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Old 29th March 2010, 02:47 PM   #11
rknize is offline rknize  United States
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Here is how that would work in terms of depth. This is on a 12x10 chassis top plate, but you get the idea.

Click the image to open in full size.

More here: Tubelab Simple SE with big honkin' Edcors?
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Old 29th March 2010, 03:00 PM   #12
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Dang Russ, that is kind of crowded, the Edcore's are huge!

I'm pretty much convinced they are the direction I want to go so I'll probably have to rethink my case plans.

Thanks for the picture Russ.

Rick
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Old 29th March 2010, 03:16 PM   #13
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You bet. Their size is what spawned my thread. They are overkill for this amp, but I wouldn't change a thing. My SSE puts out amazing bass with big tubes...it's great. I have a TSE to handle the delicate stuff. But that picture is the reason why I built a custom chassis. It was a lot of work. I had thoughts of building another for a matching Simple PP, but thinking about all the milling and drilling dashes that plan immediately. I have found a slightly goofy "chassis" for the Simple PP instead, but that is another thread.
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Old 29th March 2010, 10:34 PM   #14
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I also do not regret spending a few more dollars and getting the large edcors. My SSE is still my favorite amp. I do like the simple PP a lot but I dont know if it is because the SSE was my first tube amp or what but it is probably my favorite. I prefer the KT88s in mine but I enjoy bass
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Old 29th March 2010, 11:59 PM   #15
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Paul, you sort of touched on another area I was wondering about, what power tubes are guys using. Whose KT-88 tube are you using?

Russ, how about you?

Rick
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Old 30th March 2010, 12:13 AM   #16
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I am using a pair of Genalex Gold Lion Kt88s that got for a good deal off the boards here. I have also used EH 6l6gcs which I liked as well. Also for a little while I had a hand me down pair of RCA 6l6gcs but one tube was going bad. Also have tried a pair of JJ EL34 which I did not really care for all that much along with a pair of chinese 6l6gcs that liked to redplate on me any chance they got.

Last edited by nic6paul; 30th March 2010 at 12:17 AM.
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Old 30th March 2010, 12:15 AM   #17
rknize is offline rknize  United States
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Which tubes? Gee it depends when you ask. At one time or another, I've tried:

- Valve Art EL34 (Shuguang)
- SED EL34
- ElectroHarmonix 6CA7
- Philips JAN 6L6GWB
- JJ 6L6GC
- Shuguang 6L6GC
- Tung-Sol 6550 (reissue)
- SED KT88
- ElectroHarmonix KT90

The SED EL34 were the best for detail. The SED KT88 and EH KT90 are my favorites for rocking hard. The 6CA7 and 6L6 are a compromise and those are in there when I just have random tunes in the background or don't feel like fiddling with it. I have a switchable bias resistor that lets me run all these tubes.
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Old 30th March 2010, 12:17 AM   #18
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KT90s are one tube that I would like to try as well. I should put those on my buy list.
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Old 30th March 2010, 01:00 AM   #19
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Whoa, you guys have rolled a bunch of different items, that's pretty cool.

Russ, later when I get a few items rounded up I'd like to quiz you on the bias switching you have on your rig, that sounds very interesting.

Paul, it's funny you mention the Gold Lions, I was eye balling those on the Tube Depot site earlier today over breakfast.

Thanks Gents.

Rick
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Old 30th March 2010, 01:20 AM   #20
rknize is offline rknize  United States
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You can run all these tubes with one set of resistors, but you have to design for the least common denominator (EL34) and so you end up running the bigger tubes at a lower bias than you'd want for them to sound their best.
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