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Old 26th January 2010, 12:00 AM   #1
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Join Date: Jan 2006
Location: Northern Virginia, USA
Default Sub for Hitachi 2SC1344

These are going into the preamp section of the HK430 receiver. I've attached datasheets for a few candidates, but first, what would be the most important characteristics for this application? Here is the data in a table format:

2SC1344 (E) 2N3390 BC550CG

Vcbo 30 25 45
Vce 30 25 50
Veb 5 5 5
Ic 100 100 100
Power Diss 200 625 625
hfe 400/800 400/800 420/800
small signal hfe 540 400 600
noise ?

The small signal hfe and noise figures are hard to compare because the measurements are not apples to apples, but I think the noise figures are low for all.

Is the 2N3390 "good enough"? Do I need to purchase a bunch of BC550
C because I'm likely to need them often in audio repair and their specs are decent? The 2N3390s are an amazing 4 cents each at newark, the BC550C are 13 cents!
Attached Files
File Type: pdf 2SC1344-E.pdf (47.0 KB, 10 views)
File Type: pdf BC550.pdf (59.1 KB, 6 views)
File Type: pdf 2N3390_2N3393.pdf (29.4 KB, 8 views)
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