Wednesday, October 7, 2026

Martin's Electric Guitars

1959 D-18E


Martin's venture into the world of electric guitars was quite unusual. Especially for the company that created the prototype and standard for the American acoustic guitar. However in 1959 the C.F. Martin company began applying magnetic pickups to a few of it's classic models. 




Though piezo technology had been known since the 1800's, it had not been applied to guitars until the late 1960's when the Prismatone Bridge pickup was offered on guitars made by The Harmony Company for Baldwin classical guitars. 




By the 1970's Ovation Guitars offered their under saddle piezo pickup. However back in 1959, guitar player had to rely on electro magnetic pickups or microphones to amplify their guitar sound. 







The Rowe DeArmond Company (now known as Rowe Indusrries) of Toledo, Ohio was one of the preeminent supplier of guitar pickups. The first acoustic electric Martin guitars came with DeArmond single coil pickups mounted on top of the instruments soundboard.





The original instruments were the D-18E, the D-28E and the 00-18E, and were traditional Martin acoustic guitars that came with added single coil electric pickups, wiring, a selector switch, and volume/tone controls on the instrument's lower bout.

D-28E wiring
The D-18E and the D-28E both bore two chrome sided pickups which were typical of the day with large polepieces on one side and smaller ones on the other. These were replete with twin volume and twin tone knobs and a three-way pickup control switch on the top upper bout.

The pickguard needed to be cut to maintain the pickup rings.

1959 O-18E

The 00-18E had only one similar DeArmond that was mounted at the bottom of the neck. There was a single volume and tone controls for this model.

All of these guitars had the same accoutrements as their acoustic cousins. All had a spruce top. The D-18E and the 00-18E had mahogany back and sides and the D-28E had rosewood back and sides. The D-28E had gold plated Grover Roto tuners.

In reviewing these guitars I am shocked to learn the current asking prices are between $25,000 and $50,000 for these vintage instruments.

1959 D-28E

Besides the pickups the biggest difference between the electric and acoustic models of this series was, due to the pickups mounting, the electrics were made with transverse bracing on the top. This changed the sound when the guitar was played acoustically. Subsequently they sound thinner than a typical X braced Martin.



Although Martin guitars did not become expensive until around 1973, electric guitar pickups that are screwed into a Martin acoustic guitar and holes drilled into the top along with ladder bracing in my opinion probably had somewhat of a diminished effect on the instruments acoustic sound.

The D-18E was discontinued within a year. The D-28E and the 00-18E were produced through 1964. 

However, in 1961 Martin introduced a line up of thinline electric guitars.


F-55 - F-65 - F-50 
So in 1961 prototypes of a Martin thinline guitar was being developed. These guitars were available for purchase as of 1962. They were designated models F-50, F-55 and F-65. 


The F series designation was a holdover from Martin's earlier archtop series of guitars built starting in 1935, The F-1, the F-5, F-7, and F-9. These describe Martin instruments with a 16 inch lower bout width, 4.125 inch. body depth, 20.125 inch. body length, and 24.9 inch. scale. Martin did build other archtop models, including the models R and model C archtops, which had different measurements.



The bodies on these electric guitars measured slightly less than 2” in thickness. The tops and backs were maple plywood with the tops being bound. All had a modern shape; less width on the top bout, while the lower bout was wider. The cutaways on these were different than any guitar of the day as they were wide and stood at almost a right angle from the neck and had a modified Florentine shape. The necks were glued into the instrument and processed a 20-fret rosewood fingerboard which joined the body at the 14th fret. The necks, and headstocks looked like they could have been the same ones used on a Martin acoustic guitar. They probably were.
These instruments had the typical Martin necks shaped with 3 plus 3 style tuners. Another unusual feature on this series was the use of a clear Plexiglas adjustable bridge. Like most archtops, the pickguard was elevated.






1962 F-50

The F-50 bore a single humbucking pickup at the bottom of the neck and a single volume and tone control on the lower bout.

The F-55 and F-65 included a neck and bridge DeArmond Humbucking pickups and a toggle switch mounted on the upper treble bout. They also had dual volume and tone controls.

The F-50 and F-55 models both had trapeze tail pieces with a large M cut into the base that was mounted above the guitar’s top. However a Bigsby vibrato unit was an option.

1964 F-65
The F-65 had a double cutaway and was offered with at trapeze tailpiece or a Bigsby made vibrato that had the Martin M in the base.

All of these guitars were produced from 1962 through 1965.

These guitars could be purchased with amplifiers which bore the Martin logo.




Martin 112T amplifier


These were designated Model 110 and 112T, possibly due to the speaker size and the fact they came with a tremolo circuit.



The Martin Model 110 was a small class A amplifier that produced 5 to 12 watts of power through a single 6V6 power tube. Controls included volume and tone. 



Martin 112T Amp

The Martin Model 112T was the larger amplifier. It had a 12" speaker and delivered 12 to 15 watts of power through a pair of 6V6 tube, and 3 12AX7 preamp tubes. One of these tubes probably powered the tremolo circuit.





DeArmond R15T
The Martin Model 110 and 112T were both manufactured by the DeArmond Company. In fact, DeArmond built this same amp calling it the DeArmond R15T but for the color of the covering and grill cloth these amps were virtually identical.


By late 1965 the Martin F series was discontinued due to lack of interest. However Martin stayed the course and created a new series of electrics dubbed the GT series that became available the following year.

GT-75
The two models were available this time, the GT-70 and GT-75. These were thinline guitars with two F-holes and a neck that joined the body at the 15th fret. The 22 fret rosewood fretboard was bound. The guitars inlays had dot position markers and the headstock was redesigned and bound. 

The big difference in these instruments was the neck and headstock shape. The neck was a bolt-on style, while the headstock now had a more modern shape. These guitars also sported truss rods. Martin acoustic guitars would not have this feature until 1985.
The GT-70 had a single cutaway on the lower bout. The upper bout had an inward curve into the neck. As with its predecessor, this model bore two DeArmond humbucking pickups. The neck joined the guitar at the 16th fret. The tailpiece was a Bigsby with a large V in its base. The bridges were now made of chrome and adjustable. The GT-75 was similarly equipped to the G-70; however there were twin cutaways on the upper bout.

GT-75 12 string


Martin also made 12 string versions of the GT-75 sans the Bigsby. These guitars bore the Martin M trapeze tailpiece. All models were available in black or burgundy finishes.  






Martin's foray into building inhouse electric guitars ended in 1968. However the Japanese company, Teisco Gen Gakki, began building "replicas" of the Martin GT series, which they sold under the Liberty logo. 






This occurred around the time that Kawai purchased Teisco. Former employees that were not included in the sale started the Teisco Gen Gakki company and built house-brand guitars and basses. Some of those house brands did not sell, and the manufacture needed to use up parts. One of these house brands was Liberty. These electric guitars were labeled as MT-280 or Martin Type 280. Compared to the Martin instruments, the quality was lacking.


Along with the new guitars, Martin offered a new amplifier designated the SS-140. In keeping up with popular amplifier designs of the era, this amp was the size of a refrigerator and is assumed to have 140 watts of power. As a kid, I recall lugging those big heavy amplifiers around. Thankfully some brilliant and unknown engineer discovered that amps could be “miked” and their sound could be run through the public address system eliminating the need to drag around amplifiers that weighed 200 pounds and up.


Around 1970 Martin followed the pack and outsourced a less expensive version of its acoustic guitar under the Sigma brand. By 1973 Martin added solidbody and hollow body electric guitars to its lineup under the Sigma and SS logo made by the Japanese company Tokai.

They were copies of well known electric guitar shapes with a self-styled headstock. Their sales were dismal and discontinued in the mid 1970’s.

Then in 1974 Martin went back to producing a domestic series of electric guitars designated the E series. The headstock was sort of a variation of the old Stauffer Martin design with the exception the tuners were 3 per side. These guitars were actually built at the Martin facility in Nazareth, Pennsylvania.

E-18  -  E-28
There were 3 versions of the guitar; the E-18, the EM-18 and the EB-18. All were double cutaway guitars with the lower treble bout offset from the upper treble bout. The horns were rounded off. The natural lacquered bodies were built to resemble the natural wood guitars of the day, using a laminate of maple and rosewood and mahogany giving not only a striped effect, but the appearance of a neck-through-body guitar, although the necks were glued into a pocket in the body.

Martin EM-18

Later models eliminated the mahogany. The Martin brand was stamped into the back of the body. The necks had 22 frets. A CFM script logo was decaled on the head. The tuners were Sperzels.


1979 Martin E-18

The E-18 and the EM-18 were similar guitars but for the pickups and electronics. The E-18 came with twin DiMarzio pickups and a toggle switch to put them in or out of phase. The neck pickup was a PAF style and the bridge pickup was a DiMarzio super distortion. Both had brass nuts and Leo Quan bridges.


The EM-18 had twin Mighty Mite pickups and a 3 way switch that could put the pickups in or out of phase and also split the coils.

1980 EB-18


The EB-18 was a bass guitar with an approximate 34” scale and Grover tuners. The guitar was produced with a variety of pickups.






1980 E-28

By 1980 Martin added a model designated the E-28. This was a fancier version of the E-18. The nut was made of Micarta. The fretboard was ebony instead of rosewood. The neck was extended to 24 frets giving it a two octave range.

Some of the later models had sunburst finishes. The headstock was overlaid with ebony. An active circuit was added.


An EB-28 bass was added to the line-up during this period with similar accoutrements. This had DiMarzio P-bass and J-bass pickups.

All models came with a molded plastic case. The entire line was gone by 1982.

Like the Little Engine that Could, Martin kept chugging along. And in their final attempt in the electric guitar market the turned to Korea. A line of guitars under the Stinger brand was produced. Much like the failed Sigma/SS series these were Asian copies of traditional US guitars. They additionally added a line of small amplifiers as well.


These products were geared to beginning guitar students and all had a low retail price. They were sold under the corporate name Martin Telemarketing. 



Martin Stinger

The Stinger series lasted until 1990 when Martin came to its senses and went back to what they do better than any other company - building high quality acoustic guitars.

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Thursday, September 24, 2026

The Giannini Craviola

 

Harrison with Rickenbacker
By 1970 I had played guitar for over six years. I’d seen George Harrison and Roger McGuinn both using Rickenbacker 12 string guitars and loved that sound. However, in that period those instruments were retailing for around $500. That was beyond anything I could scrape together at my part-time job only earning $1.50 an hour.  After all I was still in high school at the time.  



Even other electric 12 strings proved to be beyond my budget. I was also looking for something different. A unique guitar that I could be associated with playing. 




Ray Lammar’s Music in Cincinnati was one of the regular shops I frequented. Ray had just gotten in three new instruments called CraViolas. 




These guitars had what can be best described as a kidney bean shaped body and a slight hockey stick headstock. 







Lammar’s displayed a six-string steel string version, a six-string nylon string version, and a 12 string. I had my eyes set on the 12 string. I put a down payment for that instrument. This is my 1970 model Giannini CraViola 12 string guitar. 


I learned that these instruments were made in Sao Paulo Brazil by Giannini Guitars or Tranquillo Giannini Guitars. They are still the largest manufacturer of guitars in South America. This company still manufactures guitars and other plectrum instruments in their San Paulo factory. 

Back in 1890 a gifted woodworker named Tranquillo Giannini traveled from his native Italy to Brazil to explore its treasure of exotic woods. 


He was so impressed by the remarkable abundance, variety, and quality of timbers, some of which are unique to the region, that he never left. Settling in downtown Sao Paulo, he established a workshop primarily for making furniture, but as a hobby he built guitars for his friends in his spare time. 

Giannini Guitars
Giannini guitars were, and are still made by the Tranquilo Giannini S.A. factory, Carlos Weber 124, Sao Paolo, Brazil. They are generally known for being well-made instruments featuring very fancy Brazilian hardwood veneers, as well as for the strange-shaped asymmetrical CraViola models. 

Three versions of CraViolas were offered. Each had a strange asymmetrical shape. Featuring a pear shape, no waist on the bass side and sharp waist (and almost cutaway taper) on the treble. Sound holes on the original versions were D-shaped with fancy rosettes, with a pointed tortoise guard on the steel-stringed versions. These had slotheads with a Woody Woodpecker-like peak pointed upward. The bridges were similar to the mustache version on the Gibson Country Western. 

In 1970 the CRA6N Classic retailed for $150 had a yellow spruce top and full-grained Brazilian rosewood body, no inlays or pickguard. 






The CRA6S Steel String was $10 more at $160) was a similar steel-string, with pin bridge and diamond inlays. 




The CRA12S 12 String version had similar features and sold for $175. All instruments came with a soft-shell case.








The 12 string CraViola's model was designed for Paulinho Nogueira, the Toquinho's teacher, who played and composed with Tom Jobim and Vinícius de Moraes. These instruments were created in the late 1960's and early 1970's during a time when the harpsichord became prevalent in popular music. 


Viola Caipira
Its designer sought to build an instrument that would produce a sound that was a cross between a harpsichord and the viola caipira, a 10-string folk instrument, that is used in Spanish American music. The viola caipira has 5 courses of strings tuned in unison. Whereas the CraViola has 12 strings. The top two courses are tuned in unison and the bottom four courses are tuned in octaves. 

With this instrument, the builder felt that the player could add the harpsichord sound to popular Spanish music. To distinguish from the American 12 string guitar, he called it a CraViola. The Portuguese word "cravo" means harpsichord. It is derived from the Italian "clavaciembela" or English "clavichord" which was a smaller version of the harpsichord. The viola comes from the aforementioned South American instrument. 

By today's standards, the original versions would not be considered worthy since they were made of laminated wood. However, the back and sides laminate of the 1970's model was made of gorgeous Brazilian Rosewood, which is now an endangered species and no longer available.



CraViola - licensed
by Westbur
y

Giannini later offered several contemporary models of CraViola including a handmade 6 string. The shapes of the new models are slightly updated. Most of the sound holes no longer sport the D shape. The headstocks no longer have the pointed beak and are no longer the slothead design of classical guitars, but now have solid headstocks. Gone too is the mustache bridge. This was replaced with a more contemporary design. 



Electric CraViola
Most of the contemporary versions were built with solid wood, or at least solid sound boards. Many of the later models came with built in electronics. Giannini also built solidbody electric versions.

My Craviola 12 string has a very bright but subdued sound. Its neck is wide, but comfortable. The strings sit low enough to be a pleasure to play. 


Since it's inception, the CraViola has been marketed in the USA under the Giannini brand, but later licensed under the Westbury brand (Univox) and the Jay Turser brand (Davitt and Hanser/JAM Industries). 





There were only two players from back in the 70's era that favored the CraViola. They were as diverse on the music spectrum as can be. One was Jimmy Page and the other was Neil Levang of the Lawrence Welk Orchestra. 



Used CraViolas from Reverb
The CraViola is still mentioned on the Giannini website, however it is not mentioned in the current company catalogue. In 2000 Giannini began production of some of its instruments in China. 

If you are looking to own a CraViola they are plentiful on used websites such as Reverb.

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Monday, September 14, 2026

Lonnie Mack's Guitar and Amplifier on the Auction Block

 

Lonnie Mack with #7
Attention Joe Bonamassa, George Gruhn, Mike Reeder, Gary Dick and everyone else in the vintage guitar market. Lonnie Mack’s prize 1958 Flying V is going up on the auction block on September 26th of this year.



Holly with Her Dad
Sadly, Lonnie's daughter, Holly Mack, passed away July 28th, 2026. She was the keeper of Lonnie’s guitar, and equipment, including Number 7 and all things pertaining to her father. 


Number 7 was the name Lonnie gave to his original 1958 Gibson Flying V, serial number 007. Lonnie passed away in April of 2016.

Lonnie's #7 when it was new
The history of this guitar began when Lonnie MacIntosh purchased it from Hughes Music in Norwood, Ohio. 

As a young man, he hung out at this music store. The owner, Glenn Hughes thought this young player would be interested in owning this unusual arrow shaped guitar because of his native American heritage. He was correct.

Mr. Hughes made the 600 mile trip to Kalamazoo, Michigan and bought this guitar, an Explore bass, and some other instruments directly from the Gibson Factory. Lonnie immediately purchased the guitar. 

According to Holly Mack, another music store in Indiana (where Lonnie made his home) fashioned a bent stainless-steel bar to hold the Bigsby B7 Vibrato that became an integral part of his sound. The Flying Vee originally had a natural Korina wood finish. 

Lonnie would eventually paint the guitar's body and neck, using red automotive spray paint. He liked that color since it resembled the finish on Gibson's 335 series. 

Lonnie also owned a 1962 Magnatone 440 amplifier. 


This amplifier featured “True Vibrato”. At the time, most amplifiers had a tremolo circuit that produced an effect by having the sound rapidly turn on and off. But Magnatone developed an actual vibrato circuit that raised and lowered the pitch of a note. This created a unique organ-like tone, which is why Lonnie used this amplifier. 

Since the Magnatone amp only put out 18 watts of power, Lonnie’s friend, and drummer, Gene Lawson devised a step-down transformer for the Magnatone amp so Lonnie could run that into a 1960’s Fender Bandmaster that had 45 watts of power, so he could be heard in a band setting. 

In 1963 Lonnie Mack and other studio musicians were backing a session for a girl group called The Charmaines at King Recording studio in Cincinnati Ohio. These ladies were artists for Fraternity Records. 

Memphis
There was 20 minutes left of studio time on the session that Fraternity Records had purchased.. Lonnie and the session players used this time to record a version of the popular song "Memphis."  

Lonnie did not know the song's lyrics, as his keyboard player, Dumpy Rice, usually sang that song when the band played at clubs. So Lonnie improvised a guitar version of the song. Little did he realize this would become a #1 record by June of 1963. 


That record was receiving a lot of requests for air play on the radio, so Fraternity Records issued an LP of  Lonnie and his band playing guitar based songs. This was called The Wham of that Memphis Man. In addition to Memphis the album included Lonnie's next big song, Wham!. 


Lonnie and the band didn't pay much attention to the charts since they were a bar band, traveling from city to city to earn a living. A DJ had to tell Lonnie that he had a hit record.

Lonnie's guitar style has influenced countless guitar players. Yes, this LP from a small Cincinnati, Ohio influenced so many famous players from the US, and around the world,including Stevie Ray Vaughan, Jeff Beck, Eric Clapton, Keith Richards.

Lonnie Mack's Guitar & Amp
As of September 26, Heritage Auctions is offering Lonnie Mack's 1958 Gibson Flying V 'Number 7' Red Solid Body Electric Guitar, Serial # 176051 & Magnatone Custom 440 Amplifier. Starting bid is $300,000. 

The guitar was refinished in red by Gibson circa 1963. It has a well-documented neck repair, with two Korina wood dowels visible at the heel. 

Lonnie Mack's Flying V
The original string-through-body holes have been filled. Both original PAF humbucking pickups are present and functioning, with the bridge pickup measuring slightly weaker in output than the neck pickup. 

The bridge has been replaced with a post-1964 chrome patent number ABR-1. The installed tuners are correct reproduction Klusons. Included are the original Kluson tuners with shrunken buttons, along with an additional set of original gold single-line Kluson tuners in good condition. 


'62 Magnatone 440 amp

The 1962 Magnatone 440 amp is all original and is the other half of Lonnie's signature sound. Should be services and tested by a qualified technician. Included in the auction are the guitar's hard shell case, and cables, Lonnie's guitar strap, plus the road travel case.  


In a second auction, Lonnie's very own Gibson 1993 Lonnie Mack Signature Flying V Cherry Solid Body Electric Guitar, Serial #003. 

This guitar, offered in 1993 by Gibson, was a tribute to the original Lonnie Mack Signature Flying V solid body electric guitar, The Serial #003. The guitar features a Cherry finish. 

This example was  personally owned by Lonnie Mack and based on his original 1958 Gibson Flying V, known as "Number 7." Shows only a few minor scuffs from storage and handling. 




The guitar remains essentially unplayed in as-new/shop-worn condition. This second instrument was consigned alongside Mack's original 1958 Flying V that served as the basis for this signature model by the estate of Holly Mack. The original hard case included. Starting bid is $5,000. 


 
Ovation 1987-4
Finally Lonnie Mack's personal Ovation 1987-4 Collectors Series Natural Acoustic Guitar, Serial #230 of 1000. This fine example of an Ovation Adamas acoustic electric guitar has a natural finish with an AAA Sitka spruce top, a carved walnut bridge, burled walnut veneer peghead, and 24-karat gold tuning machines. 

It also features the "1987" abalone inlay at the 12th fret and Ovation's Adamas-style sound holes bordered by maple, mahogany, teak, and padauk veneers. Consigned alongside other guitars from the personal collection of Lonnie Mack. Shows a few minor dings and scuffs from use, with no significant damage. Owned and played by Lonnie Mack. Ovation hard case included. Starting bid for this instrument is $500.  

Bidding on all items starts on September 26, 2026 and concludes on October 15th, 2026.

Lonnie Mack Band in the 1960's

If you are interested please register at Heritage Auctions.

©UniqueGuitar Publications (text only) 2026
Click on the links beneath the pictures for sources
Please click on the advertisements to help support this page.  Thank you!