Poll

What BIG tube rules

GM70
5 (45.5%)
845
0 (0%)
211
0 (0%)
GM100
1 (9.1%)
304TL
2 (18.2%)
833A/C
0 (0%)
450TL/TH
0 (0%)
805
0 (0%)
813
2 (18.2%)
SV572-10
1 (9.1%)

Total Members Voted: 11

Voting closed: March 12, 2010, 01:53:59 AM

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Author Topic: What BIG tube rules?  (Read 2006 times)

Bas Horneman

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What BIG tube rules?
« on: March 07, 2010, 01:53:59 AM »
Go...
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rcavictim

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Re: What BIG tube rules?
« Reply #1 on: March 07, 2010, 04:11:20 AM »
Bas,

Don't you think you should have included the 805, 833A/C and perhaps the 304TL and 450TL/TH?
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Bas Horneman

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Re: What BIG tube rules?
« Reply #2 on: March 07, 2010, 11:41:42 AM »
Hi rcavictim,

Yes I should have. Thanks. I've added them.

Kind regards,
Bas
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djnagle

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Re: What BIG tube rules?
« Reply #3 on: March 07, 2010, 03:46:19 PM »
Hey Bas.  Thanks so much for all the work on this forum.  Much needed.  The title says 405TL should be 450TL. Cheers.
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Bas Horneman

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Re: What BIG tube rules?
« Reply #4 on: March 07, 2010, 05:02:27 PM »
Thanks Dennis.
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kheper

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Re: What BIG tube rules?
« Reply #5 on: March 07, 2010, 08:00:25 PM »
There is a great, big tube missing from the list. It is the 813, my favorite.

EDIT: My error I did not see 813 in the vote list...
« Last Edit: March 07, 2010, 10:22:07 PM by kheper »
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kevinkr

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Re: What BIG tube rules?
« Reply #6 on: March 08, 2010, 05:14:05 AM »
Hi Bas,
I thought I would give your boat anchor forum a try since I am occasionally active on the GM70 yahoo group. I'm currently working on a GM70 amplifier which is progressing very slowly..  :) Hence my vote for the GM70.. (I almost went with the 211)

Hope this works out and most of the GM70 crowd can be persuaded to come over here. I'm very active at diyA as you know and have to choose forums carefully to participate on due to time constraints..
« Last Edit: March 08, 2010, 05:16:18 AM by kevinkr »
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Bas Horneman

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Re: What BIG tube rules?
« Reply #7 on: March 08, 2010, 10:39:48 AM »
Hi Kevin,

I had been doubting setting up this forum. Because as you know diyAudio.com is huge and could fulfill the GM70 group function as well.

But because the yahoo group was still alive and well. I decided what the hell there is some kind of demand for it. But the yahoo forum is not easy to use. At least for me. Sometimes when I post something ...I can't even find my own post.

Kind regards,
Bas
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slowmotion

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Re: What BIG tube rules?
« Reply #8 on: March 08, 2010, 04:18:30 PM »
Re BIG tubes/valves  I voted for 813, since I like it so much.
Next amp is going to be with 211s.

 ;)
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Bas Horneman

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Re: What BIG tube rules?
« Reply #9 on: March 08, 2010, 05:09:09 PM »
Before I started with my GM70 plan. I wanted to do the 813. But since NOS was hard to find in Europe. I got the Russian equivalent. GU-13. When one of them broke I decided to go for the GM70. BUT I have to admit I've not even heard a GM70 amp yet.

Kind regards,
Bas
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rock4016

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Re: What BIG tube rules?
« Reply #10 on: March 09, 2010, 04:24:24 PM »
I'd like to see the SV572-10 added to the list please.
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rcavictim

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Re: What BIG tube rules?
« Reply #11 on: March 10, 2010, 02:51:37 AM »
Quote from: rock4016 on March 09, 2010, 04:24:24 PM
I'd like to see the SV572-10 added to the list please.

This is a list of output tubes, not drivers.   ;)

Are we gonna have a low Pd cutoff point for the output bottles we list?  Nothing under 50 watts CCS?  75W?  100W?

How about they must have been listed as a transmitting tube as opposed to a receiving tube.  That keeps boredinary valves like the KT88 out but lets an 809 transmitting triode at 25 watts PD in.  I built an amp using 1619 (triode wired)through I.T. to 809 SET with DC heat on all DH cathodes, parafeed and ultrapath output using a vintage Hammond 15 watt P-P xfmer and it makes that to die for SET magic. It only outputs 3.1 watts/channel but that is enough for my near 100 dB DIY speakers.  There are so many xfmers and chokes in this amp I'd say it qualifies as a boatanchor.  :)  Both these tubes are listed officially as transmitting tubes.

With transmitting tube only rule we can allow many interesting tubes such as 572B and 811A,  etc.

Maybe we don't need any such rules at all.  Peer pressure will guide the size of the glassware here if left on it's own I'm sure.  8)

edit to fix typo.
« Last Edit: March 10, 2010, 06:04:46 PM by rcavictim »
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rcavictim

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Re: What BIG tube rules?
« Reply #12 on: March 10, 2010, 03:04:11 AM »
One of these days I want to build an 813 amp to try.  Also have a 450TH P-P subwoofer monoblock in the 'gathering parts' box.  For the past year I have been listening to carpetboarded (components clip leaded about on the carpet, not even on a board!) SE 4-125A in triode.  Very very nice sound!
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Bas Horneman

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Re: What BIG tube rules?
« Reply #13 on: March 10, 2010, 01:55:07 PM »
Quote
I'd like to see the SV572-10 added to the list please.
done.
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rock4016

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Re: What BIG tube rules?
« Reply #14 on: March 10, 2010, 04:58:10 PM »
Quote from: rcavictim on March 10, 2010, 02:51:37 AM
Quote from: rock4016 on March 09, 2010, 04:24:24 PM
I'd like to see the SV572-10 added to the list please.


This is a list of output tubes, not drivers.   ;)


I'd use the -30 or -160 as a driver.  I've also seen the 845 used as a driver.
http://www.cognitivevent.com/av_monstro.html
 8)
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