Everything Else

Electronics guru's, help

kshuff
Who joined Jan. 8, 2005, 8:13 p.m.
and authored 2385 notes

Wrote the following at Dec. 9, 2012, 4:29 p.m...

The left channel of my stereo receiver died and I traced the problem to one of the power transistors, problem is I cannot seem to cross it. The originals are NEC B703A and NEC D743A. I have found these are complimentary power transistors and can find a cross and source for the NEC B703A which crosses to a 2SB703A, but the one I need, the D743A I cannot find anywhere. I can cross it to a 2SD743A but the usual sources (Newark, Mouser, Allied, Jameco) never heard of it. Anyone know where I can get a suitable replacement?

_________________
-ks

:Onyx:

:Onyx:

:Onyx:

:Crimson:

:O2000:

:Fuel:

:Octane:

:Octane2:

:PI:

:Indigo:

:Indigo:

:O2:

:O2:

:Indigo2:

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See them all >here<

geo
Who joined July 21, 2009, 4:07 a.m.
and authored 465 notes

Wrote the following at Dec. 9, 2012, 5:22 p.m...

morning kshuff, i think such transistor still can be found somewhere here hmm what does it look like? maybe could ask my local friends to find it here.

btw, nice avatar ^^

_________________
:Octane:

:Octane:

(Sakura)

:O2:

(Sasuke)

:1600SW:

(Naruto) ... lil Jesse! (O2 laptop)
“Imagination is more important than knowledge.“ – A. Einstein

kshuff
Who joined Jan. 8, 2005, 8:13 p.m.
and authored 2385 notes

Wrote the following at Dec. 9, 2012, 8:42 p.m...

geo wrote:

morning kshuff, i think such transistor still can be found somewhere here hmm what does it look like? maybe could ask my local friends to find it here.

btw, nice avatar ^^

TO-220 package. Getting into the Christmas spirit

_________________
-ks

:Onyx:

:Onyx:

:Onyx:

:Crimson:

:O2000:

:Fuel:

:Octane:

:Octane2:

:PI:

:Indigo:

:Indigo:

:O2:

:O2:

:Indigo2:

:Indigo2:

:Indigo2IMP:

:Indigo2IMP:

:0300:

:Indy:

:Indy:

:320:

:540:

:1600SW:

:1600SW:

:hpserv:

See them all >here<

geo
Who joined July 21, 2009, 4:07 a.m.
and authored 465 notes

Wrote the following at Dec. 9, 2012, 10:18 p.m...

kshuff wrote:

TO-220 package. Getting into the Christmas spirit

ok it this it: http://item.taobao.com/item.htm?spm=a230r.1.10.1.iyU7fg&id=16225329521 ?

haha then my wish will be the Santa's themselves

_________________
:Octane:

:Octane:

(Sakura)

:O2:

(Sasuke)

:1600SW:

(Naruto) ... lil Jesse! (O2 laptop)
“Imagination is more important than knowledge.“ – A. Einstein

kshuff
Who joined Jan. 8, 2005, 8:13 p.m.
and authored 2385 notes

Wrote the following at Dec. 10, 2012, 1:30 p.m...

geo wrote:

kshuff wrote:

TO-220 package. Getting into the Christmas spirit

ok it this it: http://item.taobao.com/item.htm?spm=a230r.1.10.1.iyU7fg&id=16225329521 ?

haha then my wish will be the Santa's themselves

I don't know, I can't read chicken scratch

Package is correct. If the spec's are:

NPN

V CEO 100V

V CBO 100V

V EBO 5V

I C 4A

I CM 6A

I B 1A

Then yes I can use it.

_________________
-ks

:Onyx:

:Onyx:

:Onyx:

:Crimson:

:O2000:

:Fuel:

:Octane:

:Octane2:

:PI:

:Indigo:

:Indigo:

:O2:

:O2:

:Indigo2:

:Indigo2:

:Indigo2IMP:

:Indigo2IMP:

:0300:

:Indy:

:Indy:

:320:

:540:

:1600SW:

:1600SW:

:hpserv:

See them all >here<

GeneratriX
Who joined Oct. 21, 2003, 1:07 a.m.
and authored 4205 notes

Wrote the following at Dec. 12, 2012, 12:14 p.m...

Hello there.

There are probably some alternatives too:

kshuff wrote:

NEC B703A

2 SB 703 (A) = BD590, 2N6126, BD244C, BD544C

Source: "DOV Transistor 2"
Page: 2-207

kshuff wrote:

NEC D743A

2 SD 743 (A) = BD149, BD243C, BDY78, BDY71, 2N3054

Source: "DOV Transistor 2"
Page: 2-345

...and some of them are still around.
All the best!
Diego

_________________
Oh!, let me write that!

Octane / Dual Head

http://twitter.com/GeekTronixShop

kshuff
Who joined Jan. 8, 2005, 8:13 p.m.
and authored 2385 notes

Wrote the following at Dec. 12, 2012, 2:28 p.m...

GeneratriX wrote:

Hello there.

There are probably some alternatives too:

kshuff wrote:

NEC B703A

2 SB 703 (A) = BD590, 2N6126, BD244C, BD544C

Source: "DOV Transistor 2"
Page: 2-207

kshuff wrote:

NEC D743A

2 SD 743 (A) = BD149, BD243C, BDY78, BDY71, 2N3054

Source: "DOV Transistor 2"
Page: 2-345

...and some of them are still around.
All the best!
Diego

Thanks Diego, that's more than I came up with. Been out of the electronics loop for a while.

_________________
-ks

:Onyx:

:Onyx:

:Onyx:

:Crimson:

:O2000:

:Fuel:

:Octane:

:Octane2:

:PI:

:Indigo:

:Indigo:

:O2:

:O2:

:Indigo2:

:Indigo2:

:Indigo2IMP:

:Indigo2IMP:

:0300:

:Indy:

:Indy:

:320:

:540:

:1600SW:

:1600SW:

:hpserv:

See them all >here<

GeneratriX
Who joined Oct. 21, 2003, 1:07 a.m.
and authored 4205 notes

Wrote the following at Dec. 12, 2012, 2:55 p.m...

kshuff wrote:

Thanks Diego, that's more than I came up with.

You're welcome!

kshuff wrote:

Been out of the electronics loop for a while.

No problem; just recall to add me to Santa's list for the couple of your avatar!

Greetings!
Diego

_________________
Oh!, let me write that!

Octane / Dual Head

http://twitter.com/GeekTronixShop