JE Labs

Sample some of the articles at Enjoy the Music!  Contact Joe Roberts on eBay for Archive CDs

Type 77 pentode in the  Radiotron SE2A3 amp Plug-in compatible with the 6C6 

© 1934 All the tubes I am using in my Hi-Fi System were being manufactured by the time the RC-12 was published. RCA phono from RC...

A few updates to the Jensen Ultraflex Revised crossover + EQ/HF boost   The fixed resistor attenuator was inspired by the Jensen...

I've been feeling nostalgic lately especially after unearthing a box of prints and negatives which I've been scanning and uploa...

It's been many years since I listened to 2 cubic foot slanted front boxes loaded with 755s. The 755E was chosen because I have had ...

I have been a happy user since October 2013 ;)

The  Altec N1600C   series crossover  has been a significant constituent in the evolution of my  Altec 2-way  horn speaker system....

Truth be told, I was never fully satisfied with the performance of the Altec 2-way which is why I never uploaded the old article in the  A...

I  visited a friend the day after Christmas. On the way home the water pump started squealing badly ;( The radiator and fan had to ...

Check out JE Labs in the latest issue of Vault Magazine .

2013 Index February: i Phone pix March: 135 and 120 Film - Ultrafine Extreme 100 & Ultrafine Extreme 400  + Kodak Eastman Double X  (5...