2SJ170 + 2SK170 (BL)

Toshiba Super Matched Pair (2 ea)

J-FET Audio Transistors (N channel)

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These JFETs were matched at a constant 72 degrees using a meticulous lab process.

Most eBay FET resellers to NOT match simultaneously for BOTH Idss and Vgs.

In many cases, our matching is within BOTH 0.01mA and 1mV. 

JFETs are inserted into a custom 90-socket gold-pin ZIF test jig (30 devices per test).

A well-regulated and carefully monitored DC supply voltage of 9.00V (not 9.01V) is

applied while FETs are allowed to stabilize for at least 5 minutes before testing.

Current (Idss) and voltage (Vgs) are measured quickly on a calibrated Agilent 

34401 6-1/2 digit meter. FETs are bin matched to within 0.03mA Idss AND 4mV Vgs. 

FETs are placed into bags of matched pairs (range 6.00-9.00mA). 

Buyers will receive the tightest matching available, prioritized by Idss. 

Shipped in black static-shield bags surrounded by pink anti-static bubble-wrap.

Combined orders of $200 get 5% discount. Remind me.

First Class USPS with tracking $4.00 for ANY quantity ordered.

International First Class Air with tracking $18. Intl. Priority $44. 

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Brand New - From Original Boxes & U.S. Authorized Distributor (1996 - 2012)

TO-92 Package - Uncut - Unsoldered - Fully Tested 

Sale is for 2 pcs (2ea 2SK170, ultra-matched)

30-Day Returnable only if not as described, and must be uncut and unsoldered.