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R-Ri |
RM- |
info
updated 1/12/2011 |
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RMI |
see Rocky
Mountain Instrument Company |
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Road
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Road amplifiers were made by Bud Ross
of Kustom Amps, in Fort Scott, Kansas and, later bought out by Griffin Music.
[Source:
Sunn
Discussion Page ]
According to the example found
here on eBay Griffin Music Inc, was located Los Angeles
California.
Images eBay: Ad on left from 1975.
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Rock
click to enlarge
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Rock Amps, Rock Amplifier Company,
Pomona California USA. Solid state amps. 1960s and early 1970s
Reviews are at Harmony Central
Images eBay:
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Rocket
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Brand of ADA
Amplification, California.
Rocket A20R Instructions, Advertisement
Rocket
A20R amp Guitar Player Magazine Review 1997
[Source:
Andy, email 26/2/2011 ]
Reviews are at Harmony Central
Images
Rocket A20R Combo eBay:
see ADA |
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Rockhouse |
Rockhouse amps made by Kanda
Shokai.
Images Rockhouse amp Yahoo
auction:
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Rockit |
Rockit amps are made in Auckland, New Zealand by Clef
Industries
Models inlcude Pro Champ, Superlead 130
Dating Rockit amps
At least one example at Harmony Central has a date (1981)
recorded on a test label inside the case.
Reviews are at Harmony Central
Images Rockit Super Lead 130
amp ebay.
The Rockit Superlead 130 Pro Amp
Series Mark V was built in NZ during the late-70s/early-80s.
130 Watts (switchable to 75W) through a 15” 8-ohm JBL E-130.
6L6 valves in the power stage, and 12AX7s in the preamp. Single
input, switchable between clean, or sustain with Brite, Boost,
Sust and Fat selections. Speaker impedance switchable between
8- and 4-ohm. Additional Poweramp input and Preamp output.
Also has spring Reverb
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Rockman |
Rockman amplifiers by Tom Scholz, member
of the band Boston.
http://en.wikipedia.org/wiki/Rockman_(music)
http://www.rockmancentral.com/RockmanCentral/Start.html
Rockman ads
http://www.grailtone.com/rockman-ads.html
Reviews are at Harmony Central
Image eBay:
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RocknRoll |
Rock n Roll Amps, lead by
guitarist Jack Kivolowitz with 40 years experience, is committed
to providing high quality affordable amplifiers that let your
guitar or bass sing the way you know it can. Every Rock n Roll
Amps product is made by hand with point-to-point wiring and is
individually tested, tweaked and refined.
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Rockola |
Rockola
Schematic |
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Rocktron
 |
"Rocktron started selling gear in
1984. You can not track the year made from the serial numbers.
There really is no way to tell for sure. Gear has been made all
around the world while your specific unit will say what country
it was made in. " [Source: Jim, Rocktron email 7/4/2008]
Image eBay:
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Rocky Mountain Instrument Company
RMI |
During the 1970s the
Allen Organ
company owned Rocky Mountain Instruments or RMI, makers of the
RMI Harmonic Synth, Keyboard Computer, Electra Piano and others.
[Source:
Organ
Forum] They also made a guitar amplifier the RMI 140.
History of Rocky Mountain
Instruments
Image RMI-140, 100 Watt guitar amp
Bidcorral:
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Rocky Top Electronics |
Rocky Top Electronics, amps made
by Jesse James. A small company in Sevierville, east Tennessee -
In the Heart of the Smokies. We build a proline of guitar amps
and studio gear reproductions. You won't find any solid state or
printed circuit boards in our products. They are built with
specs from the 1960's and 70's, except with a few updates for
safety.
Wayback Machine 2006 |
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Rogue |
Reviews
http://reviews.harmony-central.com/reviews/Guitar+Amp/brand/Rogue |
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Rokaxe |
Reviews
http://reviews.harmony-central.com/reviews/Guitar+Amp/brand/Rokaxe |
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Rola |
Rola speakers Made in Australia,
Cleveland Ohio, elsewhere?
They bought Celestion
Rola Australia technical bulletin # 24
with full specs for Australian made Rola speakers and output
transformers used in Australia radios, TVs, guitar amps and
speaker systems
Image May 1939 Rola speaker inside
a VoluTone amp ebay:
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Roland
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Founded by Kakehashi Ikutaro in
Japan 1972. His previous company was Ace Electronic
Industries.
Roland timeline
Amps
Amps were made in USA in 1980s and
again in 1990s. "Roland produced 1000's of JC120's in La
Mirada Ca at the Roland Audio Development Corp in the mid 90's.
I ran the factory as Director of Operations. Chassis were
fabricated in Taiwan, cabinets built locally and speakers
provided by Eminence Corp USA." [Source: eBay]
Roland equipment spec digest
Roland amplifier catalogs
1984
http://lngngo1001.ifdef.jp/index.html
2007
Roland Amplifier Catalog
2008 Roland - Boss
Product catalog volume 1
Roland owners manuals
http://www.roland.com/support/en/
Roland
amplifier schematics
http://www.blueguitar.org/schems.htm
http://www.schematicheaven.com/post70s.htm
Effects
1983 Roland guitar synthesizer
catalog
http://brochures.yokochou.com/guitar-and-amp/gr-guitarsynthesizer/197x/index.html
Analog delay
http://mightyblowhole.com/gear/AD202.pdf
http://ushigomepan.cool.ne.jp/effect/catalogue.html
Reviews are at Harmony Central
Images US made
Jazz Chorus (1981-1984) eBay
Image courtesy
of Harley, Dirty Bird a 1970s Jazz Chorus
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Roost |
Roost amps was founded in 1972 by
Brian Roost and Ron Bailey in Southend On Sea in England. Amps
were made until 1984.
1972 - 1980 - Southend, England
1980 - 1984 - Leeds, England
Dating Roost Amps
The serial numbers are quite
random BUT the date of manufacture can be gauged from
- place of manufacture (Southend
or Leeds)
- specifications (e.g. transformer type - Partridge '72 -
'78/Drake '79-80)
- Colour of lamp (orange was used '72-73/red from '73-80 and
green from 80-84)
- model numbers changed prefixes in 1976-77 - e.g. from
ST22=SA100 for the 100w head. [Source:
Andy,
email 10/9/2009]
Roost made amps for Funkshun in
1978.
Reviews are at Harmony Central
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Rosac |
Amps and effects (including Nu-Wa
Fuzz pedal)
Images eBay including rare early 1970's Rosac Nu Fuzz
built by Ed Sanner, the man who designed the Mosrite Fuzz Rite.
Reviews are at Harmony Central |
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Rose Amps |
Rose amps were made from 1970 to
1973 in Tualatin, Oregon, USA.
Solid state, reverb, tremolo, RF
control ("re-generated frequency." sounded like a cross between
distortion and presence), bronze-colored faceplate, black knobs;
wood amp cab and speakers cabs covered in boat flooring textured
material, colored light brown with white flecks; bass amp use
rear mounted speaker.
Chris Christmas and Alan Gill
worked for Sunn Amps in Tualatin, Oregon in the late 1960s. They
teamed up to produce their own amp, called Rose, named after
Allen's cousin, Rose Eibel. Bands in the Portland, Oregon area
played these amps. Leo Kottke wanted one, but would not pay in
advance. The band Cowboys and Indians with Allen on guitar and
voice and other musicians used Rose amps exclusively. [Information
and image courtesy of Lawrence Fritts, USA 19/2/2009]
Alan died in a Car Wreck. in 1974
Chris died of a heart attack. Thus the end of Rose Amps.
[Source: James Christmas (son of Chris), email 29/11/2011]
Reviews are at Harmony Central
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Ross |
Founded by Bud Ross (who
established Kustom), Keas Electronics, Chanute, Kansas in the 1970s. Primarily
an amp manufacturer but started to produce effects around 1978
(US made). Later made in Asia. [Source:
Vintage Guitar Magazine Price Guide]
Later - a Division of
International Music Company, Fort Worth Texas
Images eBay.
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Route 101 |
Reviews are at Harmony Central |
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Royal |
http://tix.gozaru.jp/stompbox.html
http://tix.gozaru.jp/amp.html |
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Royalist
 |
There is a Royalist guitar brand
of RCA Victor - presume this brand is the same.
Royalist amplifier. This
example1963 Royalist tube amp Made in USA found on eBay:
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Rozz |
http://tix.gozaru.jp/stompbox.html
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Ruetz amps
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Ruetz amps at myspace
Reviews are at Harmony Central |
