JE Labs

Travel back to the future or visit the JE Labs flea market. Thanks for visiting!

Monday, June 15, 2026

Measuring Output Transformer Primary Z with the FNIRSI LC1020E LCR Meter

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For years I had been measuring output transformer primary impedance using an arduous old-school procedure similar to  Uncle Doug's and...
2 comments:
Monday, June 1, 2026

Denon DL103 + TEAC TC15 aka Fidelity Research FR1 MkII + Wooden Headshells

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These two MC phono cartridges have gone through the skillful hands of Joseph Long , aka Groovetickler . Highlighting his fine craftsmanship ...
4 comments:
Thursday, May 14, 2026

Mono Hi-Fi Update: 6AH4GT + Altec 15095A line stage

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My plate-choke loaded/triode-connected 6C6 + paralleled 6SN7 K'follower line stage is a fine-sounding circuit. However, in the context ...
Saturday, April 25, 2026

Western Electric 124-style PP 6V6 mono amp

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!!!ADDENDUM!!! Another Western Electric-inspired push-pull amplifier.😊
2 comments:
Saturday, April 11, 2026

Altec 755C + Super Tweeters - Altec 3000H, Realistic 40-1375 and Peerless MT225

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L > R: Peerless MT225, Altec 3000H and Realistic 40-1375 Although I prefer listening to my  Altec 755As   neat like a double shot of fin...
6 comments:
Saturday, March 21, 2026

Western Electric 131A/133A Inspired Amp - Mono

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  While I was relishing a pair of Altec 32C horns  in the attic during the late aughts, unbeknownst to me, my stateside audio comrades, Dave...
2 comments:
Saturday, February 28, 2026

Stereo Sound Tube Kingdom - Finale!

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 This sad news flew under my radar.  😔 Autumn 2025 = Final issue!
2 comments:
Sunday, February 15, 2026

Bonsai SE Amps: 6BQ5 & 6V6 in Triode

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It's been an unusually bitter cold winter. Typically, I could build a chassis or do simple woodworking in the garage but the frigid temp...
2 comments:
Saturday, January 24, 2026

OJAS @ Cooper Hewitt NYC

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Last weekend, I visited Devon Turnbull's  HiFi Pursuit Listening Room Dream No. 3  at the Cooper Hewitt , which opened on December 12, 2...
6 comments:
Sunday, January 4, 2026

Welcome 2026!

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A few days before Christmas, I received greetings from two audio buddies, J-Rob and Gary B. , with the above caption taken from  Part 2 of ...
6 comments:
Saturday, December 20, 2025

🎄HAPPY HOLIDAYS + 2025 Redux!🎄

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  Not much has changed in the man cave since my last update . At any rate, here's a mini-tour to a tune celebrating the holiday season b...
Saturday, December 6, 2025

Ceramic Phono Cartridges: Sonotone 9TA + Sony VX-23P

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Last summer, I attended a gathering of audio DIYers and my friend Mark S . brought his neatly refurbished Rek O Kut B12GH with a 12" Je...
4 comments:
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retro tech + music
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