I felt like building something neat with enough power and a soft sound so i went for a combo with a class-T amplifier from www.41hz.com that puts out a mere 50Watts per channel in 8 ohms and doubles into 4 ohms, the model i chose was Amp10b.
Tha transformer delivers 2x21VAC and is rated at 300VA, most certainly enough for this amp.
A simple tube buffer in front of the amplifier adds up to a nice combination, the tubes are two NOS E88CC from Telefunken.
Tha transformer delivers 2x21VAC and is rated at 300VA, most certainly enough for this amp.
A simple tube buffer in front of the amplifier adds up to a nice combination, the tubes are two NOS E88CC from Telefunken.
An externally hosted image should be here but it was not working when we last tested it.
As with all class-D or class-T amplifiers, any accidentaly shortcircuited output terminals means instant death to the amplifier so insulated terminals is necessary.
The cabinet is from Audiokit Home Page -very nice chassis, i swapped the top steel cover to one made of aluminium.
An externally hosted image should be here but it was not working when we last tested it.
The cabinet is from Audiokit Home Page -very nice chassis, i swapped the top steel cover to one made of aluminium.
An externally hosted image should be here but it was not working when we last tested it.
Another angle to show off the PCB with the two wonderful tubes..
An externally hosted image should be here but it was not working when we last tested it.
The enclosure comes from audiokit in Italy, (Audiokit Home Page)
An externally hosted image should be here but it was not working when we last tested it.
>TheShaman> Yes, it´s the galaxy line, really nice chassis, i swapped the top lid from the original steel to a aluminium dito.
>Josephjcole> I found the buffer PCB on DIYGene - Electronics DIY, Hi Fi , amplifier i already had the components and tubes.
Regarding the sound, i tested the tubebuffer with other amplifiers and i can tell you that in this particular amplifier it is the Amp10 that has the sonic limitations, not the tubebuffer, it sounds very transparent with wonderful bass, just make sure that the tubes get enough filament voltage otherwise you will have a very thin soundstage.
>Josephjcole> I found the buffer PCB on DIYGene - Electronics DIY, Hi Fi , amplifier i already had the components and tubes.
Regarding the sound, i tested the tubebuffer with other amplifiers and i can tell you that in this particular amplifier it is the Amp10 that has the sonic limitations, not the tubebuffer, it sounds very transparent with wonderful bass, just make sure that the tubes get enough filament voltage otherwise you will have a very thin soundstage.
i checked out the amplifier with a scope today, this is 25Watt over 4 ohms load
Even with the mute switch there are a few turn-on pops that i have to get rid of somehow..
An externally hosted image should be here but it was not working when we last tested it.
Even with the mute switch there are a few turn-on pops that i have to get rid of somehow..
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new look, i can't decide whether i go with Phillips or Torx on the top lid... pls help me out here!
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
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I added a muteswitch on the rear of the amp and a LED on the front, the camera says blue but i say purple and that the bloody camera lies.. 
BTW, a very happy new year to yer all!
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
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BTW, a very happy new year to yer all!
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