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Reverb Name
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Brand
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Comment
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Auto Reverb Unit
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Olson Electronics
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1974 Catalog Data: Model #RA-749J, 6¾ x 1½ x 3½,
2 lbs., $4.99.
Same model with 6 x 9" speaker & chrome grille, 3 lbs., $6.99 (p. 141).
Controls:(1) Thumbwheel front/rear balance control (“tuning”).
(2) Second thumbwheel is probably on-off control.
Output: SE?
Part Details: 12V neg gnd; transistors: 2?
Product Details: Unit looks very much like Dynatronic R209 reverb. Inland
probably manufactured this unit for Olson.
Tank: ?
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Dynatronic R-209
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Inland Dynatronics, Inc.(Japan, aftermarket)
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Controls: 2 rotary pots
Output: SE
Part Details: 12V neg gnd; transistors: 2; transformers: 2
Product Details: One of few reverbs to use PCB. Likely same as Olson unit.
Tank: 1 spring
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Dynatronic R-369 (stereo)
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Inland Dynatronics (Japan, aftermarket)
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Controls: 3 rotary pots.
Output: SE; output transistor is type 2SB426 (Toshiba, germanium, PNP) in TO-3 package.
Part Details: Likely stereo version of R-209.
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Echo-Mate
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Automatic Radio
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Controls: (1) Left: Front/rear balance fader (left) & (2) Right:
On-Off rocker switch
Output: SE
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Kinematix (3 models)
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Radio Shack
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1967 Catalog Data:
- “Good” model, #12-1460, 6½ x 3¼ x 1⅝, 1½ lbs., $14.95.
- “Better” model, #12-1456, 6½ x 3¼ x 1⅝, $24.95
(w/6 x 9" speaker).
- “Best” model, #12-1452 with 6 x 9" speaker, or #12-1453 with
6" round speaker. “Works with any speaker, 2 to 40 ohms.” 4 transistors.
Controls: Models with 1, 2, or 3 knobs (“Good-better-best”
marketing). (1) “Front/Rear” rheostat activates DPDT sw;
(2) “Delay Tuning” (depth or timbre) pot; (3) Unknown.
Design: Under-dash unit (all models). Rear speaker & wiring come
with “better” & “best” versions.
Output: SE (bottom of line, “Verba-Mite VX-700”), DE (“best” & possibly
“better” models).
Part Details: Verba-Mite VX-700: 2 transistors. “Better” model has 3 transistors.
“Best” model is DE, 4 transistors. 8 Ω speaker couples to untapped inductor
(unknown specs). 3" reverb tank in dash unit. “Better” &
“best” models have all silicon transistors. All models for neg gnd. cars.
“Best” model works with negative or positive ground cars.
Product Details: Motorola manufactured original version of “Best”
model (Source: 1964 catalog, p. 93). At time, model name was Vibrasonic.
Tank: “Better” model has 2 springs in tank, superior LP filter.
33mS delay. “KM” logo on right side, dash unit. “Verba-Mite VX-700” is one of
smallest reverbs on market.
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LRE (3 models)
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Lafayette Radio Electronics
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Controls: Fader balances car radio vs. reverb speaker output. Also amount of reverb, 0-100%.
Design: Under-dashboard. Smallest (basic) unit: 7½ x 3½ x 1¾".
12V neg gnd. Catalog #99 P 8519W, $11.95. “Deluxe” model (People also know this as
Verb-A-Tone, due to leftmost pot that adjusts reverb amount.):
1⅞ x 4 x 9". 12V neg gnd. '68 Catalog #17 P 0109, $22.95.
Part Details: Separate isolation transformer for “ultimate match.”
Product Details: Deluxe unit looks like same product as “Stereo 67”
(Also “Stereo 68”).
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Model 19B4192
(and others)
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Allied Radio
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1969 Catalog Data: Part #19 C 4579, 1¾ x 8 x 5¾, 6 lbs., $29.95.
Part #19 C 4133: Same, less speaker, 5 lbs., $28.95 (pp. 148-149).
Controls: (1) “Front/Rear,” (2) 100Ω “Volume” pot; (3)
500K bias pot (internal)
Design: Under-dash unit
Output: SE
Part Details: 2 direct-coupled transistors; 8Ω speaker couples through tapped inductor
(custom part). Q1= 2N2924 (Si). Q2= 40022 (Ge, TO-3 power)
Product Details: Gibbs probably manufactured this reverb for Allied. (Switches & pots in same
positions on one Gibbs model.)
Tank: 2 springs
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Realistic (2 models, replacing Kinematix products)
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Radio Shack
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1969, '71, & '72 Catalog Data:
- 1-knob model, #12-1333, 6½ x 3¾ x 1⅝, 1½
lbs., $13.95.
- 2-knob model, #12-1334, 7½ x 5¼ x 1½, $19.95
(w/6 x 9" speaker & grille).
Controls: (1) “Front/Rear” rheostat activates pull-on DPDT sw;
(2) “Delay Tuning” (depth or timbre) pot.
Design: Under-dash unit (both models). Rear speaker & grille comes
with 2-knob model.
Output: SE
Part Details: Both models: Probably 2 transistors. 8 Ω speaker.
3" reverb tank. Both models for neg gnd. cars.
Tank: 2-knob model has 2-spring tank.
33mS delay. “Realistic” logo & pilot light on right side of cabinet.
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Revbra, Stereo Reverberator
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Gibbs
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Controls: (1) “Radio/Stereo” slider; (2) “Off/On” slider;
(3) “% Reverb” pot; (4) “Balance F←/→R”;
(5) “Volume” pot.
Design: Under-dashboard controls. Spring & amplifier in trunk. 12V neg gnd.
Output: SE
Part Details: 3-transistor circuit. Probably complementary & germanium.
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RU-101, RU-104
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Cletron
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Controls: Balance control. Other controls: ?
Design: Under-dashboard controls. Spring & amplifier in trunk. 12V neg gnd.
Output: SE
Part Details: 3-transistor circuit. Probably complementary & germanium.
Product Details: Units were available in 1964-65. Cletron also made guitar speakers.
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Sankoh
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Sankoh (Japanese manufacturer)
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Controls: (1) Front/Rear “Balance” pot. (2) “Riverb” (sic.) pull-on pot:
Might be reverb level control.
Design: Under-dashboard. Spartan design. Simulated wood grain. Silver-plate frame.
Prominent rivet in blank area, right of controls (where marketer nameplate would normally be).
Rub-on labels above pots. Misspelled “riverb.”
Output: Probably SE
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Stereo 66
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Unknown (Japanese manufacturer)
From Burstein-Applebee
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1967 Burstein-Applebee Catalog Data: Part #32B 175. Model RR-22R, 5 lbs.,
neg gnd., $22.45 (p. 157). Matching FM converter.
Controls: (1) Front/Rear fader pot. (2) Rocker switch for effect on/off.
2 pots on left & logo on right.
Design: Under-dashboard
Output: SE
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Stereo 68 (Also “Stereo 67”)
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Unknown (Probably Japanese)
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Controls: 2 controls (L-R): (1) Verb-A-Tone (likely "depth" control)
(2) F & R pot, including pull-on / push-off. Also panel lamp.
Design: Under-dashboard. 8.25"W x 3.5"D.
Output: SE (Sanyo, Japanese TO-3 profile part).
Part Details: Probably same as Truetone, Lafayette LRE “Deluxe”
model. (Lafayette sold Verb-A-Tone units, & matching AM, AM/FM, & FM converter radios.
See “Verb-A-Tone” by Lafayette.)
Tank: 1 spring. 2 xfmrs.
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Stereo Magic 2
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Tenna (Japanese manufacturer)
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Controls: (1) Front/Rear fader pot. (2) Rocker switch for effect on/off.
Design: Under-dashboard
Output: Probably SE
Product Details: Tenna also makes “Tenna RU-114TC” &
“Ranger RR-13R” models. Direct-coupled circuit is similar to Allied.
NPN preamp & PNP power. Speaker couples through untapped inductor.
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Stereophonic Reverberator
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Sears
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Controls: 1 control (L) & pilot light (R)
“Stereo” model has pots for “% Reverb”, “Balance”, &
“Volume”. Also slide switches: (1) Radio/Stereo, (2) Off-On (each with green pilot
light)
Output: SE
Part Details: Internal PCB with parts. 3 large coils (Possibly 2-transformers &
1-autotransformer.)
Product Details: Model #835-62630. Gibbs probably manu- factured this reverb for Sears.
Tank: 2 springs
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Stereo Verb
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Unknown (Probably Japanese)
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Controls: Front/Rear front/back fader pot with pull-on/push-off feature.
Output: SE
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Stereo-Verb 440
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Gibbs
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Controls: One fader that balances car radio vs. reverb speaker output.
Design: Under-dashboard controls. Spring & amplifier in trunk. 12V neg gnd.
(Models 552 & 553 for Ford)
Output: SE
Part Details: 3-transistor circuit. Probably complementary & germanium.
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Titan
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Unknown (Probably Japanese)
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Controls: 2 controls (L-R): (1) F & R pot.
(2) On-off rocker switch.
Output: SE
Part Details: Under-dash unit. 2-transistor, direct-coupled
circuit, similar to Allied unit. Speaker couples through autotransformer
(1967 circuit).
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Truetone
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Unknown
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Controls: 2 controls (L-R): (1) F & R pot, including pull-on / push-off.
(2) Reverb tone (likely "depth" control).
Output: SE (2SB127, Japanese TO-3). Probably same circuit as Stereo '67-'68.
Tank: 1 spring
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UDR-100, UDR-102
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Sterling
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Controls: (1) Left: “Balance F←/→R”; (2) Bottom-Middle:
Slider, probably “Off/On”
Design: Under-dashboard style. Top-Right “radio dial” (above
toggle switch) is really logo.
Output: SE
Part Details: SE?
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Verba-Mite VX-700
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Radio Shack (1967)
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See “Kinematix” by Radio Shack.
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Verb-A-Tone
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Lafayette Radio Electronics
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See “Lafayette”, “Stereo 68”, “Truetone”, “Stereo 66”.
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Vibrasonic R200
(Also other models: KM202R, KM203R)
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Motorola
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Controls: (1) Left control (Selector)= Off/Rev (Reverb)/Reg (Regular).
(2) Right control= (Balance)= Front/Rear
Design: Under-dashboard. Same as Ford Studiosonic. Motorola manufactured both.
Output: DE? (Model KM202R has 3 transistors.)
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Vibra Stereo
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Boman (Japan, aftermarket)
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Controls: (Left) Chrome, “REVERB TONE” pot controls reverb
amount (“depth”). (Right) Chrome pot, “PULL ON” (push-off),
plus front (CCW) / rear (CW) balance.
Design: Under dashboard
Output: SE
Part Details: 12V neg gnd; transistors: 2? Power device: Sanyo 2SB407
(germanium PNP type, TO-3 package). Unknown preamp device.
Product Details: Handsome, chrome & black design, standard for
period. Chrome marquee on right, with black surround: Blue pilot light,
above words Vibra Stereo. “Stereo” is hyperbole. Reverb
recovery amp has only one power transistor to drive speaker. For stereo,
usually two (or more) transistors are necessary.
Incidental: May be one of earliest “Boman-style reverbs.”
Tank: ?
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Vibra-Tone
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Gibbs
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Controls: Separate control & trunk modules.
Output: SE
Product Details: 2-module reverb, with tank in trunk.
Tank: 2 springs
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*Notes
1. DE= Dual-ended (Class B or AB, complementary) output, 2 power transistors.
2. F= front; R= rear.
3. L-R= Left to right
4. SE= Single-ended (Class A) output, 1 power transistor.
5. TO-3= Large power transistor with integral heat sink & mounting flange.
6. Xfmrs= Transformers
King-size thanks to...
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