Today I made my final decisions about which piece of wood would go in each position and orientation. This amp chassis is going to be a work of art!
Continue reading6L6 SE-UL Chassis Wood
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Author Archives: Matt
6L6 SE-UL Design Progress
This morning the power transformer for the 6L6 SE-UL arrived from Edcor. And even more importantly, I’ve got the spalted alder converted to dimensional boards. Now I just need to select what goes where and I can begin milling the chassis.
Continue readingIt Happened Again!
I just got a notification from Edcor. The power transformer I ordered for the 6L6/KT88 SE-UL Amplifier on the 2nd of May (just 9 days ago) shipped today! I thought I was going to have a lot more time to get the spalted alder chassis into shape.
Continue readingA quick Note on the Purpleheart SET and 6AS7 Tubes
I added a note to the end of the 6AS7 “Purpleheart” SET amplifier page concerning power tube variability and their use in this amp.
Continue readingLaughing At the 6L6 SE-UL Layout
I’ve been making an effort this morning to get my head around the internal layout of the 6L6 SE-UL amplifier. Unfortunately, I keep being stymied by the sheer physical size of many of the components.
Continue reading6L6 SE-UL Chassis Decisions
Even though I’m waiting on a power transformer and some oversized components for the 6L6 SE-UL amp that doesn’t mean that all progress has come to a standstill. The new amp needs a chassis. And a new chassis means it’s lumber selection time.
Continue readingMoving things Around and De-Cluttering
You may have noticed a change to the CascadeTubes home page this morning. Things have moved around a little bit.
Continue readingSwitching Gears is Hard on the Clutch
The gear switching I’ve been doing on this rainy afternoon has been putting the 6AS7 “Purpleheart” SET in the “finished” column of the ledger and getting to work on the upcoming 6L6 SE-UL amp. And I’ve already run into a delay.
Continue reading6AS7 SET “It’s Alive!”
Yesterday, after setting the B+ and installing the power supply dropping resistor, I tried out the 6AS7 SET. To say that I am pleased would be an understatement.
Continue reading6AS7 SET is Completely Wired!
I first announced this SET on September 18th, 2020. It’s only taken me about 19 months to get to this point. To be fair, that 19 months was fairly eventful, including both my retirement and much of the COVID madness. But tomorrow, the slow methodical process of testing can finally begin.
Continue readingOld Dog, New Tricks
Although sometimes it may take a little disturbance to the system, as it turns out, you can teach an old dog new tricks.
Continue readingMore SET Progress
With all the distractions this week, I’m not quite as far along as I would have hoped. But all the top plate wiring is done, the power supply sections are complete, and the 6AS7 power stage is complete.
Continue readingNew Content
I just posted the project page for the 12AU7 “Color” Preamp which I completed a couple of months ago. Why don’t you go check it out.
SET Wiring Coming Into Focus
I really haven’t had as much free time this week as I thought I would. But, in spite of other tasks taking priority, I’ve managed to get the iron for the SET all wired into the top plate.
Continue readingGood Progress in 6AS7 SET Assembly
I managed to make good progress on the assembly of the 6AS7 SET today. In addition to getting all the hardware and iron mounted in the chassis and on the top plate, I’ve actually started wiring.
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