I have not seen Lineup around the forums for some time now.
he is back!
3 Transistor HP Amplifier with low dist
Hi Guys, how many watts does this amp draw ? I was thinking of using batteries. Thanks.
Easily read-off from schematics in reply #54 or #56. 20V, 1.1 Amps, 22 Watts. For 4 Watts audio output. This is in the group of class-A amplifiers which only approach 25% efficiency.
This is a poor pick for battery power.
Another rainy day and still no vaccine shot in sight.
What else to do than making another PCB-layout of lineup´s super simple, single-ended class-A BJT designs.
So next PCB order is lineup´s headphone amp and this cute little class-A amp.
What else to do than making another PCB-layout of lineup´s super simple, single-ended class-A BJT designs.
So next PCB order is lineup´s headphone amp and this cute little class-A amp.
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Thanks X!Nice work there, Joensd!
The circuit is simple enough which was the attraction/beauty for me.
I have to admit that despite the Passlabs&Class-A craze around here I still haven´t properly made anything class-A so that will be my first!
It really looks good on paper and can be done with parts from the drawer.
My Sennheiser HD598 is much more modest than the HE6i so I´ll use another of lineup´s designs hopefully pretty soon:
3 Transistor HP Amplifier with low dist
Really excited to see how a single-ended class-a design compares to all the headphone amps I built over the years.
The 4W class-A amp will eventually power my Mark Audio A7.3 in an active setup so power needs are pretty low to get sufficiently loud.
Order a batch of 5 for myself but I can let go of up to 3 PCBs for 2.50$ plus shipping.
Hi Jens, count me in for a pair pls. Cheers, Ernst
Hallo Ernst,Hi Jens, count me in for a pair pls. Cheers, Ernst
unfortunately the 3 leftover PCBs are already spoken for but as I have other projects in line before this one I might you give you my pair.
Worst case: I can order another batch at a later point.
Let me think about this for a while.
my Diy pcb etching version.
We are lucky that we have you here my friend!
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