Toshiba JFETs BJTs Sanken BJTs - diyAudio
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Old 6th February 2004, 05:29 AM   #1
Praise! is offline Praise!  Australia
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Default Toshiba JFETs BJTs Sanken BJTs

Hi DIYers,

As part of my comapny's Market Research, I offer to sell the following transistors. All transistors below are factory-direct from original manufacturer ie Toshiba and Sanken. They are all complementary pairs.

n-channel AU$ US$ EUR$ & p-channel AU$ US$ EUR$ &
2SK246-BL 0.60 0.45 0.35 0.25 2SJ103-BL 0.70 0.55 0.45 0.30
2SK364-GR 1.25 0.95 0.75 0.50 2SJ104-GR 2.00 1.50 1.20 0.85
2SK364-BL 1.25 0.95 0.75 0.50 2SJ104-BL 2.00 1.50 1.20 0.85
2SK364-V 1.25 0.95 0.75 0.50 2SJ104-V 2.00 1.50 1.20 0.85
2SC3381-BL 5.50 4.20 3.35 2.30 2SA1349-BL 5.50 4.20 3.35 2.30
2SC5171 1.60 1.20 0.95 0.65 2SA1930 1.60 1.20 0.95 0.65
2SC5200-O 7.00 5.35 4.25 2.90 2SA1943-O 7.30 5.55 4.45 3.00
2SC2837-Y 16.40 12.50 9.95 6.80 2SA1186-Y 18.00 13.70 10.95 7.50

All payments by TT only. Australian customers add 10% GST. Shipping is by Australian Postal services (Government owned) All payments is in AU$ only. Different currenices are there for your reference only. Ask for a quote via email.

Technical comments:

The 246/103 complementary pair can be used to folded-cascode a transistor, be it BJT, MOSFET of JFET. They have symmetrical high breakdown voltage of 50V. Together with high Vgs(off) make them ideal for cascoding.

The 364/104 complementary pair can be used in a different number of ways: current source, main voltage amplifer and as a buffer. They have very high gm (higher than 170/74). You can use GR or BL grade for current source and V grade for buffering. You can also folded-cascode the GR / BL with 246/103 for higher impedance of current source.

The 3381/1349 is a complementary dual monolithic low noise BJT pair rated at 80V. They are no longer in production, hence the high price tag. You can use it for telescopic cascode to shield the high voltage from high gm/hfe transistors. Data sheets and matching on request.

The 5171/1930 is a complementary pair for driving the output stage. Rated at 2A.

The 5200/1943 is the up-dated version of 2SC3281/2SA1302 (MJL3281A/MJL1302A). They are not more linear.

The 2837/1186 complementary pair is a "damp fast" output stage BJTs with fT=70Mhz. These are I think the fastest Audio complementary BJTs on earth.

I can also match complementary devices or do a special selection at a higher cost. Send me a email for that. For Power BJTs, I can match the Hfe or Vbe. For JFETs, I can match to with 1% of their Idss. (elsewhere 10% at rediculus price). Special selection can be made as well. However, note the higher prices. Expect 50% more.

Have fun!
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Old 6th February 2004, 05:45 AM   #2
Praise! is offline Praise!  Australia
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Default Correction

[
The 5200/1943 is the up-dated version of 2SC3281/2SA1302 (MJL3281A/MJL1302A). They are not more linear.

Sorry guys, typing mistake:

I mean the 5200/1943 is more linear than the old 3281/1302.
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Old 6th February 2004, 05:50 AM   #3
Praise! is offline Praise!  Australia
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Default Price list

Sorry guys, the table is too hard to read.



n-channel AU$ US$ p-channel AU$ US$
2SK246-BL 0.60 0.45 2SJ103-BL 0.70 0.55
2SK364-GR 1.25 0.95 2SJ104-GR 2.00 1.50
2SK364-BL 1.25 0.95 2SJ104-BL 2.00 1.50
2SK364-V 1.25 0.95 2SJ104-V 2.00 1.50
2SC3381-BL 5.50 4.20 2SA1349-BL 5.50 4.20
2SC5171 1.60 1.20 2SA1930 1.60 1.20
2SC5200-O 7.00 5.35 2SA1943-O 7.30 5.55
2SC2837-Y 16.40 12.50 2SA1186-Y 18.00 13.70

All payments by TT only. Australian customers add 10% GST. Shipping is by Australian Postal services (Government owned) All payments is in AU$ only. Different currenices are there for your reference only. Ask for a quote via email.
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Old 6th February 2004, 05:54 AM   #4
Praise! is offline Praise!  Australia
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Default can't help it

So sorry guys, can't help it. it doesn't take my space bar!
So you just have to "follow the lines". Sorry!
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Old 6th February 2004, 06:10 AM   #5
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post on ebay bud
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Old 14th February 2004, 06:45 AM   #6
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Hi,

I sent a PM through diyAudio indicating interest in four pairs of matched 2sk246/2sj103 BL (>11mA Idss). Send e-mail (johnferrier@aol.com), if you didn't receive my message through diyAudio.

Thanks.


JF
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