Post your Solid State pics here.

[lanchile]

Originally Posted by apexaudio

My mini PA Amp

Very nice!. I would just turn upside down those boards, since with time all dust will get inside amp and can get on the boards connections and accumulate and get a short.you have more chances to get more problems this way than putting it upside down. just my opinion!

[apexaudio]

There is cooler fan and tunel heatsink any dust cant go insaid amp. I turn upside down those boards in future amps.

[lanchile]

Originally Posted by apexaudio

There is cooler fan and tunel heatsink any dust cant go insaid amp. I turn upside down those boards in future amps.

Try to get a bigger heat sink, that way you can eliminate the fan (noise).

[apexaudio]

In PA use noise is not a problem, fan turn on after heatsink was worm, than music level is so loud than can not hear the fan noise.

[lanchile]

Originally Posted by apexaudio

In PA use noise is not a problem, fan turn on after heatsink was worm, than music level is so loud than can not hear the fan noise.

Well, in that case, I guess it is ok!

[andrewlebon]

hi diyers
greetings picture of dr boras stagemaster mk 2
will be posting pictures of btl2000 watts very soon with circuit and pcb
thanking you
Andrew lebon

[black]

studiomaster mk2 sound good? Why ditch and final transistors use if possible and with the printed wiring

[black]

Originally Posted by black

stagemaster mk2 sound good? Why ditch and final transistors use if possible and with the printed wiring

[roger_lew]

Here's some pics of my ZCA I built about 7 months ago. The rugged industrial look probably isn't for everyone. I kinda like that you can look at it and see how it works. Each channel has eight 30 ohm 10 watt resistors arranged to provide the 15 ohm load specified by Mark. I used 8/channel basically to increase the surface area and help with cooling. I don't really know if it helped or not, they run at about 145F (66C). Heatinks were purchased as a set from ebay.

Fuse is integrated into the receptacle. In the out-of-focus picture the chassis ground is the green wire (sorry, I forgot to turn macro on for that one ).

Transformer is an 18 + 18 250VA Avel. Each secondary has its own bridge and filtering and powers a single channel. Eventually I'll get new filter caps and play with better (?) rectifier options. I'm use Erse Super Q 10mH 500w inductors as chokes.

I use it to bi-amp mid/tweeters in my 3 ways which both have series caps so I can get away without the electrolytic output caps (they are functional in the photo).

The last photo shows an important reminder to my future self.

The sound is quite pleasant. Percussion, vocals, and instrumentals sound extremely dynamic and lively. I have noticed it doesn't sound as good as my regulated gainclone when sources have limited dynamic range (television commercials). The ZCA sounds more distorted at comparative volume levels. With well mixed sources distortion seems subjectively low or maybe just more enjoyable to my ears.

[vixr]

These are the SSB01 PCBs Per-Anders is giving away...turned out pretty good. I still have one more to build before I can put them in an amp...