jdg123,
I Love your construction.
I Love the weight saver and size saver idea.
I always build mono-blocks anymore, smaller, lighter, and also low power.
And, I love your sad violin player.
The first time I came across the sad violin player idea, was my 5th grade band teacher, Mr. Adams, making motions and a face of a sad violin player.
Thanks for reminding me of a wonderful time!
And I, a want-to-be amateur photographer, Love the medium to wide angle lens, that included your feet in your third photo.
I Love your construction.
I Love the weight saver and size saver idea.
I always build mono-blocks anymore, smaller, lighter, and also low power.
And, I love your sad violin player.
The first time I came across the sad violin player idea, was my 5th grade band teacher, Mr. Adams, making motions and a face of a sad violin player.
Thanks for reminding me of a wonderful time!
And I, a want-to-be amateur photographer, Love the medium to wide angle lens, that included your feet in your third photo.
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I have come to understand that I do not build in a favored style, that's OK. It works for me ;-))
Well don't worry about that, your previous build was shared in a local telegram group as an example and people really liked the vertical design
Very, very nice jdg123.
I like that you have succeeded with the vertical style, I have thought a build for a long time but have not gotten around certain things. I have looked at what has been built before and always come back to Nagra but you have solved it where I am stuck, well done. It would not surprise me if this becomes a completely new building style, if there will be more builds by me, I will copy without shame.
Anders
I like that you have succeeded with the vertical style, I have thought a build for a long time but have not gotten around certain things. I have looked at what has been built before and always come back to Nagra but you have solved it where I am stuck, well done. It would not surprise me if this becomes a completely new building style, if there will be more builds by me, I will copy without shame.
Anders
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Thanks! The inside would probably cause you to run screaming out of the room. It went through a few "revisions" before getting to it's current state. A quick rundown of the innards. The main power choke is 8H from a 50's ham transmitter. There is a small crc filtered smps heating the small tubes and handling lv dc requirements. LTP's have a CCS in the tails. There is a rotary switch on the back, connected to a couple banana jacks and to the 10 ohm KT88 cathode resistors for bias adj. Bias adj pots are in the bottom cover. No need to open the hammond chassis to adj. There's also a rotary triode/UL switch on the back. Gonna' clean up the insides a bit a add some feedback and see how it does.
Rebuilt the 6V6 amp. 6EJ7 triode strapped. 6V6 running in beam tetrode mode with regulated screen supply (0A2, 0B2, MOSFET source follower). 9% plate to grid feedback and 8dB GNFB. In lieu of an indicator light, I stuffed a pair of blue LEDs in antiparallel under the 6CG3. It's cheesy, but if McIntosh can do it, why can't I?
Attachments
In lieu of an indicator light, I stuffed a pair of blue LEDs in antiparallel under the 6CG3. It's cheesy, but if McIntosh can do it, why can't I?
Well, if that floats your boat, why not? On the other hand, if the blue LED overwhelms any light originating from the other tubes, such as the blue fluorescence from output tubes which I love (not sure the 6V6 does that anyway) then maybe not. But again, whatever floats your boat.
My trusty workhorse
This is the amp I built in 2013 and modified a few times from then on. I use it for everyday listening and oh my kitties, it can make a lot of racket. It's a modified Baby Huey design that is fully balanced, uses conventional bias circuits (120ohm and 220uF capacitor IIRC) for simplicity, and has a tube-based constant current source in the differential stage. The only semiconductors here are 1N4007 diodes for negative voltage . The only volume control is a stepped attenuator on the back panel, as the amp is driven from a mixer that has separate volume controls for the inputs.
This is the amp I built in 2013 and modified a few times from then on. I use it for everyday listening and oh my kitties, it can make a lot of racket
. It's a modified Baby Huey design that is fully balanced, uses conventional bias circuits (120ohm and 220uF capacitor IIRC) for simplicity, and has a tube-based constant current source in the differential stage. The only semiconductors here are 1N4007 diodes for negative voltage . The only volume control is a stepped attenuator on the back panel, as the amp is driven from a mixer that has separate volume controls for the inputs.
