SKU: 13669300813

Sensor Transistor and Biasing Trimmer (Beogram 4002, 4004 and 4000)

Sale price$26.10 Regular price$29.00
Save 10%

Pay in installments of $7.25 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 16 - Aug 21

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Sensor Transistor and Biasing Trimmer (Beogram 4002, 4004 and 4000)Beolover Sensor Arm LED Light Source for Beogram 4002 4 and 4000: Replaces the sensor transistor and biasing resistor in any Beogram 4000, 4002 and 4004. Many original transistors lost some of their gain, which may disable the record detection function. As a consequence the arm may drop on an empty platter. Ouch!!! Replacement ensures that the record detectionj functionality works properly. Replacing the original fixed value biasing resistor with a

Beolover Sensor Arm LED Light Source for Beogram 4002/4 and 4000:

  • Replaces the sensor transistor and biasing resistor in any Beogram 4000, 4002 and 4004.
  • Many original transistors lost some of their gain, which may disable the record detection function. As a consequence the arm may drop on an empty platter. Ouch!!! Replacement ensures that the record detectionj functionality works properly.
  • Replacing the original fixed value biasing resistor with a 5MOhm trimmer allows adjusting the bias to meet the gain spec given in the manual (4V at collector)
  • Direct drop in replacement. Replaces 1TR3/R26 in DC motor Beogram 4002 (Type 551x/552x), 1TR9/1R33 in AC motor Beograms (Type 550x) and 1TR14/1R33 in Beogram 4000 models.
  • Comes with alignment fixture to position LED board in correct location.
  • See this Beolover blog post for an introduction to the restoration of the sensor arm and record detection circuit.
  • Installation requires soldering/desoldering capability, and potentially requires an oscilloscope for trouble shooting. Some experience with electronics is helpful.
Follow us on the Beolover Blog for updates and info about our B&O restoration efforts.
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 13669300813

    Discover Niche Categories That Outsell

    Top-Converting Item to Boost Your Average Order

    4.5 ★★★★★
    Based on 14 reviews
    Sort
    Highest Rating
    Newest First
    Oldest First
    Product Reviews
    F
    Verified Purchase
    frequentbuyer
    Houston, US
    ★★★★★ 4
    Stylish and affordable!
    Color: Grey, Size: 4 Pack, Color: Grey, Size: 4 Pack
    These shelves are rey stylish, light and durable! The set came with everything needed to install. The color is just as described. Price is steal and these shelves can definitely be used anywhere throughout the house. I did give it only 4 stars because as you can see in the photos, the underneath was not completely finished. Decided to keep because the price was unbeatable.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 5, 2026
    T
    Verified Purchase
    todd
    Massapequa, US
    ★★★★★ 5
    Great shelves
    Color: Mahogany, Size: 2 Pack
    Love these! Easy install and they look great. Very sturdy.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 14, 2026
    H
    Verified Purchase
    Hannah
    Pawtucket, US
    ★★★★★ 5
    Easy to Hang
    Color: Black, Size: 3 Pack
    This shelf is easy to hang, comes with great anchors and looks perfect. The quality looks nice and is was an easy hanging process compared to other shelves. Worth it for the price.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 18, 2026
    B
    Verified Purchase
    B from RI
    Whiting, US
    ★★★★★ 5
    One of the best deals available!
    Color: White, Size: 2 Pack
    Extremely sturdy, good looking and easy to install. I have a couple of dozen feet of assorted lengths in the kitchen, bedroom, living room and foyer. Holding all sorts of antique clocks, audio equipment and cooking stuff from my flours and assorted cornmeals to cases of powdered “lemonade”.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 18, 2026
    J
    Verified Purchase
    JJW
    Houston, US
    ★★★★★ 3
    Mounting system doesn’t align on one of three shelves.
    Color: Walnut, Size: 3 Pack
    Nice shelves. Install was super easy except on one of the three shelves. The main mounting shelf holes were off so the shelf will not slip onto horizontal mounting poles unless I modify the shelf. So a 20 minute job becomes a two hour job. The mounting system does appear very sturdy just not aligned.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 4, 2026

    recommand products