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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13
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Description
Rare Matched QUAD PL504 NOS for Graaf GM100 GM200 OTL Amplifiers EI PhilipsPL504 EI Philips Platinum Matched quad Auction is for four tubes (matched quad) of rare PL504 EI Philips, the same codes, from the same batch (80 pcs styrofoam master packs). I had more then 500 pcs of these tubes, and all quads I have are carefully tested and matched by plate current on my Metrix U61 B tester. Due to big number of tested tubes, they are matched within 5% or less!!! Please order three quads for Graaf GM100 and you'll get 12 tubes
PL504 EI Philips Platinum Matched quad
Auction is for four tubes (matched quad) of rare PL504 EI Philips, the same codes, from the same batch (80 pcs styrofoam master packs).
I had more then 500 pcs of these tubes, and all quads I have are carefully tested and matched by plate current on my Metrix U61-B tester. Due to big number of tested tubes, they are matched within 5% or less!!!
Please order three quads for Graaf GM100 and you'll get 12 tubes matched within 5%.
For Graaf GM200, please order eight quads and you'll get 32 tubes matched within 5%.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.3 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 5
Muy practicas!
Size: 7-9.5, Color: Ma Gray
Muy confortables!
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Reviewed in the United States on December 24, 2025
★★★★★ 4
Nice overall!
Size: 10-13, Color: Brownish
Good overall slipper. Very comfortable!
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Reviewed in the United States on April 7, 2026
★★★★★ 5
Useage
They are very comfortable.
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Reviewed in the United States on October 7, 2024
★★★★★ 5
Warm
Bought for my husband,the fit is as expected,warm and comfy.
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Reviewed in the United States on November 30, 2022
★★★★★ 5
Warm and handy!
Size: 7-9.5, Color: Black Lattice
Bought these for my husband to wear while he races on his racing simulator. He likes that they are very warm while still being thin enough he can feel the pedals!
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Reviewed in the United States on January 16, 2023