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The next big thing [message #95643] Sun, 22 May 2022 14:19 Go to previous message
gofar99 is currently offline  gofar99
Messages: 1720
Registered: May 2010
Location: Southern Arizona
Illuminati (4th Degree)
Hi Everyone, Now that the 832 amps is finished and working fine...I needed to start something else. Here is a photo of the thing. It is clear that some serious power is involved. A pair of 6AS7s and a pair of 6SL7s is fairly serious. The absence of output trannies is sort of a give away. So what is it? A headphone amp. SRPP input stage and SRPP capacitor coupled output stage. Yes 6AS7s will work as a SRPP. 240 volts B+ at 57 ma. Now if the math works it can deliver +/- 15 volts into 64 ohms. That is serious loudness as many phones only need a handful of milli watts. If it doesn't work as a phone amp, it will be one humongous line stage. More to follow as it gets built. /forum/index.php?t=getfile&id=3068&private=0
  • Attachment: Phone Amp.jpg
    (Size: 586.69KB, Downloaded 110 times)


Good Listening
Bruce
 
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