Let's see your tubes!

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highfilter

Re: Let's see your tubes!
« Reply #200 on: 17 Aug 2012, 04:50 pm »
Friend brought over his Beyerdynamic T1 phones and his Woo Audio WA2 amp. Had lots of fun.

The WA2 is built like a tank and I wouldn't mind having a balanced version to use as a pre-amp when the mood swings right. :)









kingdeezie

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Re: Let's see your tubes!
« Reply #201 on: 17 Aug 2012, 10:39 pm »
Hey Steve,

I like the way they do it up in Canada - nice nudie shot (she has really nice symmetry). :thumb:

I guess this is the best photo I managed last night and my son stitched it together out of two (the long exposure for tube glow is way too much for the meter - took a quicker shot just for the meter to overlay the overexposed one).



I put the bars back on tonight. I'm gonna work on getting a really good shot. A smart person would write down the counts (total exposure & flashlight sweep time) - I guess I thought I'd remember.  :lol:

Hmmm, what do I need to do to get the photo here to look like the one on my PC? What I see in this post looks like crap by comparison.

I love this amplifier.

Awesome picture.

Might be the only amplifier I would consider giving up my Manley Neo Classic 250s for.

kgcdc

Re: Let's see your tubes!
« Reply #202 on: 17 Aug 2012, 11:21 pm »
Not the best picture, but here's my GM70 SET from Sean Casper; we call her "Natasha". About 12-13WPC. Those are copper lined GM70s.




FullRangeMan

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Re: Let's see your tubes!
« Reply #203 on: 17 Aug 2012, 11:53 pm »
Not the best picture, but here's my GM70 SET from Sean Casper; we call her "Natasha". About 12-13WPC. Those are copper lined GM70s.



Hello Kgcdc,
Nice amp, congratulations.
Would you inform something about the sound quality of this amp??
The output transformer seems a EDCOR, what is the model??
Do you had a link to this tube amp builder??
Thanks

kgcdc

Re: Let's see your tubes!
« Reply #204 on: 18 Aug 2012, 12:06 am »
Hello Kgcdc,
Nice amp, congratulations.
Would you inform something about the sound quality of this amp??
The output transformer seems a EDCOR, what is the model??
Do you had a link to this tube amp builder??
Thanks

* Thanks

1. I've only listened to it for about 3 days now, not really very critically yet. It's still burning in and I'm listening to it via new AudioKinesis Prismas, which also aren't broken in. Lastly, I don't have my turntables set up yet, so for now it's just an old Jolida CD player via my (really excellent) Don Allen linestage.

With all those provisos in place, I can't say enough good things about this amp!

It puts out about 13WPC, which is more than enough to drive my 93db Prismas to *thunderous* dynamics. I'm listening right now to Lucinda Williams live album and it's really *just right*. The mids are gorgeous and lush, like a SET should be. Bass is remarkably tight and precise for a SET. Highs are a smidge rolled off right now, but that's the Prismas (they have configurable rear-firing tweeters to control HF energy and I've got them at the least bright setting presently).

Saxophone Colossus through this amp and Duke's Prismas is *unbelievably* perfect. The Prismas are very very revealing and I hear a lot of the tonal quality of this GM70 amp comparing it to the Audiosector Patek that I've also been listening to a lot this week (it's also quite good).

2. All the iron is Edcor. I don't know the model numbers. The tubes are all unusual:

GM70 copper plated drivers
Siemens D3a driver tubes
6BW3 rectifiers (some Phillips I got cheaply on Ebay; I've got a bunch of different 6BW3s I'll eventually roll in)

3. Sean Casper doesn't have a web site for his amps; I'll ask him if he wants to drop by here and give some contact details for himself.

I'm supposed to go to Outer Banks tomorrow for family vacation, but I want to stay here and listen to music! :>

Cheers,
Kendall

FullRangeMan

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Re: Let's see your tubes!
« Reply #205 on: 18 Aug 2012, 01:04 am »
Thanks Kendall for your detailed report, I appreciated it.
Good to know one more builder is mading GM70 SETs, I surprised the output transformer is EDCOR, as someone at the factory told me EDCOR do not made trafos for the GM70.
I unknow the D3A sound quality, I will look info about it.
With only 13W these GM70 tubes will last forever...
Have a nice vacation :thumb:
Regards, Gustavo

P.S.> Just realize the input stage had only 1 tube, very interesting circuit to low power applications.

Whitese

Re: Let's see your tubes!
« Reply #206 on: 23 Aug 2012, 06:22 pm »
All my tubes don't glow that brightly..







adrianc

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Re: Let's see your tubes!
« Reply #207 on: 14 Sep 2012, 11:59 pm »







adrianc

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Re: Let's see your tubes!
« Reply #208 on: 16 Sep 2012, 04:53 pm »

Whitese

Re: Let's see your tubes!
« Reply #209 on: 18 Sep 2012, 04:38 pm »







adrianc

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Re: Let's see your tubes!
« Reply #210 on: 18 Sep 2012, 08:05 pm »



adrianc

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Re: Let's see your tubes!
« Reply #211 on: 18 Sep 2012, 08:07 pm »



adrianc

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Re: Let's see your tubes!
« Reply #212 on: 18 Sep 2012, 08:09 pm »



adrianc

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Re: Let's see your tubes!
« Reply #213 on: 18 Sep 2012, 08:11 pm »



adrianc

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Re: Let's see your tubes!
« Reply #214 on: 18 Sep 2012, 08:13 pm »



Ericus Rex

Re: Let's see your tubes!
« Reply #215 on: 18 Sep 2012, 08:15 pm »
I feel this has turned into a 'mine's longer than yours' thread....

adrianc

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Re: Let's see your tubes!
« Reply #216 on: 18 Sep 2012, 08:43 pm »
No,Ericus,this is what the title (Let's see your tubes) is.

gld

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Re: Let's see your tubes!
« Reply #217 on: 18 Sep 2012, 08:45 pm »
Hello I finished up this pair of amps a few months ago
These things were beasts!!!








Gary

adrianc

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Re: Let's see your tubes!
« Reply #218 on: 18 Sep 2012, 08:49 pm »
Gary, very nice pair of amps :thumb:

gld

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Re: Let's see your tubes!
« Reply #219 on: 18 Sep 2012, 08:50 pm »
I made some nice use of Russian Mig tubes in this VGP
Gary