Amplifier must be in use some time (years), and than you know is it good. Regards
Here is link of site where I have find schematics:
Google Image Result for http://www.postimage.org/PqHZCES.jpg
Google Image Result for http://www.postimage.org/PqHZCES.jpg
Thanks Apex...I see it...so I think "dot/catode" on body NSL 32 must be same with "dot" code on PCB B500/H900. Catode NSL-32 connected with R 6K8/2W and negatif dioda zener 15V. Its OK?
Pozdrav.
1,2 - two pairs 2SA/2SC with +/-56V you will get about 120W/8R (resonable THD)
Regards
the 1943/5200 have a very poor SOAR at higher voltages.
Using +-56Vdc should give good 8ohm performance, but these devices can only manage 40 to 45degree phase angle when kept cool.
However, using +-50Vdc, an 8ohm load of 60degree phase angle can be driven to full power of ~110W. You still have to keep them cool to stay within the de-rated 100ms SOAR
Using +-56Vdc should give good 8ohm performance, but these devices can only manage 40 to 45degree phase angle when kept cool.
However, using +-50Vdc, an 8ohm load of 60degree phase angle can be driven to full power of ~110W. You still have to keep them cool to stay within the de-rated 100ms SOAR
apex
sir,
i bought all the b500 components...i noticed that some components in the schematic differ from the pcb placement guide...
i need to know which one to follow...should i follow the schema or the pcb???...im using two psu for testing 1 is 50 0 50vac @20amps 2nd is 55 0 55vac @25amps...
tnx...
regards...
sir,
i bought all the b500 components...i noticed that some components in the schematic differ from the pcb placement guide...
i need to know which one to follow...should i follow the schema or the pcb???...im using two psu for testing 1 is 50 0 50vac @20amps 2nd is 55 0 55vac @25amps...
tnx...
regards...
Only difference post #1 and post #8 is 2k2/5W instead 4k7/5W both is OK, but if you use 2x50v or 2x55v put 2k2 or 3k3, for higher rail voltage use 4k7.
Regards
tnx, sir...
i also noticed differ diodes
post #1 used IN4007
post #2 used IN4004
which diode should i use for maximum safety operation with these rail voltages???...
i'm also planning of installing 8 pairs per rail...
but i will use 4 pairs for testing...
tnx...
regards...
Attachments
engel,
yupfzzz... i've noticed they have same current rating only that IN4007 has a much higher voltage rating than IN4004...
i just want sir mile's advice...anyway...tnx for your advice...i highly appreciated it...
i'd be using IN4007 as you adviced...
tnx...
regards...