The Guitologist
Education • Music • Science & Tech
If you're a fan of my YouTube channel "The Guitologist" this is the place to reach me, support the channel, and just hang out with like-minded guitarists who love freedom and hate wussies.
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A few years back...

A few years back I saw a 412 cabinet at my local Music Go Round. It was built by a company I didn't recognize, but I did a little research and found out the cabinet was from the early 70s and, if the speakers were original, would contain 4x Celestion Green Backs. I borrowed a screw driver from the guy at the counter and opened the cab. Sure enough, there were 4x early 70s Celestion Green Backs. I traded them to a guy in Asia for a half ounce Canadian Gold Maple Leaf. I paid $100 for the cabinet. Today, gold hit a near all time high close to $3000/ounce. I sold that half ounce bullion round for $1500. THAT is how you score at the music store, my friends.

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What else you may like…
Videos
Posts
Modding a Hiwatt DR504

This is a video response to Tone Priest's question about modding a Hiwatt clone build. If you are a paid member here on Locals and have tech or other questions, I'll be happy to give you a similar video response when I get time! Thanks so much for all your continued support.

00:14:42
1931 Gibson L1 Extended Jam

This was the full jam session on the Gibson L1 I did recently. As you probably know, I usually will jam for a while on something and then pick a few highlights to show in a final video. A ton of stuff got edited out. It's not all great, but it's not all bad either. I find it kind of soothing, this quiet acoustic stuff. I'm never sure where the mood will take me.

00:36:32
10 Minute Crash Course in Open Tuning and Open D Licks

I made this quick video the other day for a friend and figured I'd post it here as well. He wants to get started in slide, so I was quickly showing him some open tuning concepts to make the transition to slide a bit easier. Kind of like learning slide without a slide.

00:11:02
Why Do Billy Gibbons, Brian May, and EVH Have Such Distinctive Tone?

This is probably the most overlooked aspect of your guitar tone hiding right under your nose.

February 12, 2026

What's going on here, fellas? On both these schematics the OT plates get B+ DC like normal through a bridge rectifier but check out how the screens and all the preamp tubes are getting juice. There appears to be a second tap off the secondary of the PT which goes through a choke, has a couple filter caps than straight in. How is this getting rectified???

https://el34world.com/charts/Schematics/files/Univox/Univox1061.pdf

https://el34world.com/charts/Schematics/files/Univox/Univox1086.pdf

New Amp Repair Video...Early Bird Link

Exclusive early bird link for my Locals peeps. Enjoy!

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