Need more headroom or gain? Spin the bottles.
[Originally published: 9/2/2019]
You might guess from the title of this column that I love Fender amps. And youād be right. From a musical and engineering perspective, I think vintage Fender blackface amps are the best ever made. With bright, American-style speakers, they deliver pure and natural tone. Their channels, with volume and EQ, are intuitive for any guitar, bass, or keyboard player. Itās impossible to not find a decent tone in less than 10 seconds. From a technical perspective, their handmade tube-based circuits are simple, and they were built with high-quality components. And today, there are easily available parts and schematics, and an abundance of other online technical information, which makes it possible for many techs and playersāincluding youāto service these amps.
Classic Fender blackface amps have been an inspiration for an entire industry. Theyāve appeared on countless stages and an incredible amount of great albums by legendary performers. Why? Mostly tone and clean headroom. So, for this debut column, letās discuss what we can do to make those two factors work best for you via tubes.
Reverb and tremolo were the main functional innovations in Fenderās blackface line. The king of blackface amps, the Twin Reverb, produced 85 watts from four 6L6 tubes and had enormous power and output transformers, a non-sagging diode rectifier, and two powerful 12" speakers. The 4x10 dual-6L6 40-watt Super Reverb has half that power, a softer tube rectifier, and smaller transformers. Still, the massive array of four 10" speakers is screamingly loud and sometimes difficult to handle for its weight (65 pounds), size, and volume. A 4x10 is more directional and scooped in the low mids than a 2x12. So a guitar plugged into a Super Reverb can end up competing with the bass. Experience is required to tame these amps. Once you know how to handle them, you will be rewarded with an overwhelming and physical sonic experience.
In the blackface world, the 1x12, double-6V6 22-watt Deluxe Reverbās advantage is that itās small and light, at 42 pounds. It breaks up earlier than its bigger relatives due to the less powerful 6V6s, small transformers, and a small speaker cabinet. Additionally, the original Oxford 12K6-5 speaker farts out early and is very weak, although it also delivers a true signature vintage Fender sound. And who doesnāt want their amp to break up easily these days? I have kept the Oxfords in my Deluxe amps. Before the internet, few people knew they could replace the 6V6s with 6L6s and replace the Oxford to double the Deluxeās volume.
The V6 12AT7 phase inverter tube can be replaced with a 12AX7 to reduce headroom in large 6L6 amps.
Via my website, fenderguru.com, I often get questions about how to achieve different tones in blackface amps run at lower volumes. The answer often lies in the tubes. So let me share some simple tube tricks that will help you develop an understanding of how tubes functionāand how they can be used to affect changesāin the typical two-channel AB763 circuit in the Twin, Super Reverb, Vibroverb, Pro, Vibrolux, and Deluxe amps of the original blackface era.
The tubes in these circuits are typically identified as V1 through V10, looking at the back of the amp from right to left. Here are some tricks:
- The V1 12AX7 tube in an ampās normal channel can be removed for more preamp gain and reduced headroom in the vibrato channel. It can also be replaced by weaker tubes, like 12AY7s or 5751s, for less volume/gain. I always pull out this V1 since I use the vibrato channel and want solid preamp gain, which the single V2 delivers.
- The V3 12AT7 reverb driver for the vibrato channel can be replaced with a 12AU7 for less reverb and improved reverb knob control.
- If youāre only using the normal channel, think about removing the V2 through V5 tubes for the vibrato channel. That will give you more gain and headroom in the normal channel. (FYI, the 12AX7 in the V5 position is the tremolo tube.)
- The V6 12AT7 phase inverter tube can be replaced with a 12AX7 to reduce headroom in large 6L6 amps.
- Several alternatives to 6L6 power tubes exist. I mostly use 6L6GCs. In a Twin Reverb, you can pull either the V7 and V10 or V8 and V9 tubes for half power and earlier breakup. Ideally, but not totally necessary, you should disengage one speaker to match the impedance change.
- In a blackface Deluxe, the GZ34 in the V9 slot is the rectifier tube. If I want reduced headroom and more sag, I use a 5U4GB.
And there you have it: Youāre on your way to becoming a Fender guru, too!
The Vox V241 Bulldog is (almost) a dead ringer for a Mosrite, but plugging in reveals a mellower sound that is less Ventures and more ā¦ Pinky Perky and the Beakles?
I mention this all the time, but I have a real fascination with old music catalogs and print media. The other day, as I was perusing all my catalogs and magazines, I came across my grungy Vox catalog from 1966. The Beatles were on the cover! On page 6, the print reads: "Vox: It's what's happening to the world's top beat groups." The text goes on to list some rather interesting band names that must have been using Vox gear.
There are some big hitters like the Beatles, the Animals, the Hollies, the Zombies, and the Kinks. But then there are some pretty obscure bands that I'd never heard of. Like, have you ever heard of Pinky Perky and the Beakles? Or how about Millie and the Embers? The Anzaks? The Black Sheep? The Palace Guard? The Guillotines? Naming some of these bands would make for a great drinking game.
Also, there on page 6 was one of my favorite old Vox guitars: the V241 Bulldog! The Bulldog was a straight-ahead rock 'n' roll offering from a time when Vox axes were mostly odd-shaped (think Phantom or Mark VI teardrop) and outfitted with increasingly complex controls and electronics. The Bulldog simply had three pickups, a 3-way switch, a single volume knob, and two tone controls. When you compare the Bulldog to the '66 Vox V251 Guitar Organāwhich had more knobs and switches than a NASA control panelāit's truly a lesson in economy.
Borrowing heavily from the Mosrite Ventures guitar, the Bulldog sports a similar carved top, a side jack, a zero fret, a large aluminum nut, and a vibrato that feels like a combination of a Mosrite and a Bigsby. There are all sorts of chrome accents, and, typical for the time, the Bulldog came equipped with a bridge mute, which you can press down on the strings in lieu of palm muting. Sunburst was the only finish option. The fretboard is a lovely ebony slab with tiny fret dots, and the neckāwhich doesn't feel exactly like a Mosriteāplays fast. I also really dig the headstock, which is like an offset V that blends well with the large Vox logo.
You know how it feels when you hold a guitar and you know that it's a real, robust, reliable instrument? That's how the Bulldog feels.
The biggest difference between the Bulldog and the Ventures model is its sound. The old Mosrite guitars had some rather aggressive pickups and the Bulldog pickups are a bit sedate in comparison. I think that's why I eventually sold mine. For me, it was kind of limited in the tone department. But still, it has a place in semi-clean surf music.
The Vox Bulldogs were built in Italy by the Eko Company. In a way, these guitars were almost "overbuilt," because they used high quality woods and components, like a truss rod with their "Double-T" channel design that is rugged and works well. You know how it feels when you hold a guitar and it's a real, robust, reliable instrument? That's how the Bulldog feels.
I suppose Vox guitars were never really that popular in the U.S., which may have been due more to the price than the sound. At $399, the Bulldog was one of the most expensive guitars in the Vox catalog! In 1966, a Fender Stratocaster went for around $300, and a Telecaster was closer to $200. But guess what? The Mosrite Ventures model cost $398! The original Mosrite was a dollar cheaper than the Vox copy. Crazy, huh?
The Vox Bulldog faded from the lineup shortly after its initial release. In subsequent years, it sort of morphed into the V262 Invader, which retained the Mosrite shape but became much more complex, with features like a built-in tuner and effects such as boosters, percussion, and wah. That Mosrite, I could argue, was one of the most influential electric guitar designs ever. It inspired guitar builders from all over the world, and the amount of Mosrite copies made back in the day was really something. But rather than argue, I'm going to research some of the old bands in the Vox catalog. I wonder where Millie and the Embers are now.ā¦
The Firstman Liverpool Deluxe looks extreme, but would you believe it once appeared on The Ed Sullivan Show?
I've had this month's story on my shelf for quite some time, because I could really weave so many interesting threads and connections to this guitar. How does one honor a tremendous man with huge contributions to music when limited to a single page? But I'm feeling like it's time to tell at least part of the story behind one of the most interesting people I've ever met through my love of guitars.
Back around 2010, I began researching Japanese guitars in earnest, simply because I was discovering that there was too much speculation, misinformation, and plain-old ignorance floating around, and I found the fire to uncover the truth burning inside me. I started by reaching out to some Japanese internet connections via email, with the hope that we could communicate and that I'd make more contacts.
This Firstman Liverpool Deluxe may look like a battle axe, but it's chock full of warm, surfy clean tones.
Eventually, I found my way to a blog that was operated by a fellow named Kazy. He wrote in Japanese and English, and much of the content related to Mosrite guitars and his connections to Semie Mosely and Nokie Edwards. It turned out that Kazy was the nickname of Kazuo Morioka, and he became one of the most amazing sources I've ever encountered.
The guy was an excellent pianist, and was an early player of electrified pianos and organs. He shunned a cushy job with his family-owned pharmaceutical business to work for Kawai as a demo player, and went on to own a chain of music stores across Japan. He worked with all the early Japanese guitar companies and seemed to know all their employees and histories. After talking with Kazy, I developed a notebook full of numbers, emails, and connections all over Japan.
Mihara preferred a clean but strong sound, so that's what you'll find with one of these old Liverpool guitars.
Kazy spoke perfect English and had even lived in the U.S., near Seattle, for many years. He was friends with Semie Mosely, and together they produced a line of guitars in Japan that were called Mosrite Avengers. Kazy was also great friends with Nokie Edwards, who I missed meeting in person by one day while we were both visiting Kazy in Japan.
This month, I'll highlight one of Kazy's most extreme guitar designs. Kazy started electric guitar production in the late '60s using the brand name Firstman. He had the stellar idea to connect with popular Japanese bands and make custom guitars that would give them a signature look onstage. I suppose it was similar to groups wearing matching outfits in that era.
This Firstman Liverpool was the first, made in collaboration with Tsunaki Mihara of the Blue Comets. In the late '60s, the band had a huge hit called "Blue Chateau." They even played on The Ed Sullivan Show! Kazy and Mihara collaborated over every detail and put all kinds of considerations into the pickup frequency, attack and decay, coil winds, etc. Even the violin body shape was chosen because of its inherent resonance and projection, but, of course, with a more extreme Japanese design aesthetic. The deep, lightweight hollowbody is a rather large 15" across the lower bout, and came with some resplendent details, such as full-body binding and chrome accents. Plus, there was a totally posh scroll headstock.
Columnist Frank Meyers interviews Firstman founder and guitar designer Kazuo Morioka.
Mihara preferred a clean but strong sound, so that's what you'll find with one of these old Liverpool guitars. This guitar projects like a vintage Gibson hollowbody and has simple tone/volume knobs and a 3-way switch. I suppose these shapely black beauties present a menacing first impression, but they have a sweet sound that matches well with surf music and instrumentals.
Two Liverpool guitars were produced as prototypes, and a lot of handiwork went into them. According to Kazy, everything was carved and shaped by hand, from the arched tops and backs to the necks to the scroll headstocks. Kazy and Mihara received these guitars, and then, after the Blue Comets would play shows, there would be orders placed to make regular factory production runs.
A few variations on this guitar were produced, including a Liverpool Junior and a Liverpool Special, and they all came in black. Alas, Firstman guitar production didn't last long, ceasing in 1970. Once again, we're left with these interesting examples of ingenuity and effort, like time capsules waiting to be discovered again by future generations.