|
| |
GENERAL
 | Linear
permeability tuned VF0 with 1 kc dial divisions. |
| VF0 and crystal
frequencies pre-mixed for all-band stability |
| Covers ham bands
80, 40, 20, 15 meters completely and 28.5 to 29.0 Mc of 10 meters with crystals furnished |
| Any
ten 500 kc ranges between.l.5 and 30 Mc can be covered with accessory crystals for 180
meters, MARS, etc.(5.0-6.0 Mc not recommended) |
| Four bandwidths of selectivity, 0.4
kc, 1.2 kc, 2.4 kc and 4.8 kc |
| Pass band |
| 100 Kc Crystal calibrator is built-in |
| Noise
blanker that works on CW, SSB, and AM is built-in |
| Notch
filter and 25 Kc crystal calibrator are built-in |
| Product
detector for SSB/CW, diode detector for AM
|
| Crystal
Lattice Filter gives superior cross modulation and overload
characteristics |
| Solid State
Permeability Tuned VFO |
| AVC for SSB or
high-speed break-in CW |
| Excellent
Overload and Cross Modulation characteristic |
SPECIFICATIONS
| FREQUENCY COVERAGE: 3.5-4.0 MC, 7.0-7.5 Mc, 14.0-14.5, 21.0-21.5, and
28.5-29.0 MC with crystals supplied. |
| FREQUENCY ACCESSORY: Ten accessory crystal sockets are provided for coverage of any 10 additional 500 KC ranges between 1.5 and 30 MC
with the exception of 5,0 - 6.0 MC. |
| SELECTIVITY: Drake tunable pass band filter provides:
 | 0.4 KC at 6 DB down and 2.6 KC at 60 DB down |
| 1.2 KC at 6 DB down and 4.8 KC at 60 DB down |
| 2.4 KC at 6 DB down and 8.2 KC at 60 DB down |
| 4.8 KC at 6 DB down and 20 KC at 60 DB down
Selectivity switching is independent of detector and AVC switching. |
|
| I. F. FREQUENCIES: First I. F. - 5645 KC crystal lattice filter; second I. F.
50 KC tunable L/C filter. |
| STABILITY: Less than 100 cycles after warm up. Less than 100 cycles for 10%
line voltage change . |
| SENSITIVITY: Less than .5 uv for 10 DB signal plus noise to noise on all
amateur bands. |
| MODES OF OPERATION: SSB, CW, AM, RTTY |
| DIAL CALIBRATION: Main dial calibrated 0 to 500 KC and 500 to 1000 KC in
5 KC divisions. Vernier dial calibrated 0 to 25 KC in 1 KC divisions. |
| CALIBRATION ACCURACY: Better than 1 KC when calibrated at nearest 100
KC point. |
| AVC: Amplified delayed AVC having
| slow (. 75 sec.) or |
| fast (. 025 sec.)discharge; less than 100 microsecond charge. |
| AVC can also be switched off. 3 DB change in AF output with 60 DB change in RF input. |
|
| AUDIO OUTPUT: 1.4 watts max. and .5 watts at AVC threshold. |
| AUDIO OUTPUT IMPEDANCE: 4 ohms and hi impedance for
anti-vox. |
| ANTENNA INPUT: Nominal 52 ohms. |
| SPURIOUS RESPONSES: Image rejection more than 60 DB. I. F. rejection
more than 60 DB on ham ranges. Internal spurious responses in ham ranges
less than the equivalent 1 uv signal on the antenna. |
| TUBE COMPLEMENT: |
|
TUBE / SEMI-CONDUCTOR |
FUNCTION |
|
12BZ6 |
RF amp. |
|
12BA6 |
100 KC calibrator |
|
6HS6 |
1st mixer |
|
6AU6 |
PTO |
|
6KZ8 |
Pre
mixer/xta 10 sc . |
|
12BE6 |
2nd mixer and xtal
osc. |
|
12BA6 |
50 KC IF |
|
12BA6 |
50 KC IF |
|
12AV6 |
AVC amp.
/AVC det . |
|
6GX6 |
Prod.
det./audio amp. |
|
6EH5 |
Audio Output |
|
12BA6 |
Noise blanker amp. |
|
12AX7 |
Noise blanker pulse
amp. / shaper |
| 1N625 |
Noise blanker gate |
| 2 x 1N625 |
Noise blanker pulse clippers |
| 1N625 |
AM detector |
|
ED-3004 |
Bias rectifier |
| 2 x 1N3756 |
Power Supply rectifiers |
|
0B2 + 1N625 |
Voltage Regulator |
| PANEL CONTROLS:
| FRONT Main tuning, AF gain, RF gain,
SSB/CW-AM with slow AVC, fast AVC, or AVC off, function switch, band switch, xtal
switch, passband tuning and selectivity, preselector, notch, and head-phone
jack. |
| REAR AND SIDE JACKS AND CONTROLS: S-Meter zero, NB threshold, notch
adjust, antenna jack, speaker jack, mute jack, anti-vox jack, accessory
power socket, ground post, and fuse post. |
|
| POWER CONSUMPTION: 60 watts, 120/240
VAC, 5O/60 cycles. |
| DIMENSIONS: 5-1/2" high, 10-3/4" wide, cabinet depth
11-5/8", overall length 12-1/4", |
| WEIGHT: 16 lbs. |
ACCESSORIES
| MS-4 external
speaker |
|
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