Post your Solid State pics here

[EUVL]

Right at the bottom of the "Post Reply" page, you can attach files.
You need to reduce them to 100kB and less than 1000 pixels first.


Patrick

 

[syn08]

VSOP amp

An externally hosted image should be here but it was not working when we last tested it.

Specs are here.

 

[jwb]

My new design precision SS preamp.

Inspirational!

 

[nigelwright7557]

My new hybrid power amp.
12AU7 front end with MOSFET output transistors.

 

[nigelwright7557]

My new hybrid power amp.
12AU7 front end with MOSFET output transistors.

 

[Progg70]

nigelwright7557: - Do tou have any pictures for the schematic. Have you any review for it or is it your own construction.

regard

Progg70

 

[bogdan_borko]

Re: VSOP amp

An externally hosted image should be here but it was not working when we last tested it.

Specs are here.

You could stick a few transistors more in that thing!

 

[jacco vermeulen]

Patience, this is Mr Popa's first shot.

Next one may have an output stage with 9 pairs of 230W power devices, 90V rails, and go by the name OP-WAN.
And a cheaper input opamp model, the Hello OAP-3500.

(still 6 months lead time on the Onsemi TT-devices, pff)

 

[nigelwright7557]

nigelwright7557: - Do tou have any pictures for the schematic. Have you any review for it or is it your own construction.

regard

Progg70

It is my own design and construction.

Its basically an SRPP valve front end with a fairly standard class AB SS amplifier with IRFP920/9240 on the output.

 

[CBS240]

Re: Re: VSOP amp

An externally hosted image should be here but it was not working when we last tested it.

Specs are here.

Originally posted by bogdan_borko



You could stick a few transistors more in that thing!

Yea, why waste so much empty PCB space? Not environmentally friendly there.

You ought to be able to cram the PCB with lots of them.

...like this....

 

[CBS240]

But you can't forget to utilize the back side either.

 

[syn08]

But you can't forget to utilize the back side either.

Know what? I'm balking at a full SMD design for quite some time... Now if only those japanese trannies would come in SMD as well... Or even better, if they could morph into SMD or through hole as required

 

[Bonsai]

Nice looking board Syn08!

 

[RSK]

RAS200 amp

Designed by Nico Ras
Sounds wonderfull. Waiting for the case to complete.
To update soon on full completion.

Raj.

 

[east electronics]

Re: RAS200 amp

Designed by Nico Ras
Sounds wonderfull. Waiting for the case to complete.
To update soon on full completion.

Raj.

please can you post a schematic ???? i would be very interested to produce something designed from niko

 

[RSK]

RAS200

Hi Sakis,
Please follow this (www.digisec.co.za/ras/)
Mail him for further info.

Cheers,
Raj.

 

[Progg70]

And the sound is…!

One thing is to build things. That who matter for me is how it’s sounds and deliver the music. The focus is the experience.

For me the PCB look more like a computer card then something who handling analog signals with all problems that involve!

Can you tell me, or us I hope have an interest, how the sound and the experience are!? It’s not enough to say that it sounds marvelous…

regard

Progg70

 

[jwb]

I'm getting pretty close to a working project on this preamp. Here's the board under the command of the mighty Atmel STK-500. The software can now change the input, change the coupling, and adjust the volume via my fancy rotary encoder. I still need to write more software to accept remote control commands and to drive the display and scan the front panel buttons.

An externally hosted image should be here but it was not working when we last tested it.

 

[luka]

wow sick project you have right there!!

 

[Salas]

Computer motherboard level industrial grade result. Much design work... Looks fantastic.
What are those loops on the shunt reg IRF Mosfets? Mini sinks?