[Avro_Arrow]

I don't think it would have made an interesting sound for very
long before the magic smoke would have decided it wanted to
be somewhere else...
 
Quote:

Hehe it would have made for an interesting sound.

 

[Avro_Arrow]

I think this one is finally correct.
Please check it over for any net or value errors.
Thanks everyone.
 
 

 

[Bizzel]

Could I ask for another pair of eyes on this PCB layout please? It's a 'backplane' for a Dynamid amp so it accomodates two Dynalo boards with headers for inputs, outputs and a stepped attenuator. I've made a 1:1 scale printout and checked that the sizing and hole alignment is correct for my chosen case but I'm just wondering if anything obvious stands out as being wrong.
 

 

[ajuztam]

Hi lads. Sorry for digging out an old thread. I'm building a dynalo at the moment and I want to use it as a headphone amp and a preamp. How can I get a RCA output from it that I can feed my amp with without hurting it. There will be a dac instaled with it in one case and I want to be able to feed my amp with a signal from dac going through dynalo amp. Is that possible? please advise me on what to do to achieve both Headphone out and RCA out.  Thanks in advance

 

[luke99]

I had some problems with my Dynalo, but its going great. I could bias the front end as the trimpots were causing probs. It has Salas shunts and a separate capacitance multiplier psu. Will try and take some pics.

 

[ajuztam]

Are your transistors soldered or they sit in sockets? I'm also building one but i'm not that far yet. I recommend swapping transistors from working side. Did you check all test points and compared them to given values?

 

[luke99]

Hi Ajuztam, all voltages are correct apart from the ones I have mentioned above. Transistors are all soldered, only the jfets use sockets and R11 and R14.
 
Anyone else have any ideas?

 

[luke99]

 

 

 
Cap multiplier, the second is a Salas Shunt and Dynalo on top, third is my chaotic desk, I got so much hifi and I usually listen FM National Radio