Can you post your schematic please...Direct to speaker(OTL/ACL), without dc protect
Thank you🙂
Greetings
Beautiful. I imagine it sounds wonderful. Transparent?
Did you use Allen Bradley in the feedback path? I have run a 6C33C OTL with both AB and with Caddock TF020 series resistors. Both great but different.
Did you use Allen Bradley in the feedback path? I have run a 6C33C OTL with both AB and with Caddock TF020 series resistors. Both great but different.
Thanks, feedback resistors are simple metal film but i use to listen out of fb
Transperant yes, -3db at 190Khz, 0db at 20Hz
I believe circlotron behaviour is much better but needs 4 of them for each channel
Transperant yes, -3db at 190Khz, 0db at 20Hz
I believe circlotron behaviour is much better but needs 4 of them for each channel
grunf.... nice and clean build, do you have any schema?
for now, the scheme of the input level, output level is still in fine finishing so that the final scheme will be published in a separate post about this amplifier.
the last ten years I have devoted DIY Pass amplifiers and this is my first solo design, I was not expecting to be great, but after a little modification I got a great amplifier

Thanks for sharing and hoping for you full final schema...BTW, what is the bias current of the 6S4P?for now, the scheme of the input level, output level is still in fine finishing so that the final scheme will be published in a separate post about this amplifier.
the last ten years I have devoted DIY Pass amplifiers and this is my first solo design, I was not expecting to be great, but after a little modification I got a great amplifier
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Thanks for sharing and hoping for you full final schema...BTW, what is the bias current of the 6S4P?
about 10mA....
http://www.supertex.com/pdf/datasheets/DN2540.pdf
http://waltjung.org/PDFs/Sources_101_P2.pdf
I rebuild my We91a and changed the pentode from 6sj7 to a c3o (6.3v version of c3m).
http://i76.servimg.com/u/f76/15/66/34/86/img-2011.jpg
http://i76.servimg.com/u/f76/15/66/34/86/img-2012.jpg
http://i76.servimg.com/u/f76/15/66/34/86/img-2011.jpg
http://i76.servimg.com/u/f76/15/66/34/86/img-2012.jpg
Well, I have several tube amps...
But these times my everyday one is a Solid State MARANTZ 2250B :
A+!
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.
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.
An externally hosted image should be here but it was not working when we last tested it.
But these times my everyday one is a Solid State MARANTZ 2250B :
An externally hosted image should be here but it was not working when we last tested it.
A+!
The “Beast” is born
After many working hours, and redesign moments the amplifier delivered first tunes, and it sound gorgeous!
After many working hours, and redesign moments the amplifier delivered first tunes, and it sound gorgeous!
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.
Hi, interesting! I do believe however that beercans under your turntable would sound even more liquid.. 😀
I started with soup cans, chick peas, beer (drank them) and finally settled with coke cans.
The EML 5u4 are quite good. But, I also have a pair of NOS RCA VT244 which IMO is better value for money.
The EML 5u4 are quite good. But, I also have a pair of NOS RCA VT244 which IMO is better value for money.
The “Beast” is born
After many working hours, and redesign moments the amplifier delivered first tunes, and it sound gorgeous!
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.
Blue is the color of the sky and the sea. Blue is the color of the soul also.
Beautiful amp, and with balanced in. Professional😉
Replace the little flag for a Svenska one. HA!😀
So, you're the guy who regularly outbid me at eBay....ha! ha! ha!.
Getting a matched pair of TT21 is difficult .
I uses TT22 for my SEUL built, running p-k at 540v @ 80mA.
Believe your's must be damn hot!
Cheers!
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