your link took me to post501.I know what's on your mind, something like this or even more outputs.
Where was I supposed to go, to see "this"?
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http://www.diyaudio.com/forums/solid-state/193923-simple-symetrical-amplifier-7.html#post2682343
takes me to post347.
whereas
http://www.diyaudio.com/forums/solid-state/193923-simple-symetrical-amplifier-35.html#post2682343
takes me to post501.
takes me to post347.
whereas
http://www.diyaudio.com/forums/solid-state/193923-simple-symetrical-amplifier-35.html#post2682343
takes me to post501.
Lazy Cat,
A few question here;
1) Can you please post the parts listing for SSA BIGBT 1.1 and the version that uses Lateral MOSFet [rev. 1.4 on Alex MM PCB], in order for us DIYer see the specified rating for each part, also it would be very helpful if you can include possible substitute for the given devices. I will be checking my local supplier if these devices is available to them.
2) Will it be possible to use any suitable PSU+DC protect on this amp? [I am thinking of using one of APExAudios’ PSU design] Hopefully APEXAudio will allow me... It is very encouraging for a DIYer like for an amp design that includes DC protect on board, however my interest is on both L-MosFET and BIGBT Basic that uses 24VAC supply. Any plans in including DC-protect on these versions?
NICO RAS,
Your PCB version is of different kind, will you share the PCB lay-out for etching?
Alex MM,
Please to not tire in providing remarkable PCBs to DIYAudio for without it, DIYer like me will surely find building an amp to be a very tedious and slow progress. Your continuing effort is surely invaluable. Thank you!
It was reassuring to know that authorities on amp building in DIYAudio has been complimenting a lot on the SSA design, the likes of AKSA, DESTROYER X, WaHAB, MiiB, AndrewT...to name a few and of course NICO RAS.
Regards,
ACO
A few question here;
1) Can you please post the parts listing for SSA BIGBT 1.1 and the version that uses Lateral MOSFet [rev. 1.4 on Alex MM PCB], in order for us DIYer see the specified rating for each part, also it would be very helpful if you can include possible substitute for the given devices. I will be checking my local supplier if these devices is available to them.
2) Will it be possible to use any suitable PSU+DC protect on this amp? [I am thinking of using one of APExAudios’ PSU design] Hopefully APEXAudio will allow me... It is very encouraging for a DIYer like for an amp design that includes DC protect on board, however my interest is on both L-MosFET and BIGBT Basic that uses 24VAC supply. Any plans in including DC-protect on these versions?
NICO RAS,
Your PCB version is of different kind, will you share the PCB lay-out for etching?
Alex MM,
Please to not tire in providing remarkable PCBs to DIYAudio for without it, DIYer like me will surely find building an amp to be a very tedious and slow progress. Your continuing effort is surely invaluable. Thank you!
It was reassuring to know that authorities on amp building in DIYAudio has been complimenting a lot on the SSA design, the likes of AKSA, DESTROYER X, WaHAB, MiiB, AndrewT...to name a few and of course NICO RAS.
Regards,
ACO
SSA BJT EC AMPLIWIRE-STYLE
HI.
The SSAstage and the listening-impresions given by members and constructor looks very promising!
I wonder if this outputstage can be used ?
My simulator says yes, but I`m not a simulatorwisard as some of you are.
I`m in the prosess of building a Amp with this output, ( bought and matched transistors)
but I`ll be happy if I can use SSA instead of the complicatet Electrocompaniet schematic.
HI.
The SSAstage and the listening-impresions given by members and constructor looks very promising!
I wonder if this outputstage can be used ?
My simulator says yes, but I`m not a simulatorwisard as some of you are.
I`m in the prosess of building a Amp with this output, ( bought and matched transistors)
but I`ll be happy if I can use SSA instead of the complicatet Electrocompaniet schematic.
SSA BIGBT Basic PWS
Yes I know, they are special transistors. Look to BF471/472, BF871/872, 2SC2911/2SA1209 or similar TO-126, 60MHz and higher transistors.
Here's how you get +/-60V.
P.S. I am a Lazy Cat not a car.
Yes I know, they are special transistors. Look to BF471/472, BF871/872, 2SC2911/2SA1209 or similar TO-126, 60MHz and higher transistors.
Here's how you get +/-60V.
P.S. I am a Lazy Cat not a car.
Attachments
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Hi styrkv
Your sch looks very promising, if you calculated all stages bias currents it will work. SSA front-end will do the job.
SSA is very simple front-end, symmetrically low-Z GND referenced, consequently resulting in low noise, high stability, minimal DC offset and because of the CF loop, very high speed.
SSA's front-end collector current is not rails potential dependant as long as they are higher than 15 V. The only limiting parameters are cascode BJT's Vcemax and Pmax.
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