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überarbeitet am 19.10.2010
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R.L.Drake company has been founded in 1943 by Robert Lloyd Drake,
in the first years of existence, the company produced amateur radio accessories.
After moving to Miamisburg OH, Drake introduced in 1957 an amateur radio receiver
with a completely new design philosophy - the R 1-A. This small triple conversion
set did - with it's above average SSB reception - perform surprisingly well,
in comparison with the heavy black or dark grey boatanchor competitors
In 1960 - 1966, Drake brought out several receivers
in the R - 2 Series, covering amateur bands only.
In 1964, Drake presented the first receiver of their very successful R - 4 series,
this double conversion set offered a dial accuracy of less then 1 kHz in the
Amateur bands and additional broadcast band segments, separate plug in crystals
for each band allowed the extension of the receiver's coverage. The
R - 4 B and the R - 4 C,
which offered all the possibilities of signal processing still found on modern
receivers, like a choice of IF filters, passband tuning, notch filter and a
switchable noise blanker, could be connected to an optional external frequency
synthesizer: The FS - 4 allows continuous coverage up to 30 MHz without gaps.
After the intermediate step with the SPR-4, this
receiver was completely solid state, but was technically quite similar like the
R - 4 series receivers, Drake introduced their first models of the R-7 / 7A
series with an integrated frequency counter in 1981.
For the commercial and marine communications market, Drake offered several sets
basing on the technology of the SPR-4 (marine sets RR-1) or of an improved R-4 with
integrated frequency synthesizer and nixie tube frequency display, the DSR- and
MSR- series receivers.
The Drake SSR-1 made in Japan was a solid state portable set with Wadley Loop-
circuitry, technically quite similar to the Century-21 or Standard C6500 - receivers.
For more informations about the modern Drake tabletop receivers, have a look
at Drake Desktop Receivers page.
1 - A:
1957, triple conversion,
ham bands coverage,
AM, LSB, USB,
CW, 2,5 kHz |
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2 - A:
1960, triple conversion,
ham bands coverage,
AM, LSB, USB,
CW, 4.8 / 2.4 kHz |
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2 - B:
1961, triple conversion,
ham bands coverage,
AM, LSB, USB,
CW, 3.6 / 2.1 / 0.5 kHz, linear dial |
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2 - C:
1966, triple conversion,
ham bands coverage,
AM, LSB, USB,
CW; 4.8 / 2.4 / 0.4 kHz, circular dial |
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R - 4:
1964,
ham and broadcast bands coverage,
AM, LSB, USB, CW,
4.8 / 2.4 / 1.2 / 0.4 kHz |
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R - 4A:
1966,
ham and broadcast bands coverage,
AM, LSB, USB, CW,
4.8 / 2.4 / 1.2 / 0.4 kHz |
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R - 4B:
1967,
ham and broadcast bands coverage,
AM, LSB, USB, CW,
4.8 / 2.4 / 1.2 / 0.4 kHz |
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R - 4C:
1973,
ham and broadcast bands coverage,
AM, LSB, USB, CW,
8 / 2.4 kHz |
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SW - 4 A: 1967,
broadcast bands coverage,
nur AM, 5 kHz |
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SPR
- 4: 1969,
broadcast bands coverage,
AM, USB, LSB, CW, 4.8 / 2.4 / 0.4 kHz, solid state |
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SSR -1: 1975,
500 kHz - 30 MHz, AM, LSB, USB, CW,
5.5 / 3 kHz |
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DSR - 1: 1969,
10 kHz - 30 MHz,
AM, USB, LSB, CW, ISB,
6 / 2.4 / 1.2 / 0.4 kHz |
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DSR
- 2: 1974,
10 kHz - 30 MHz,
AM, USB,
LSB, CW, ISB,
6 / 2.4 / 1.2 / 0.3 kHz |
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MSR - 1: 1971,
10 kHz - 30 MHz,
AM, USB, LSB, CW, ISB,
6 / 2.4 / 1.2 / 0.4 kHz |
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MSR
- 2: 1977, 10 kHz - 30 MHz,
AM, USB,
LSB, CW, ISB,
6 / 2.4 / 1.2 / 0.3 kHz |
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RR - 1: 1973,
8 maritime radio bands, 4 additional 500 kHz segments with optional crystals,
AM, USB, LSB, CW
4.8 / 2.4 / 0.4 kHz |
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further reading:
d: Schiffhauer Nils: Oldie-KW-Empfänger, vth-Verlag, D -
7570 Baden - Baden
e: Osterman, Fred: Receivers Past & Present, Universal
Radio Research, Reynoldsburg, OH 43068, USA, ISBN 1-882123-07-7
e: Moore, Raymond,S.: Communications Receivers, RSM
Communications, LaBelle, FL 33975, USA
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