[G.Trenchev]

Indeed great build,love the ROE's

 

[dhaninugraha]

a humble CMoy:
 

 
board was made by psychaudio of audiophile-id. resistors are 1/8W Roederstein, caps are 2x 220uF Elna Cerafines, and there's the class-A biased AD825.
 
caps were piggybacked and zip-tied simply because... I had nothing to do, and I wanted to smell some solder fume, LOL. I ran out of 220uF 35V Cerafines so I slapped on the 220uF 25V anyway.
 
resistors on the input cap pads (1KOhm and 332Ohm) were actually meant for opamp input impedance matching; which turned out kinda unnecessary since R4 and R3 (the usual gain resistors) in parallel are ~1.3KOhm. oh well, they provided quite some attenuation anyway.
 
not visible in the picture are the C2s (opamp rail bypass caps), which are Vishay 1837s placed under the board.
 
 

 

[Garage1217]

Old pics deleted
 
 
 
 
 
 
 

 

[Ferrari]

[size=x-small]Thanks for the kind words gents ![/size]
 
[size=x-small]@ Forte[/size]
[size=x-small]I’m afraid that we are a bit too late for that. [/size]
[size=x-small]The perfboards power supplies are no longer sitting on my table but are already built in one or other devices like this M3. [/size]
[size=x-small]Taking the amp apart, just to take a photo of the perfboard underside is really too much work.

[/size]
[size=x-small]I will remember that for the next time when I make something on perfboard.[/size]
 
 
 
[size=x-small][/size]
[size=x-small][/size]

 

[tranhieu]

May I ask what the perfboard is for in the above photos?
Looks great as always Ferrari

 

[Lil' Knight]

The perfboards power supplies are no longer sitting on my table but are already built in one or other devices like this M3.

 

[Ferrari]

[size=x-small]Indeed, it’s a LT1085 based power supply, with Roederstein filter cap on a recycled heatsink.[/size]
[size=x-small]Actually parts from my parts bin that otherwise never get used.[/size]

 

[32y0]

One channel of an EL519 based power amp. Still without PSU and transformers, but ready for testing.

 

[akgfan]

Finally, I finished rebuilding my amp. All PCBs and capacitors are new. However, I'm not able to make that wiring look nice, as always.
 
I know, it's not the ultimate amp, nor cool tube amp, but I like it with GrubDAC. There is almost no noticable hum even with high sensitive earbuds. RMAA shows strong second and third harmonics.

 

 

 

[bidoux]

Quote:

One channel of an EL519 based power amp. Still without PSU and transformers, but ready for testing.

I would love to see some more details, how you built it, the schematic and the power supply if you don't mind.

 

[Garage1217]

Nice work!
 
 
 
 

 

[Flops]

The casing looks fantastic!

 

[nattonrice]

Here is my quick and dirty kgss.
DACT, Marc's sexy teflon jack, teflon coated HV spc, fully encapsulated sumr traffo, rsa approved gold knob.
 
Not bad for a couple of hours work.
 
o2 + this = whoa.
 
 
 

 
 

 
 

 
 

 

[milosz]

CAN YOU GUESS WHAT THIS IS????
 
(Winner gets a Chinese 12AU7 with an open filament!)
 

 

[nattonrice]

Apart from a (possible) tube phono stage?  =P