BG6.html

Last edited by Original Burnedfingers; 25th December 2012 at 10:03 AM.
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Old 25th December 2012, 10:18 AM   #18
scott17 is offline scott17  United States
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I can tell which one the large plate device is in imageshack photo, because it's the one with the large plates.

My question is: Does the one I have shown in post 12 have the large plates? They are grey, and they appear to match, but my tube has the side getters.

I've seen the site selling the large plate variety, thanks.
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Old 25th December 2012, 11:05 AM   #19
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Your post #8 shows the grey plate on the left and the black on the right.

The tube on the left the gray plate one is what you need. At $12 ea from vacuumtubes it only makes sense to buy new.
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Old 25th December 2012, 11:24 AM   #20
scott17 is offline scott17  United States
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Yes, we've been over that. I understand, but I did not mention post #8.

If you re-read my question very carefully you may notice that I mention the photo of the one I have is in post #12.

Notice that it says post #12, not post #8. It doesn't say post #8.

Maybe another way to ask the question is:
Does anyone know if the large grey plate 6BG6GA were ever made with side getters?
Notice the the upper and lower mica wafers in the the one I have are like the large plate version.

Thanks.


Quote:
Originally Posted by Original Burnedfingers View Post
Your post #8 shows the grey plate on the left and the black on the right.

The tube on the left the gray plate one is what you need. At $12 ea from vacuumtubes it only makes sense to buy new.

Last edited by scott17; 25th December 2012 at 11:34 AM. Reason: add comment about mica wafers
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