I managed to steal a little time over Easter to do a some work in the shop. The chassis for the new 6V6 “Curly Maple” Amplifier is coming along nicely.
Continue readingGetting Closer
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Slow Progress
After some delay I have managed to finish all the metal work for the Marblewood Upgrade Amplifier. Hereafter referred to as the 6V6 Curly Maple Amplifier.
Continue readingMore Chaos on the Work Desk
Having performed the investigations I wanted on the gain stage on which I was working, I then moved on to another part of the project. And the chaos from a couple of days ago was nothing compared to yesterday.
Continue readingOld Dog… Same Old Tricks
It seems I’m nothing if not predictable. I’m just really getting going on the assembly of the Marblewood upgrade amplifier and I’m already doing design work for another project. This is in addition to the two other amplifiers which are already in the queue.
Continue readingMoving Forward
I had an opportunity to spend some time on the Marblewood upgrade amplifier. The mechanicals for this project are all coming together nicely.
Continue readingA Quick Question
This site supports RSS feeds, but it’s something that isn’t differentiated in my reader statistics. So, if you regularly see new content on my site via an RSS feed would you please leave a comment to that effect below. I’m curious to see how many are using this technology.
Thanks
Update on the Marblewood Upgrade Amplifier
After getting some chores out of the way this weekend, I got an opportunity to do some chassis work. The project is proceeding well.
Continue reading“Popcorn” Audio
There are some projects which are not big or flashy. Simple little things which are easy to build and fill a tiny but important niche in our audio setups. I call these “popcorn” projects.
Continue readingAn Update, Update, Update?
We got some unseasonably nice weather here today. Clear blue skies and about 72° outside. This meant I got some time in my shop to move projects forward.
Continue readingTone Controls?
For the last couple of days I’ve been revisiting an idea for a “tone control” preamp. I had originally decided to go one way with the design, but then something happened to change my mind. My ears got involved.
Continue readingAn Update on the Update
I haven’t talked about the new amp in a while so I thought I’d share current progress.
Continue readingSome New 6L6s
Yesterday I auditioned some new reissue Tung-Sol 6L6GC STR tubes in the 6L6 “Spalted Alder” amp. I was quite surprised at the results.
Continue readingThe Other Bits
I seriously despise cheap interconnects. And I don’t mean inexpensive, I mean cheap.
Continue readingCathode Bypass and Frequency Range, Part II
In my last post I threw in a comment at the end pointing out that lowering plate load resistance will play a part in how the cathode bypass capacitor behaves. Someone asked, so I thought an example of how this affects things might be in order.
Continue readingCathode Bypass and Frequency Range
There seems to be a little confusion concerning the true effects of cathode bypass on low frequency amplifier performance. The truth is, gain benefits from cathode bypass are limited. And not by capacitor size, but by the basic design of the amplifier stage.
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