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Genuine NOS JFET FET K170 J74 K163 J44 K213 J76 K214 J77 and PCIe USB network clock PCBs

For sail. genuine components guaranteed, matched pairs are matched by a curve tracer. A lot of DIYers bought those componets from me years before.
2SK163 2SJ44 have better complementary characteristics than 2SK170 2SJ44.

NOS JFET FET
Genuine Toshiba matched 2SK170GR 2SJ74GR pair(one pcs 2SK170GR and one pcs 2SJ74GR), 10$ per pair.
Genuine Toshiba matched 2SK170BL(two pcs 2SK170BL) pair, 8$ per pair.
Genuine Toshiba matched 2SJ74V(two pcs 2SJ74V) pair, 10$ per pair.
Genuine Toshiba matched 2SK369V(two pcs 2SK369V) pair, 10$ per pair.
Genuine NEC matched 2SK163L 2SJ44L(one pcs 2SK163L and one pcs 2SJ44L) pair, 8$ per pair.
Genuine NEC matched 2SK163M 2SJ44M(one pcs 2SK163M and one pcs 2SJ44M) pair, 8$ per pair.
Genuine Renesas unmatched 2SK213 2SJ76(one pcs 2SK213 and one pcs 2SJ76) pair, 15$ per pair.
Genuine Hitachi unmatched 2SK214 2SJ77(one pcs 2SK214 and one pcs 2SJ77) pair, 15$ per pair.

PCBs, all SMD componets are populated(except OCXOs and through-hole components and connectors),
PCIe USB Card : PCIe 1x, one USB 2.0 output, embedded sc-cut ocxo, external 10MHz input, external DC input, LT3045 regulator, ASM3142 chip. 300$ per pcs
PCIe Network Card : PCIe 1x, one gigabit SFP output, embedded sc-cut ocxo, external DC input, LT3045 regulator, WGI210 chip, 300$ per pcs
10MHz clock board: one sine wave output, 4 square wave output, LT3045 regulator, 300$ per pcs
Gigabit Network switch: two SFP ports, four RJ45 ports. embedded sc-cut ocxo, external 10MHz input, LT3045 regulator, 300$ per pcs
USB isolator: ground isolated, full USB 2.0 480MHz, one USB input , one USB output, embedded sc-cut ocxo, external 10MHz input, LT3045 regulator, 300$ per pcs
USB DDC: one USB 2.0 input, [OUTPUT, Spdif(DSD128 PCM384 max), AES(DSD128 PCM384 max), IIS(DSD1024, PCM1536 max), WORD CLOCK] embedded sc-cut ocxo, external 10MHz input, LT3045 regulator, 300$ per pcs

It will take 7 to 10 work days to arrange test and shipment. Shipped by registered airmail with tracking number or DHL or Fedex or EMS or equivalent.

Import duties, taxes, Paypal fee and charges are not included in the item price or shipping cost.
 

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Last edited:
Due to 20 pictures limit for each post. I will attach more photos soon.
5% papal fee will be added.
50$ or less, will be shipped by registered airmail with tracking number, add shipment cost 6$.
51$ or more, will be shipped by DHL or Fedex or EMS or equivalent, add shipment cost 30$.
 
TOSHIBA 2SA1015 2SC1815 Y grade, 1$ per pair(1 pcs 2SA1015Y and 1 pcs 2SC1815Y), unmatched, on continuous paper tape.
Siliconix J310, 15$ per pcs, ultra low noise, ultra low phase noise.
Vishay BFQ67 ultra low noise RF transistor, 3000pcs per reel. 3000$ per reel.
 

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Hi, can you please tell me what does mean that NOS? I see that NOS on meny titles over the wrold, does it mean = not over sampling ?? I would understand that it is called a "rare specimen", but I can't understand why it caled "NOS", what does NOS mean?
 
And more pictures about 2SJ74 V grade and a 10MHz reference clock.

Providing outstanding product value at an extremely low price.
1Hz phase noise -110dBc guaranteed, with actual shipped devices likely exceeding this parameter.
4-channel 10MHz BNC square wave output. Basically compatible with various audio devices supporting 10MHz clock input, including but not limited to CD players, music servers or bridges, USB interfaces, DACs, network switches, computer motherboards, etc.
Parameters balanced with listening experience.
Import duties, taxes, and charges are not included in the item price or shipping cost.
Weight: Approximately 5KG including packaging.
Dimensions: 220*290*80mm.
Packaging: 430*300*200mm.
Voltage: 220V, 230V, 110V, 100V available.
Shipping methods: EMS, DHL, or equivalent.
 

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