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Yahoo Bid Home Appliances, Audio & Video, Camera Audio Equipment Amplifiers Tube Amplifiers Main Units
LUXKIT  A3500  渾身のリメイク!!
        

リメイク後

リメイク前

100V入力とSP端子改善

出力は4Ωと8Ω

JJの6L6GC

EHの6AQ8

  • Product Quantity
    : 1
  • Starting Bid
    :1,000円
  • Highest Bidder
    : 正木 利時 / Rating:339
  • Listing Date
    :2026年01月31日 17時12分
  • Bidding closes on
    :2026年02月05日 19時58分
  • Auction Number
    :l1217957670
  • Condition
    :Junk (specify in description)
  • Automatic Extension
    :Yes
  • Authentication
    :No
  • Early Closing
    :Yes
  • Can I return the product?
    :no
  • Description
  • Q&A ()
  • Cost Estimator
  • Problem Item Response Procedur
Notes
  1. Plug-in electrical appliances are only shipped by air (shipping by sea requires commodity inspection)
このオークションで入手したA3500(完動品)ですが裏ブタを開けると蜘蛛の巣配線が気になり我慢できずリメイクしました。

この頃のメーカー品はどれも出力管が可哀そうな位「目一杯の動作」をさせて最大出力を稼いでいますが(真空管は消耗品と割り切っていた?)自作マニアとしては家庭で40Wも全く必要ない!と思うので、寿命と安定度、安全性(トランスの断線)を考慮して固定バイアスから自己バイアスに変更しました。

余談ですが
LUXのOY15シリーズはよく断線トランスと言われていましたが「目一杯動作+固定バイアスのプアーな部品により過電流⇒過電流に強くないOY15が断線」が原因と私は思っています(よく耳にしたのは断線トランスからピッチが流れ出ていた話)。

リメイクの内容
付属の真空管はちょっと疲れているみたいだったので出力管は好みでJJの6L6GCに、ドライバーもEHの6AQ8(それぞれ手持ちの新品)に交換、そして気になる配線は全てテフロンワイヤーに変更し引き回しも改善したつもりです。その他としてはAC100V入力系とSP出力端子も改善、カップリングCはオレンジドロップに、回路は3極管接続も試しましたがUL接続の方が元気が良い様に思えてこれは変更なしです。

で、完成まで2~3ケ月、リメイク後の音ですが同機種を持つ友人は以前より音が前に出て音離れが良くなったとの事・・・・・・ですが、正直私の耳では良く分かりません、元々このアンプは力強く大変リアルな再生音でしたので・・・・・

裏返しで使う事はないのですが配線がスッキリしたので気分が良くなり大満足!と言うところで約1年の使用で機材整理の為出品します、それでは宜しくお願いします。





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A 10% consumption tax is applied to goods and services in Japan. The price may include the tax or it may be added separately. Please check the price details when ordering.

Note: This is a domestic sales tax applied within Japan.

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Product Weight KG The maximum weight limit is 30 kg
International Shipping Methods
Proxy bidding and purchasing services are becoming increasingly convenient. However, overseas shopping carries certain risks and issues. To reduce these risks and enhance shopping safety, please be sure to read the following information:

1. International Shipping

   Air Freight: If the item status is not confirmed within two days after the arrival notice, any customer complaints cannot be addressed with the seller.

2. After Receiving the Product

Please confirm and inspect the product as soon as possible to ensure that the product specifications, quantity, accessories, and description are correct

If, unfortunately, there are any issues, you can refer to the following examples on how to report related product problems:
1. Example of missing product information
2. Example of product not matching provided information
3. Example of damaged product information

Important Notes: 1. If the seller is unwilling to ship overseas or is unaware that the product will be shipped overseas, the international shipping cost for returns or exchanges will need to be borne by the member. You may refer to the EMS e-Express fee inquiry from the post office. If it involves alcoholic beverages or items that affect flight safety, the post office cannot be used for shipment, and only DHL can be used to ship back to Japan.
2. During the product complaint handling period, please retain the complete outer packaging of the product (including the shipping label information), and refrain from attempting any repairs or altering the original condition. Any modifications may result in the inability to process the case.

3. After Inspecting the Product

After receiving and inspecting the item, if you have any questions, it is recommended to contact Letao within 2 hours. Here are some reminders:

1. Please do not unpack, use or repair the received item yourself, and be sure to keep the original packaging to facilitate subsequent handling of related matters, so as to avoid changes to the item that may cause the seller to be unwilling to process.

2. You can call customer service, and the customer service will leave a message for you as below. Please provide the following information:
"Hello, we will first help you establish a complaint case for Product ID: _______ .But we need you to 2-3 clear photos of the product issue, including photos of the product problem, product packaging, shipping details slip, and outer box. Send them to service@letao.my and inform us of your desired resolution (failing to provide this may result in an inability to process subsequent matters). After sending the email, notify us in the customer service message. We will confirm with the seller as soon as possible. and if there are any related questions, we will contact you through the customer service message. Thank you for your cooperation."

Please provide:
1. "Product ID"
2. Photo of the "Delivery Note" (if any)
3. Photos of the outer box (including inner and outer packaging)
4. Photos of the product (Please include relevant descriptions to help us confirm with the seller)

Important Notes:
1. Do not include foreign text or other products in the background of the image.
2. Please keep the complete product packaging (including the shipping label information), and refrain from repairing or altering the original condition on your own, as any changes may result in the case being unable to be processed.
3. Please provide the relevant information within 48 hours to avoid missing the golden hour for reflection and causing situations that cannot be handled.
4. Due to 99% of Japanese sellers being unwilling or unaware of shipping goods overseas, if a seller is willing to handle the issue, the goods must be sent back to Japan, and the international shipping costs incurred must be borne by the member. Letao will use postal EMS international express to send the goods back to Japan.
5. As the goods are purchased from overseas, it may take approximately one to two weeks to complete the relevant processing procedures when issues arise with the goods. Please be reminded that you can inquire about the approximate cost through the EMS service at the post office.

4. FAQ

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: LUXKIT  A3500  渾身のリメイク!!
    Notes:
    Customer service hours:
    • Monday to Friday 10:00-18:00
    Customer service hotline:
    Customer Service Email: service@letao.my