Sorry, it is a commercial project, I want to get some return of investments before I start sharing schematics. I revealed already all details one by one in discussions helping others, I just can't share the result of the work, I want to sell few amps before our Chinese comrades start selling copies.
There is a whole thread about "Magnificence TV tubes", you can learn and ask questions if something is not clear yet.
There is a whole thread about "Magnificence TV tubes", you can learn and ask questions if something is not clear yet.
Looking at those infra red (?) pictures you are pointing to their plate dissipation?
Looking at those infra red (?) pictures you are pointing to their plate dissipation?
Plates dissipate the same power like EL34 in the same amp, but filaments draw more power. I was concerned about power transformer and decided that 50 degrees C temperature rise would be too much, so decided there will be no versions of the amp on such small chassis with 6CB5A tubes, even though they sound the best. Not like I can tell that the sound differs, it is a subconscious feeling of cleaner sound.
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Thanks Wavebourn for your explanation.
By the way, how (or with which application)did you made those photographs?
I did and was shocked by the purchase : around 200 Euro's
here in Holland...... End of story for me.
Of course in my pre-retirement time, as a electronics designer that would be
no problem but now...........
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Wavebourn
A good idea to make a decorative amplifier in the form of a night light (glows at night).
Your amplifiers can be technically very good, and they are pretty cool. The design suffers,
not everyone likes your techno punk design, the circle of buyers is very small.
Not every room needs to see wires and transformers.
For a good idea, you need a companion designer, this will give you the opportunity to sell an amplifier without compromise.
A good idea to make a decorative amplifier in the form of a night light (glows at night).
Your amplifiers can be technically very good, and they are pretty cool. The design suffers,
not everyone likes your techno punk design, the circle of buyers is very small.
Not every room needs to see wires and transformers.
For a good idea, you need a companion designer, this will give you the opportunity to sell an amplifier without compromise.
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Finally finished up an interesting build for an Aikido-based OTL headphone amp with enough drive for low impedance cans. The boards are available on ebay for just $30. hvforless on eBay They can be configured with 6BL7 or 6BX7, as well as 6SN7, and uses a standard 5AR4 rectifier.
You can read about the rest of the build and see more pics here DIY Audio Electronics from Zynsonix.com: Octal OTL DIY Tube Headphone Amp
You can read about the rest of the build and see more pics here DIY Audio Electronics from Zynsonix.com: Octal OTL DIY Tube Headphone Amp
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Just a quick shot of "tchoob pron" to celebrate a new lens for my camera. Some old Westinghouse 6B4G's working together with a pair of Philips E83F's.
Funny thing that phosphorescence on the glass of those Westinghouse tubes... My RCA:s don't have that.
Sound is nice, though...
Funny thing that phosphorescence on the glass of those Westinghouse tubes... My RCA:s don't have that.
Sound is nice, though...
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My PP amplifier it's a live, and working very well, project finished ..... and I thinking, to build, another one, next year . Over the years, I have build, many amps, SS and tube, but this it's the best, sounding, amp I ever build .
Regards,
Alex
opera de arta
Fantastic attention to details, Congrats!
