Jefs Tube Amp Blog

I love old tube amps. If you dig them as much as I do, this blog is for you. Guitar, Hi Fi, recording gear, nothing beats the warmth and character of this antiquated technology. Shared here are tips to keep your much loved old amps in good shape, and tips how to improve your new gear. Have a comment or suggestion? Leave it here! Thanks for reading!

Wednesday, December 20, 2023

1993 Vox AC30 Korg Reissue. Unbelievably terrible, simultaneously amazing. Hum and noise issues....

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  Here was a really tedious, un-fun job. Initially it was blowing one of the heater fuses. A mystery since my client said he changed the spe...
Saturday, April 9, 2022

1936 Gibson EH-150 and a story about parasitic oscillation and lead dress.

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  This one was fun. I came out of semi amp fixer retirement to tackle this beauty. It's a very early Gibson EH-150 built around 1936. My...
Monday, February 28, 2022

1970's Foxx Fuzz and Wah...... Acid trip waiting to happen!

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 This was a fun one. It arrived DOA. It needed the battery clip to be re-soldered which was easy enough but then the fuzz part was barely au...
Monday, February 21, 2022

My favorite flea power amp has been returned to me after theft. Thank you!

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 This is a good story with a happy ending. In June 2021 my favorite amp was stolen from my van in Brooklyn. I played Russian roulette with m...
2 comments:

DOD Stereo Chorus Vibrato 565-B pedal. 80's gem!

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 Ok.... another pedal. This one was fun. It belongs to a good friend and it's been with him since the 90's. It came sounding rather ...
Monday, February 7, 2022

1973 Mu-Tron Octave Divider, fun!

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 Got lucky with this one. I've been taking on some pedals at Southside Guitars. I kind of enjoy them.... it's nice when you can find...

1969 Park 75! Rare as hen's teeth yo!

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 This was a fun one. A very nice Park 75 from 1969. In my 32 years of doing this I've had the pleasure of working on exactly 3 Park amps...
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