Change medium transistors...

[Netlist]

Originally posted by Dj BASS AMP
i only want to now if i can to change from 2SC2073/A940 to MJE15030/1 or TIP41/2C without ask for more power...

i only want to now if i can to change them and the amp still work... OK?

2SC2073: TV-VA, NF/S-L, 150V, 1,5A, 25W, 4MHz
2SA940 : TV-VA, NF/S-L, 150V, 1,5A, 25W, 4MHz
MJE15030/1: NF-L, 150/150V, 8A, 50W, >30MHz
TIP41/2C= BD243C/BD244C: NF-L, 115V, 6A, 65W, >3MHz


IN THEORIE you can change 2SC2073/A940 to MJE15030/1 or TIP41/2C if your rails are 70V. But read twice what Christer and
janneman tell you!

/Hugo - still can't figure out why

[Christer]

Originally posted by Netlist



2SC2073: TV-VA, NF/S-L, 150V, 1,5A, 25W, 4MHz
2SA940 : TV-VA, NF/S-L, 150V, 1,5A, 25W, 4MHz
MJE15030/1: NF-L, 150/150V, 8A, 50W, >30MHz
TIP41/2C= BD243C/BD244C: NF-L, 115V, 6A, 65W, >3MHz


IN THEORIE you can change 2SC2073/A940 to MJE15030/1 or TIP41/2C if your rails are 70V. But read twice what Christer and
janneman tell you!

/Hugo - still can't figure out why

That table says that TIP41/42 should NOT be used. We
don't know where the transistor is located in the topology, or
even what the topology is, so we must assume that Vce might
get close to 140V since the rails were +/- 70V.

[Netlist]

Originally posted by Christer





That table says that TIP41/42 should NOT be used. We
don't know where the transistor is located in the topology, or
even what the topology is, so we must assume that Vce might
get close to 140V since the rails were +/- 70V.

Correct; Shoud be:
TIP41/2D= BD243D/BD244D: NF-L, 160V, 6A, 65W, >3MHz

Thank you Christer

/Hugo - Getting confused by DJ's

[Dj BASS AMP]

can i Change the 2SC2690A/A1220A to MJE340/350 ????
and i need a transistor compatible to 2SC1815/A1015....

thanks it is important..!!

[Dj BASS AMP]

any one...

[peranders]

Originally posted by Dj BASS AMP
can i Change the 2SC2690A/A1220A to MJE340/350 ????
and i need a transistor compatible to 2SC1815/A1015....

thanks it is important..!!

DJ, if you don't have any goal with the change, why is it important

/P-A - man without enough knowledge of understanding DJ of Israel.

[Dj BASS AMP]

I have a goal !!!!! i have amp and some transistors was a explode !!! and in the company that i buy the new parts..... dont have a 2SC2690A/A1220A and 2SC1815/A1015.
so i need a compatible parts.

now i need to know that the compatible of my parts...

2SC2690A/A1220A can i change to MJE340/350 or what ??
2SC1815/A1015 can i change to BC546 or what ?

the O/P transistors i change them already...
from 2SC5198/A1941 to 2SC5200/A1943.

[kevin gilmore]

quote
2SC1815/A1015 can i change to BC546 or what ?

how about mps8099/mps8599




My guess, he took a cheap car amp, put it on a fixed power
supply, turned up the voltage and BOOM.

[Christer]

Originally posted by kevin gilmore
My guess, he took a cheap car amp, put it on a fixed power
supply, turned up the voltage and BOOM.

If you check out a previous thread you will see that he asked
if he could increase the voltage to his amp to get more power.
Several people said "don't do it", and he just went about doing
it any way. I would guess this thread is a result of that.

[peranders]

Originally posted by Dj BASS AMP
I have a goal !!!!! i have amp and some transistors was a explode !!! and in the company that i buy the new parts.....

OK, if you have a thread name "My amp blew up - need to replace some parts" then I (or we) will understand much faster