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Description
1T4 DF91 Sylvania NOS Platinum matched pair (rare square getter JAN WWII 1944)Brand: Sylvania Type: NOS Tube Country of Manufacture: United States Auction is for two (platinum matched pair) of rare Sylvania 1T4 DF91 old type battery type pentodes used in many tube amplifiers, preamplifiers and radio sets. They are in original JAN boxes and they are made in 1944, all same contract numbers and construction. It's rare square getter construction, 1st type.
Brand: Sylvania
Type: NOS Tube
Country of Manufacture: United States
Auction is for two (platinum matched pair) of rare Sylvania 1T4 DF91 old type battery type pentodes used in many tube amplifiers, preamplifiers and radio sets.
They are in original JAN boxes and they are made in 1944, all same contract numbers and construction. It's rare square getter construction, 1st type.
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4.8 ★★★★★
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Product Reviews
★★★★★ 5
Get The Clumps Out
Nice companion in the Espresso Yard. Watch for the guards, and shiv away at that fresh ground Espresso meat.
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Reviewed in the United States on January 8, 2026
★★★★★ 5
High quality
Fantastic! especially for the price! Cant be beat it. Does a wonderful job
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Reviewed in the United States on March 1, 2025
★★★★★ 4
Looks very nice
Sturdy and easy to use.
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Reviewed in the United States on December 21, 2024
★★★★★ 5
Wonderful tool
Wonderful tool and works great
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Reviewed in the United States on February 9, 2025
★★★★★ 5
Nice upgrade 51mm for me
Color: Silver
This is my second 51mm machine. I never used the included handle or basket… I kept my existing HUGH IMS precision basket and bottomless portafilter. The temp and preinfusion are set and not adjustable but fine (reduced variables). I defeated the shut off by volume by setting higher than needed (wish that was easier to turn off). I like to manually shut off when I hit 30g on my scale. The machine will drip since there is not solenoid valve so I just pull the scale from the try when mouse tail breaks and drip starts. The steam wand and hot water dispenser is a massive upgrade (from Capresso EC50) and the real reason for my upgrade. I would have paid $50-100 more for the improvements listed… but I guess most people would not so this is about the best option for me with 51mm (keeping all the 51mm three lug portafilter stuff I own). 5 stars = for me and the price
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Reviewed in the United States on April 18, 2026