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JDirectItems Auction Home Appliances, Audio & Video, Camera Electronic Components Transistors
2SK180ペア 2SET(4個)TOKIN SIT(V-FET) 3極管特性FET(新品選別品)
 
        

  • Quantity
    : 1
  • Starting Bid
    :8,000円
  • Highest Bidder
    : ken******** / Rating:242
  • Start Time
    :Jul 14, 2026 14:10
  • End Time
    :Jul 19, 2026 20:53
  • Auction ID
    :r1237048434
  • Item Condition
    :New product
  • Auto Extension
    :Yes
  • Authentication
    :No
  • Early Close
    :Yes
  • Return Accepted
    :no
  • Description
  • Q&A ()
  • Estimated Cost
  • Report an Issue
Notes
  1. The import of electronic parts requires relevant certificates, such as: IC, capacitors, transistors, power supplies... and other electronic related parts (such as motherboards, power transformers), and we cannot assist you in importing.
  2. The seller does not provide return compensation and other responsibilities
  3. ※Please confirm whether it is animal fur. Animal fur products are in conflict with the Washington Treaty and cannot be shipped internationally.
2SK180ペア 2SET(4個)TOKIN SIT(V-FET) 3極管特性FET
 未使用動作確認済み、放熱シート4枚付、絶縁ブッシュ、ラグ端子枚付
十数年前自作用として同一ロット購入し複数保管しておりました中から選別して2ペア出品いたします。

数年前テスト用としてハイエンドオーディオで評価の高いファーストWATのSIT-1を真似して8抵抗負荷によるOTLシングルA級アンプを1石X2STEREO作成しましたが2次歪主体の3極管に似た大変いい音出していました。ゲインが10程度ありましたので1石で十分実用になりました。ただし発熱がすごいため電圧を低くしため2W程度としました。また入力容量が大きいためプリアンプは必須と思います。当方のテストではプリアンプ使用で100KHz程度まで伸びていました。
今回はプッシュプル用として1ペアづつ特性の近い2ペア出品します。バイアスが真空管同様マイナス側ですので真空管と動作原理は同じですがヒーターがないため瞬時に立ち上がりますので突入電流対策でバイアス回路を先に立ち上げる必要があり自作しにくいですが製作に自信のあるある方の落札をお願いします。無バイアスでS-D間に電圧かけると大電流で破損の可能性ありますのでくれぐれもご注意ください。
【定格】
Gate-Drain 600V
DrainCurrent 20A
詳細はデータシート参照
動作原理は英語ですが下記参照ください。
https://www.youtube.com/watch?v=93ke5wM0gZ0
Static Induction Transistor(SIT) - YouTube


 出品に当たり選別、動作チェックを行い動作に問題ないことを確認しております。
選別、動作チェック時の電流を本体にマジックで書き込みをしておりますが動作には問題ありません。
同一ロットですがD-S間12V、S-G -2Vの電流値の近いもをペアとして選別しております。ペア1は0.66A、ペア2は0.65Aで低電圧領域は温度変化など刻校と変化しトランジスタほどではありませんがクリチカルな領域ですのであくまでも参考としてください。選別していますのでロットナンバー連番ではありません。(連番でもばらつきがかなり大きいため、また通電直後に電流が増え、温まると減るという挙動は、SIT(2SK180)で典型的に起こる“二段階の温度特性”ですので下2桁目はばらつく。)
選別時は放熱器がない状態のため小電流域としました。
静電気対策としてアルミホイルで包んで電極ショートしていますでアルミホイル取り外し後は静電破壊にご注意ください。

 御覧頂きましてありがとうございます。
必ず当オークションページを最後までご覧頂き、ご理解・ご納得頂いた上でご入札下さい。 ご入札頂いた時点でご納得頂いたとご判断させて頂きます。
出品後に追記することがございますので、一番下までお読みになってからご入札ください。ご入札を以って全文の内容に同意頂いたものと致します
悪い評価が多い方、評価が新規の方のご入札は、削除する場合がございます。


※ 注意事項 ※
★落札者様の評価についてはすみませんが落札者様の受け取り連絡後の出品者の評価いただいた後といたします。(先に当方が評価した場合、落札者様からの評価いただけなでそのままの場合が多いため)
★オークション終了後24時間(1日)以内の連絡と48時間(2日)以内の支払い手続きをお願い申し上げます。期限経過の場合は落札者都合キャンセルにて、自動で落札者評価が『非常に悪い』となりますのでご注意下さい。
★自動的にヤフーの方から悪い評価が付きますのでご了承下さい! 私からではなくヤフーの方からですのでご理解ください。
★以上、ご理解頂ける方のみ入札お願い致します。
★保管品の動作確認済みですですのでノークレーム・ノーリターンでお願いいたします。




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1. Issue of Authenticity: If antique or branded goods are found to be counterfeit upon receipt, clear photos showing the differences between the genuine product and the imitation must be provided as evidence. If unable to provide relevant proof, assistance can be sought to find a third-party reputable organization for a premium authentication service .
2. Leaking Iron Teapot: If an antique iron teapot is leaking, please take clear photos of the leaking area and provide them.
3. Transport Damage: If the goods are damaged during international shipping (to the pickup point), you need to provide photos of the outer packaging of the parcel and clear photos of the damaged goods' outer packaging.

※ Note: Photos provided to sellers should not contain any foreign-related information.
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    Product name: 2SK180ペア 2SET(4個)TOKIN SIT(V-FET) 3極管特性FET(新品選別品)
    Notes:
    Customer service hours:
    • Monday to Friday 10:00-18:00
    Customer service hotline:
    Customer Service Email: service@letao.my