| TYPE |
(Click
to see Full-size) |
CONFIGURATION |
YEARS (approx) |
COST NEW ($) |
COMMENTS,
(tech notes) |
TUBES |
| 310(A) |
 |
FM-Mono
Broadcast Monitor
Tuner |
1954-1957 |
$170 |
1st Scott FM Tuner;
Used Unusual (bottom-edge) Slide Rule Tuning, with illuminated
indicator and coarse tuning
slider.
tubes mounted on inverted sub-chassis;
Front panel controls:
level, squelch
("Dynaural Inter-station Noise Suppressor), and vernier
tuning knobs.
All Scott 310-series tuners feature a unique 5-tube/4-can IF/limiter section.
The 310A was the only 310 model to use a 6X5GT rectifier and dual
12AU7 final DINS/amp section.
Used narrow "D" Case.
|
10 Tubes:
Front
End:
(1) 6BK7A or 6BS8/6BQ7A
(1) 6U8;
IF:
(4) 6AU6
(1) 6BN6
AF AMP:
(1) 12AU7
Squelch (DINS):
(1) 12AU7
Rectifier:
(1) 6X5GT
|
| 310-B |
 |
FM-Mono
Broadcast Monitor
Tuner |
1957-1958 |
$155 |
Simplified repackaging
of the "inverted" 310A; using design concepts introduced on the
311-A
First 310 to use famous Scott
round tuning dial with planetary, co-axial (vernier) tuning knobs
and simplified, non-inverted chassis.
The 310-B introduced both tape and multiplex output jacks for use with the 335/LM-35 outboard
adaptor.
Introduced the 12AX7/12AU7 DINS/final output amp
"Silver-Plated" (Modular) Front-End
introduced,
Used narrow "D" case/chassis.
|
10 Tubes:
Front
End:
(1) 6BS8/6BQ7A
(1) 6U8;
IF:
(4) 6AU6
(1) 6BN6
AF AMP:
(1) 12AX7
Squelch (DINS):
(1) 12AU7
Rectifier:
(1) 6X4
|
| 310-C |
 |
FM-Mono
Broadcast Monitor
Tuner |
1958-1960 |
$170 |
Essentially identical to
310-B (above)
with minor cosmetic updates
"Conical Peg-style" replaces co-axial (vernier) tuning
knob.
Used narrow
"D" case/chassis
|
10 Tubes:
Front
End:
(1) 6BS8/6BQ7A
(1) 6U8;
IF:
(4) 6AU6
(1) 6BN6
AF AMP:
(1) 12AX7
Squelch:
(1) 12AU7
Rectifier:
(1) 6X4
|
| 310-CR |
 |
FM-Mono
Broadcast Monitor Tuner
Rack Mount |
1959-1961 |
$220 |
Same as 310-C (above) but
the "CR" was sold
by H.H. Scott, Instrument Division, for professional applications.
Featured RETMA, 5.25-inch x 19-inch rack-mount faceplate.
For $35.00, an optional 600/150-ohm balanced output
transformer was available. |
10 tubes:
Front End:
(1) 6BS8/6BQ7A
(1) 6U8;
IF:
(4) 6AU6
(1) 6BN6
AF AMP:
(1) 12AX7
Squelch (DINS):
(1) 12AU7
Rectifier:
(1) 6X4
|
| 310-D |
 |
FM-Mono
Broadcast Monitor
Tuner |
1960-1962 |
$190 |
Last "Mono" 310 variant
Wide Chassis Introduced, "C" Case (anticipating space
for multiplex decoder?)
Used 12AU7 AF amp, instead of 12AX7
Improved squelch ("Dynaural Interstation Noise Supressor or
DINS")
Introduced high-speed muting (relay-driven) circuits, & diversity reception
opt., both later seen on the 4310
(Note: Front-panel layout easily confused with the early 350 FM-MPX
stereo types.)
|
10 Tubes:
Front
End:
(1) 6BS8/6BQ7A
(1) 6U8;
IF:
(4) 6AU6
(1) 6BN6
AF AMP:
(1) 12AU7
Squelch (DINS) Relay Driver:
(1) 7247/12DW7
Rectifier:
(1) 6X4
|
| 310E |
 |
FM-MPX Stereo
Broadcast Monitor
Tuner |
1963-1964 |
$300 |
Final evolution of the 310
series (and only to feature MPX). Considered by many to be Scott's finest
performing tuner design.
Built on std. "C" Case, wide chassis,
(unlike
the bigger 4310, which used the taller "G"
chassis.)
Included dual relays for Squelch (DINS) circuit and Auto-Sensor Stereo MPX
detection both with new green jewel indicators;
Featured unique Selector switch which permitted user to exclude all mono
broadcasts;
Featured unique front-panel Stereo Threshold Control permitting
user to set minimum acceptable multiplex signal levels.
Used 6V4 rectifier
Dropped
diversity option of 310-D,
added Extruded Front Panel Styling (Capped ("Pegless") Tuning Knob), Dark Brown
Tuning Dial background.
|
15 tubes:
Front
End:
(1) 6BS8/6BQ7A
(1) 6U8;
IF:
(4) 6AU6
(1) 6BN6
MPX:
(1) 6U8
(2) 12AU7
(1) 12AX7
AF AMP:
(1) 12AT7
RELAY DRIVERS:
(2) 7247/12DW7
Rectifier:
(1) 6V4
|
| 311(A) |
 |
FM-Mono
Tuner |
1955-1956 |
$100 |
Significant Scott tuner design; but often over-looked.
Lower-cost version of 310 (two-thirds the cost of a 310);
First use of famous
Scott round tuning dial, using co-axial (vernier/reduction) tuning knobs.
The 311 also introduced the 3-tube IF/Limiter section which was used on
ALL Scott tube tuner designs (except the 310-series) and the final "Compactron"
370/LT-111 design.
Economies were achieved by using the 3-tube /3-can IF section (eliminating
the 310's 6BN6 gated-beam limiter) and eliminating the 310's
"Squelch" and replacing the 310's dual 12AU7 audio output
drivers with a single 12AX7.
Introduced the MPX output jack for use with the
335/LM-35 multiplex adaptors.
Red plastic dial pointers, on early models
Used narrow
"D" case/chassis.
|
7 Tubes:
Front
End:
(1) 6BS8/6BQ7A
(1) 6U8;
IF:
(3) 6AU6
AF AMP:
(1) 12AX7
Rectifier:
(1) 6X4
|
| 311-B |
 |
FM-Mono
Tuner |
1956-1958 |
$120 |
See 311(A) details above,
Early versions had red plastic dial pointers (see above),
"Silver-Plated" (Modular) Front-End
introduced,
used narrow
"D" case/ chassis
|
7 tubes:
Front
End:
(1) 6BS8/6BQ7A
(1) 6U8;
IF:
(3) 6AU6
AF AMP:
(1) 12AX7
Rectifier:
(1) 6X4
|
| 311-C |
 |
FM-Mono
Tuner |
1959-1960 |
$120 |
Essentially identical to
311-B (above)
minor cosmetic changes
used narrow "D" case/ chassis
|
7 tubes:
Front
End:
(1) 6BS8/6BQ7A
(1) 6U8;
IF:
(3) 6AU6
AF AMP:
(1) 12AX7
Rectifier:
(1) 6X4
|
| 311-D |
 |
FM-Mono
Tuner |
1960-1961 |
$120 |
See 311(A)/B/C
details above,
Final variant of 311
series,
"Conical Peg-style" replaces co-axial (vernier) tuning knob.
used narrow "D" case/chassis |
7 tubes:
Front
End:
(1) 6BS8/6BQ7A
(1) 6U8;
IF:
(3) 6AU6
AF AMP:
(1) 12AX7
Rectifier:
(1) 6X4
|
| 314 |
 |
FM-Mono
Tuner |
1961-1963 |
$115 |
Low cost, Wide-Chassis
refinement of 311 design
Used 6FG6/EM84 tuning-eye tube instead
of meter,
Eliminated 12AX7 audio amp and 6AU6 limiter tubes,
replaced with single 6AU8 tube.
Wide "C" Case/chassis,
also see Kit
version, LT-10 |
7 tubes:
Front
End:
(1) 6BS8/6BQ7A
(1) 6U8;
IF:
(2) 6AU6
(1) 6U8
AF AMP:
(none) shares 6U8
Rectifier:
(1) 6X4
Tuning Eye:
6FG6/EM84
|
| 335 |
 |
MPX Stereo
Adaptor |
1961-1963 |
$110 |
Outboard (self-powered) MPX stereo
adapter for adding stereo decoding to Wide-band FM-mono Tuners.
The basic 335 design was also shared in the 333, 350 and LT-110 MPX tuners.
The multiplex
decoder used a 6BL8 as a composite buffer and 19 kHz amplifier.
A 12AU7
was used for the 38 kHz oscillator. Another 12AU7 was used as an audio
stereo matrix circuit.
A 12AT7 was used as the audio output amplifier and
a 6X4 rectifier provided power.
The 335 used narrow
"H" case/chassis
also later offered
as the
LM-35 Kit version
|
5 tubes:
MPX:
(1) 6BL8
(2) 12AU7
AF AMP:
(1) 12AT7
Rectifier:
(1) 6X4
|
| 350(A) |
 |
FM-MPX-Stereo
Tuner |
1961-1962 |
$195 |
The Type 350 introduced true MPX-Stereo. The 335 MPX decoder design was
married to the 311/314 tuner on a wide "C" chassis.
Front panel level control was provided.
An optional
Type C-55
"Stereo Guide" indicator tube (6AV6)
was located at
the 6 o'clock position of the tuning dial,
The original 350's had no Tape Output jack on the front
panel.
350(A) front panel layout very similar to 310-D.
used
wide "C" Case/chassis
|
10 tubes:
Front
End:
(1) 6BS8/6BQ7A
(1) 6U8;
IF:
(2) 6AU6
(1) 6BN6
MPX:
(1) 6BL8
(2) 12AU7
C-55
"Stereo Guide":
(1) 6AV6
AF AMP:
(1) 12AT7
Rectifier:
(1) 6X4
|
| 350B |
 |
FM-MPX-Stereo
Tuner |
1962-1963 |
$200 |
See "Editor's Picks"
The 350B
added front panel Tape Output jack,
The "Sonic Monitor" switch
replaced level control and "Stereo Guide," was absent.
Selenium rectifier for B+,
also see Kit version, LT-110,
used
wide "C" Case/chassis
|
9 tubes:
Front
End:
(1) 6BS8/6BQ7A
(1) 6U8;
IF:
(3) 6AU6
MPX:
(1) 6BL8
(2) 12AU7
AF AMP:
(1) 12AT7
(1) Selenium Bridge
|
| 350C |
 |
FM-MPX-Stereo
Tuner |
1963-1964 |
$220 |
The 350C added the new
"Extruded" Front Panel Styling
(Capped ("Pegless") Tuning Knobx),
Dark Brown Tuning Dial background,
also see Kit version, LT-110B,
used wide "C" Case/chassis |
9 tubes:
Front
End:
(1) 6BS8/6BQ7A
(1) 6U8;
IF:
(1) 6EJ7/EF-184
(1) 6AU6
(1) 6U8
MPX:
(1) 6BL8
(2) 12AU7
AF AMP:
(1) 12AT7
(1) Selenium Bridge
|
| 350D |
 |
FM-MPX-Stereo
Tuner |
1964-1967 |
$225 |
Final evolution of the
350-series.
Only Scott FM Tuner to use sidewinder mounted tuning gang.
The 350D added Auto-Sensor Mono/MPX
switching
using the revised Z-MX-8 section, derived from 340B receiver
The 350D also featured a selectable
Multipath or
Signal Strength
"Magic-eye" 6HU6/EM87
indicator
Slide Rule Tuning Dial
(as introduced on 340B and shared with later solid-state models)
Extruded Front
Panel styling
used wide "C" Case/chassis
|
9 tubes:
Front
End:
6BS8 - V201
6U8 - V202
3-tube, IF:
6EJ7 - V1
6HS6 - V2
6U8 - V3
3-tube MPX section, Z-MX-8:
12AT7 - V501
6KE8 - V502
12AX7 - V503
Tuning-Multipath Indicator:
6HU6/EM87 - V4
(1) Selenium Bridge
|
| 370 |
 |
FM-MPX-Stereo
Tuner |
1962-1963 |
$150 |
The 370 was Scott's low-cost Stereo-MPX tube tuner design, marketed along
side the more expensive 350B/C, 310E, and 4310
The 370 featured low-cost, Compactron Tubes (6M11 & 6AG11), also use
in the 345 receiver.
370's were unique in their use of vacuum tube diodes in the multiplex decoder
switching matrix.
A 6HU6/EM87 tuning-eye tube was used for the tuning meter
Visually the front panel is very similar to FM-mono 314, the 370 uses a "tighter"
(one-piece) tuning-eye aperture
also see
Kit version, LT-111,
used wide "C" Case/chassis
|
7 tubes:
Front
End:
(1) 6M11
IF:
(2) 6AU6
(1) 6HS6
MPX:
(1) 6HU6/EM87
(1/2) 6AG11
AF AMP:
(1/2) 6AG11
(1) 6X4
|
| 370B |
 |
FM-MPX-Stereo
Tuner |
1963-1965 |
$150 |
As 370(A) above, with
identical circuitry;
but with updated
Extruded Front Panel Styling |
7 tubes:
Front
End:
(1) 6M11
IF:
(2) 6AU6
(1) 6HS6
MPX:
(1) 6HU6/EM87
(1/2) 6AG11
AF AMP:
(1/2) 6AG11
(1) 6X4
|
| 4310 |
 |
Broadcast Monitor
Series
FM-MPX Stereo Tuner |
1963-1965 |
$475.00 |
Flagship Scott Tube
FM-MPX Tuner
Separate Left/Right VU Meters
Separate Left/Right and Master Level Controls
Diversity Reception Switch
Stereo Threshold and DINS (squelch), Relay-switched mono/stereo
operation
used large format "G" case, as did 272,
296, 340, 355 types
22 lbs.
|
20 tubes:
(4) 6AU6
(2) 12AU7
(4) 7247/12DW7
(1) 6BS8
(2) 6JU8
(1) 6BL8
(2) 6T8
(1) 12BH7
(1) 6BN6
(1) 6AL5
(1) 6U8
(2) Selenium Rectifiers
|
