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Yahoo Bid Home Appliances, Audio & Video, Camera Audio Equipment Amplifiers General Other
自作 オーディオ プリアンプ PGA2311 電子ボリュ-ム使用
        

  • Product Quantity
    : 1
  • Starting Bid
    :9,800円
  • Highest Bidder
    : タケチャン / Rating:337
  • Listing Date
    :2026年03月15日 14時20分
  • Bidding closes on
    :2026年03月22日 21時30分
  • Auction Number
    :m1223001262
  • Condition
    :Damaged and stained (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)
自作 オーディオ プリアンプ

PGA2311 電子ボリュ-ムを使用しました

回路はローテルRC-1570を参考にしました

電源回路はLM317等による可変電源でオペアンプに供給
PGA311には基板内臓電源を使用せず
オペアンプ電源からの出力を7805三端子に入れて使用しております
入力は3系統
出力は2系統でバランス出力がついております

コンデンサ-等はシルキ-、フイリップスなど一応選んで使用しております
電源トランスは音が良かったのでチュ-ナ-用を使用しております
オペアンプは5532を使用しておりますので好みで交換もできます
電源SWは大きなSWで廻りのリングがパイロットランプで青色です
それでは上の緑色の小さなパイロットランプですが
これはPGA311が立ち上がるのを見ております
数秒で点滅が終了するとOKです。
それとは別にボリュ-ムを廻すとチカチカしますが
動作確認しています
リヤ-パネルの入力ピン1,2,3が黒くなっておりますが
これは大陸製で出力ピンは日本製で、こんなに変わります


PGA311の電子ボリュ-ムの組立説明書と
ロ-テルRC-1570の回路図を入れておきます
フロント、リヤ-パネルの両面テープ付のシ-トを
2枚入れておきますのでレタリングにご利用ください



現在、ノイズ等もなく動作しております

梱包サイズは80センチになります






(2026年 3月 17日 21時 32分 追加)
電源コードはご自分で用意お願いします。

(2026年 3月 18日 20時 37分 追加)
個人出品のためインボイス発行は出来ませんので
Please log in before asking questions
Question list
All replies from original sellers (total number of questions: items)
After the seller responds, the original page will display the question
Product Price JPY
Japanese Consumption Tax(10%) JPY

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.

Japan Local Shipping Fee JPY Japan Local Shipping Fee Reference
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: 自作 オーディオ プリアンプ PGA2311 電子ボリュ-ム使用
    Notes:
    Customer service hours:
    • Monday to Friday 10:00-18:00
    Customer service hotline:
    Customer Service Email: service@letao.my