Bigsby Part One – If you’ve ever got (or thought about getting) a tattoo, you can probably remember the heated debate that went on in your head. What should it be? Where should it go? How much do I want to pay? Will I even want to look at this 30 years from now? […]
Last month, we left off with a team in place to design, prototype, test, and market the new line of Magnatone amplifiers. This month we look at each series and model of the new Magnatone line and the features of each, including the world famous pitch-shifting vibrato circuit.
Magnatone was started in 1946 by Art Duhamell, who purchased the Dickerson Musical Instrument Manufacturing Company. Dickerson was a small, Southern California builder who produced lap steels and amplifiers. Dunhamell changed the name to Magnatone a division of his Magna Electronics Company in Los Angeles. Magna also produced record players, speakers, radios and organs as well as amplifiers under brands such as ToneMaster, DaVinci, Pac-Amp, and Estey. The Estey organ’s vibrato circuit was integral in the birth of the famous Magnatone pitch shifting vibrato feature,(but more on that later). Though Magnatone had a good run of building some of the first, high fidelity, innovative, “boutique” amps to hit the market, the company was plagued by mergers and buy outs, poor business decisions, and bad investments. In the end, Magnatone was no more by the end of the 1960’s.
A few months back I talked about how great the Univox U-45 is. And I figured I’d talk about more vintage Univoxs this month—specifically the 305-B which is a really great amp with 6973 output tubes. And I will (promise) do a column about that model Univox, but I stumbled onto this rare Guyatone this month and wanted to share this rare bird with the My Rare Guitars world. So, while I am stepping away from the Univox models, I’m still stuck in Japan in the 60’s with this Guyatone GA-530A.
The Hilgen “Victor” Model R2522. For the tube geeks among us, this starts with a 5AR4 rectifier before running into a couple of 12AX7s for preamp and reverb send duties. Then comes the only expensive and hard to find (although not impossible) tube—a 7199 for ‘verb recovery. From the factory, it came with a 12AU7 for phase inverter, which I switched out to a 12AY7 for a little more drive on the output tubes. I tried going up to a 12AX7, but that made for too much gain and resulted in a mushy, compromised output. The 12AY7 gives it more heat than stock, but still retains the crisp, tight, articulate character of the amp, as intended.
This twin twelve Alamo Futura Reverb is a true sleeper of a vintage amp classic. This is one of the greatest amps I’ve ever owned (or heard), and they are out there at still very reasonable prices on the vintage market.
Among the best deals out there are the Japanese-made Univox tube amps of the mid to late 60’s. There are some rare birds out there that are worth keeping an eye open for, but the one you see most often, among the low-priced, great sounding Univox tube amps, is the U-45B Model.
What’s strange is that it’s probably the column I have received the most mail on. People from all over the world wrote me about equipment they’d lost and the interesting ways they lost their stuff. They were all GREAT letters. Sad yet entertaining. We all had a story or two or twenty. It was like a gear geek AA meeting.
One of the true major players in oddball amps, the Silvertone 1484 guitar amp is pretty well known. It’s so well know, that it may not actually qualify as an oddball amp. But it’s still from the great Nat Daniel, the man behind the awesome kings of Masonite and lipstick pickups and wallpaper-as-Tolex’ the Danelectro company, who designed and produced some of the greatest oddball amplifiers ever done.
And this month, I sing the praises of another obscure and beautiful amplifier, in this case a 1966 Lectrolab S 400. I’ve seen a few Lectrolabs over the years and they are all pretty cool amps. The 400 series seem to be (and this is based only on observation and scattered information. No one seems to know very much about these) all single-ended small amps with a single EL84 for output and one or two eight inch speakers. The 600 series are more in the 15-20 watt range with either two 6V6’s or two EL84’s (driving a twelve inch speaker), depending on the year. And the 800 series, which I’ve never seen in person, I haven’t been able to find much about, other than that they seem like later versions of the 600’s. The 900 series are El84-equiped heads (very rare).
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