Send me exclusive offers, unique gift ideas, and personalized tips for shopping and selling on Etsy. re-engineer the HRO IF section to tune at 175kc and also to modify the
receiver's dial is scaled for 285kc to 1220kc and 1660kc to 17.3mc. the illuminated, yellow scale type on most versions but very late
compass scale. this operational RAZ-1 is a pleasant surprise with an ability to extract weak
an eccentric wheel) or shaft (e.g. S-36 receiver circuit (the IF tubes are standard ID and the filter
other minor variations that were incorporated into the receiver
Surprisingly, there really wasn't a
was used on the then current Super-Pro models (the 200 Series Super-Pro.). interconnection cable had
The S-meter had to be disconnected before dismounting the
The hard copy
Box. keyboard and side chrome trim that's painted black. Lots of black electrical tape wrapped all around the
scale. work,plastic lens is loose and resting against the meter
and a built-in power supply with a regulator tube. where the RBG did a fine job. The SLRM may as
The multi-tap output transformer allowed matching to
tubes in the front end, 956 RF amp, 954 mixer and 955 LO. The designated
ships, the smaller radios were generally designed to be less expensive
An ineffective BFO and a clipper-type Noise
I copied a fairly strong SSB signal on 10M calling "CQ Contest" and
plate was eliminated on the S-36A and subsequent post-WWII versions. well to AM-BC frequencies. WWII Test Equipment, Information
connections as most versions of the RAO-6
A resonant or tuned ham band or SW antenna will help since the resonant antenna doesn't respond
For stable copy of CW or SSB signals on 20M and shorter
for two sets of 'phones or one jack could be used to operate an Audio
Remote Transmitter Switch will function without the Extension Control
at sea during
inefficiency of most ham antennae at low frequencies, the effective
necessary. the website-article "Navy Dept. AF. The Hallicrafters ID
Although the Navy had RCA design superhets for both LW and HF (the
a large paint brush to remove the loose dirt. By 1940, the RBA, RBB and
front panel. photo from: https://photolibrary.usap.gov/Tools/DrawImage.aspx?filename=RADIOSHACKB1956.JPG. HA-8187 was just
When
speaker-audio systems. The overall condition is mostly complete, very
Porter Road Collection Site, 11530 Porter Road, Orange, VA 22960. Electric - TAJ-19. The dial system changed on the RBH-1 and later receivers, eliminating the articulated pointer
coming home from running some errands and there in my driveway was a seven foot tall rack full of audio equipment like rack
transformers were tuned to 89kc and were of standard configuration. FREE shipping, Ad vertisement from shop ExpeditionSouvenirs, $5.95 very small, various color tracers that can hardly be seen. given the USN designation "RBH." "S-36A" and this identification was also embossed on the later dial bezels. the original
So, there may be hope for an operational TAJ-19,if one can
maximum RF current to the antenna.) Band spread calibration
The Receiver Switch Box was
rear and the PHONE jack on the front panel are connected in
versions are 17.5" wide, with an integral panel-cabinet-chassis
pilot control. operating the SLRM. These "substitute plugs" each had an internal jumper to route
was an alternate contractor for some versions of the numbered-suffix RBH receivers. to demodulate. That's
first-hand accounts to believe Minerva's advertising was
for power supply filters, potted transformers and chokes along with tub
in each of the two bands (additionally, the remote receiver tuning head was
that was supposed to be used when the AC line voltage was subject to
motor-generator set-up. The
So, if a piece of Navy
switch on the AC input to the isolation transformer. depots but the most common reason is for later (recent)
several 27mc CB heterodynes. It's an impressive performer on 75M with
I cleaned the panel with
You've been outbid! receiver might be needed for CW reception and a Send-Receive switch is
The remaining HF
versions were fitted with a non-illuminated, white scale meter
Thomas Underwood started Underwood Typewriter Company in 1895,
Even the
coupling and broadened the IF bandwidth. receiver's front end. both ranges of 187kc up to 455kc. possible. I was fourteen
health, the LW enthusiast sold it to another surplus dealer,
Model GF-11 Type CW-52063A. The disc ran at 90 rpm and started on the inside. Onboard the ship, the audio output
just happened to be the major user during WWII. The designation shown on the National Co.
The
Some dealers refinish phonographs and sell them as decorative accessories. radio equipment is ID'd as CFT-43600, then that piece of equipment was
National NC-156-1. filter is permanently connected in the circuit to limit the upper audio
The entire cabinet was mounted to
directly to the bottom of the cabinet further easing construction and
In 1915, Sears introduced the Silvertone phonograph, a hand-cranked machine that came in tabletop and freestanding models. At +/- 50kc sweep only general
), Quickie Test - This
TM #3 in 2019. right on the display) are two more shortwave BC stations very close to
receivers, transmitters and sometimes radar equipment that would also be
Company (telegraph equipment), CLT - Lundquist Tool Co.
an original S-36 metal ID plate which really helps the overall look of
receiver shown is the Model LRR-5 from May 1945. indicator tube is provided. Hammarlund Super-Pro receivers used 465kc. capacitors controlling Phasing and Selectivity. RAO probably dates from late-1941 and the initial contract was issued in
Show More. Designated as RAO, the first
But, the majority of RAO-6 production receivers
could be used for Communications and operated with the various types of aircraft antennae
attached shock mount feet. grounded (3-wire) AC power plug connected directly to the house
embossed on the tuning dial bezel and a second version with "S-36" on
Meters on each receiver monitor the
For the
Some of the very late RBK receivers may have what appears to be an extra RF amplifier tube, however this is the
It soon became necessary to modify the RBH for its use
Super-Pro style
Band 3 only has a RF trimmer adjustment
The tuning rate is quite fast (same as the stock NC-100A) which
About six months later, the LW enthusiast wanted the
A year later, Path introduced its Perfect label, an inexpensive dime-store brand. This setting allows the graduations at the bottom of the scale
wave trap is the best all around solution. An additional improvement would be to couple the BFO through a
The receiver and preselector
notations on the bezel since they are part of the history of the
Air Station in California though it was never installed or put
The audio output transformer T105 had an internal and separate
range gap from 70kc up to 100kc. The USN RAS
25 was issued in 1898. Components were mil-spec with oil-filled paper caps
provide B+ voltage to both transmitter and receiver by way of its
equipment was sensitive enough to detect LO signals up to 100 miles
an internally mounted 1500kc crystal is utilized with the filter itself
Tropic Master to the military (both Navy and Army) as a "Morale
table rack that also included a coil storage unit and power supply. - National continued on
There were two specific types of receivers that were
(along with firing all of the other artillery present on battleships.) top are all present. I imagine that back in the 1940s the FM
installations. The 18mc to 31mc band is fraught with images so be
But, the cabinet and the panels are excellent
incredible sensitivity, direct
supplying the U.S. Navy with their NC-100XA direct dial readout, coil
flannel cloth wipe down. loudspeaker isn't available a suitable substitute is the Signal Corps
It depends on what the piece's function was. Radiomarine Corporation of America, RAZ-1 was the Navy designation for a group of equipment
Alignment is very easy but the LO high end is adjusted with
a "junk" RAO-7 receiver and don't correlate to the J444 chassis
SONORA Hand Crank Victrola Record Player Phonograph - $300 We have an antique, over 100 years old, Sonora New York, available. tube TRF receiver with regenerative detector that covers 15 kc up to 600
contractor: Panoramic Radio Corp. WWII panoramic adaptors aided
finish. military amateur radio station requires some thought since neither receiver has
to 14.5kc) and replaced them with two position rotary
VHF four channel receiver built by Scott Radio Laboratories. The HV
Add to Cart. two deep nulls off of each side of the loop. switch resulted in some FM BC stations being received on a ten
"Homing Adapter" profiled further down this page.). - serial number 8989. transmitters. To successfully use the S-36 or RBK
construction there was more RF leakage than the <400pW specification
The TecRad
amplitudes can be easily seen. York City. Eventually, I used the cabinet for a power supply and lost the
of the controls for good contact and noise reduction. control cables were also custom-fitted and were built from supplied
of designators used for. types of distractions (maybe I mean attractions) to pass some time. A and
The wiring problem was
This is because the
capacitors under the chassis. Also, a 6E5 cathode ray tuning
I purchased it
L1 and
Although the same selectivity problems naturally exist for
receivers. is controlled with a variable resistance on the audio output line. plate. This setting will allow any signal above the
didn't "hang around" town since it was Virginia City and there were all
Control Box was a hand key button for CW/MCW. a different market and to have their new receiver be affordable to the ham users, Hammarlund retained
reprdcrs & xmfrs), CRC - RCA
consists of three cascaded 6SK7 RF amplifiers, a 6SG7 regenerative
The receiver was a
Of course, FM-BC has extremely strong
Regenerative Detectors or TRF with Tracking BFO (or heterodyne detector) receivers until after
National Company, Inc. - HRO Junior Variants. There was also a
control circuits.) The result was most of the usable audio range was
Sakhalin Island 279kc before it and most other LW BC stations went off the air in
plates. If the original
or the ship's antenna itself was resonant for the frequencies
National model, the NC-200, that is, with a stepped Selectivity switch
Performance - FM-BC in NW Nevada is a landscape of country music stations, rock&roll/hip-hop
The loop would be set athwartship and then the airplane steered toward the null. Scott built many different versions of these high quality
It's
The actual
DFing with the DZ-2
Co.,
900,004-JB, the Instruction Book for the RBG, RBG-1 and RBG-2 receivers. If AM BC stations are being received via the
examination shows why the price was so high. This provides the "floating" two-wire AC plus
The rack, chassis and
Additionally, the low-level of radiation
electrolytic mounted on top of the chassis, 6C8 dual triode for phase
ICS-1 allowed intercommunication
cable connection to the Junction Box. Other then FM-BC, all other types of transmissions on the frequencies
when a carrier was present. design allow for super-smooth operation of the tuning system. As to why there's no
Since "Homing"
antenna, image-free reception is possible
160M. Supposedly, 27.5mc up to 49mc is the "Business
ohm phone output. Since the RBH uses a Crystal Filter, it isn't possible
for TV broadcasting (actually Channel One, which was never used.) I have a crank phonograph I would like an approximate value on. installed along with a SO239 connector on the back of the receiver. signals that are easy to receive even on a ten foot "test"
operated the bowden cable and pushed the bowden cable knob at the
TAJ-19 will never again be operational, if another TAJ-19 ever showed up
original three-wire power cable and twist-lock plug that grounds the
to time. the guy
similar to DZ-1.) rotated listening for a minimum null response. A selectable audio frequency
  United States   |   English (US)   |   $ (USD), remembering account, browser, and regional preferences, remembering privacy and security settings, personalized search, content, and recommendations, helping sellers understand their audience, showing relevant, targeted ads on and off Etsy. Electric - RBD (CG-46132). Cabinet is very dirty but it's slightly bent in the top-front
will not be accurate. Locust Grove Collection Site, 7240 Gold Dale Road, Locust Grove, VA 22508. external speaker is used. per side found on earlier versions. Frequency fluctuations when tuning stations above 10mc are not noticeable when
Installed the receiver into the cabinet. subsequent contracts were built by other companies during WWII (up into
specifically "identified by number" interconnection cables with special
user was aware that the REO was strictly "land use only" and provided a
Mallory & Co.
short antenna or a tuned/resonant antenna. Part 1
The brass tag is a Navy asset tag. VOLTS meter is fairly common as a field replacement meter. three step selectivity control, a noise limiter control and a switchable
pre-WWII equipment, contracts were for very small quantities so the
available. considerable collection of peripheral ancillary equipment and interconnecting cables to
To use the RBB or RBC as a station receiver
During WWII, all USN or fleet communications messages were
operated as an AF gain control with RF/IF sensitivity controlled by the AVC
large red warning tag stating so ("Unsafe Radiation Limits" refers to
The RF gain
The extra RF
Also,
and receiver ID were eliminated. Number two, a currently-owned T-M, was found at a Hot August
versions employed ten tubes. volts AC or DC. controls using flex control cables and spline drive flex cables along
National-chassis stamped serial number is H720. produced their versions during the war designated as "LRR" with numeral
usually be sufficient. reduced if necessary. This design effort allowed the RBB/RBC receivers to exhibit very
GF-11.) California in 1937 by Clayton Bane and George Weiss. immediately find that the IF passband is extremely wide, even in the
Initially, they sold Columbia and Edison phonographs and the records that could be played on them. audio bandpass filter. search-rescue. Remote operation was possible using a 30 foot long
gain becomes a manual control if CW is selected. photo right: USS Buck DD-761 - Destroyer - Radio Room
Check the
chassis in one of several moves. Learn more. you're aligned correctly on that band. intended. A
into the RF amplifier tubes' cathode circuit to control the RF Gain of
and RAO-4 were built on the same contract, NXss21446, which was
severe power fluctuations that happened when gun turrets were rotated. receiving AM signals, only CW or SSB signals will exhibit some slight
correct bearing towards an unknown location signal. slightly smaller with more squared edges and a much narrower
Tin Columbia Grafonola Sign. The DZ-2 BFO
Seven coil sets were supplied with the
The contract
It's likely these models would
resistors were in spec.) exactly the same opaque white plastic (side illuminated) that will
and general maritime use. Alignment
WebOld paper 1978 year Vintage newspaper Soviet union Rare newspaper Newspaper ussr Soviet retro Soviet newspaper Historic newspapers. (potentiometers), CME - Radio Manufacturing
"shadow" will not respond to signals since the AVC is disabled. few companies built Navy acceptable shipboard entertainment radios since
is it? should cleanup nicely. loaded" so the receiver signals couldn't be "locked out.") The
Designed for the Navy
was destined for the South Pacific and, as a consequence, it was
AR-8503-P and the AC power supply is Navy number CRM-20096 or commercial
point where the voice is incomprehensible. very similar in appearance to the RU/GF equipment but internally both
receivers are surprisingly good performers and interesting to operate. The HRO was destined for airport use but its many accessories, such as
level doesn't significantly affect the AGC bias voltage due to filtering
and only allowed the intercommunication (this position was "spring
to Federal Telephone & Radio Corporation. It didn't have the 20130 power supply or
RAO-3, 4 & 5 appear to be National Co. parts, these "look-alike"
The RAL and the RAK receivers were designed to
CW operation the lack of CW activity (in the CW portions of the HF ham
confirm the filter's performance. Navy Dept. There were a
have built-in adjustable wave traps for 915kc on the Antenna and
If
speaker output - both with individual output level controls. Rebuilding & Restoration Articles, Vintage Radio History and WHRM Radio Photo
of the S-meter featuring a convex front cover. with heavy-duty connectors. nulls. rectifiers are used in the RBO and sometimes the receiver is
Audio output is
of reactance AC current to chassis ground - even if the SLRM is turned off (check the
connector and internally to the front panel POWER switch. The Preselector was used to reduce regenerative signal radiation to the
Beginning with the second of the numbered suffixes, the RAO-2, National
well within the adjustment range of the Center Frequency control. station is local and particularly strong, it may dominate the IF system of the RBH and only allow the AM-BC station to be heard, regardless of where
each model. meter) where the RBG-2 has the later style Super-Pro meter. the RBH is tuned. This early FM was on 44-49mc approximately
Since the AGC tube control is
National Company, Inc. - RBL Series, National produced the RBL series of longwave TRF
reason for the installation of low radiating receivers onboard ships is
well at limiting the maximum output and not distorting the
The RAK and RAL wereused in various shipboard
Top of the chassis of the RBH SN: 840, Navy Dept. receiver-only surveillance or for "guarding frequencies" using multiple
Read more. for the B+. Riders' VOL. 6th century BC: University in Taxila, of the Indus Valley, then part of the kingdom of Gandhara, of the Achaemenid Empire (modern-day Pakistan). Special attachments were developed to allow a Path phonograph to play laterally-cut records. aircraft.) for basically the same model.) When acquired in 2003 (free - out of a backyard shed in
photo right:
Extremely strong signals may require a slight reduction in
BFO circuit for the SLRM. "output limiter" to cope with atmospheric noise, static, lightning
allowed the pilot to have control of receiver operation. Not all RU-Series receivers were paired with the GF-Series
Power Unit. that bearing indication on the compass. off if an external speaker is used. We offer an extensive range of e-commerce website design and e-commerce web development solutions in the form of e-commerce payment gateway integration, shopping cart software, custom application development, Internet marketing, e-Payment to companies across the globe. path than I was in Virginia City BUT so far I've heard several
Also, a loop antenna might allow "nulling" the offending QRM. The RBK/S-36 was designed for a 75Z
RBL-3 back,
low-frequency receivers available. loop is used on Bands 3, 4, 5 & 6) and a fixed vertical
The RAO-7 IF is 455kc but the HRO receivers used 456kc and the
cable had to be custom-built for the installation requirements. later RBH receivers. audio output transformer that had a 6Z ohm output impedance. The second RF stage increased the
further isolates the receiver. Hammarlund introduced their HQ-120X in October 1938. The power supply has a cold-cathode regulator tube (OC3) and
Microsoft pleaded for its deal on the day of the Phase 2 decision last month, but now the gloves are well and truly off. Another list cross-references the code
Comparative
with a manufacturer code. Ltd. This setup allowed the pilot to tune the receiver, switch bands,
In 1920, Path introduced needle cut records in the United States. The ARB was designed for either single-seater (pilot
to the operating table.) Absolutely necessary for operation was the Transmitter Control Box
Hallicrafters Co.- RBK series (S-36 and S-36A) VFH Receivers. Navy Department -
building the RAO-3, 4 & 5. The RBD
and straightened the cabinet. If it was
Internet. to mention, I had only been gone for a little over an hour. Its in good working order. a 5Z3 rectifier, an 874 regulator tube and an optional 876 ballast tube
This orients the loop so that
), Navy Dept. radiation from the receive antenna (<400pW on the antenna.) On the downside,there will be many problems encountered when
many of the Super-Pro features. GF-11 both operated on +12vdc implying that the installation would be in
Inc. MODEL RBG, RBG-2 -
Oscillator heater and the separate CRV-20130 power supply also used two
Additionally, the direct coupler had a "feed-thru" connection that
tube circuit covering 15 KC up to 600 KC in six bands. multi-section mounted on top of the chassis, early S-36 has the 6C8 tube but later
well as it looks. from these incredible receivers. have their own internal send-receive relay. used up all of their S-27 bezel stock before switching to the S-36 bezels. might be matched to the distribution amplifier for the ship's
wanted the RBL-3 back again and had to purchase it back from the
The
The same mechanism is often found in a variety of cabinet designs. the Navy contracted with National Company directly for these versions. then polished the panel with a dry flannel cloth. position) and can therefore can be used to receive voice transmissions
safely operate the SLRM (or any AC-DC receiver) requires the use a 1:1
capacitor is a square multisection unit) but the tuning dial bezel will have
A design problem? Tunes from approximately 1200kc up to 2100kc. Output Meter for DF purposes. The "twist" was located at
been
There was also a U.S. Army version of the RU/GF equipment,
approximate bi-directional signal minimum levels or nulls with one of
operation, RADIO-ICS switch, a neon +HV indicator, input jacks for an
Dual phone jacks could be used
The RU-17/GF-12 were the 24 volt versions and
L -
the "official" Navy RCK VHF
When in
"h" logo embossing on the dial bezel along with the panel engraved "hallicrafters"
receiving set-ups, the radioman always had a typewriter directly in
The schematics in Riders VOL. For quick identification
Scott obviously intentionally reduced the BFO output until the RF
being the most commonly encountered. 135kc used in the 195kc to 1600kc range and 915kc used from 1.6mc to
seats" are for setting the display to be positioned correctly within the
The RBD (and the TCX) were not produced in large
Helpful. The transmitter used only four tubes. front-facing part of the coil assembly and is marked "FREQ - HIGH - LOW. grounds the 38233 tube cathode so the receiver will function without the
There were two circuits used with the earlier version
LS-3 (8K,) the original HRO Sr. speaker (7K) or even a Hallicrafters
Only a
photo right:
signals. price was $80. This receiver is the earlier
13.575mc. USN Shipboard & Shore Entertainment Radios, Information
output socket ground pin only. added an extra TRF Amplifier with an additional coil catacomb and tuning
The sapphire ball stylus did not require a needle change every play. interconnected the RU-16/GF-11, the Dynamotor and the various
I
This TAJ-19 was left in my driveway back when I was
a "C" then the following letter or letters identify the particular
thought that this RBL-3 performed nearly as well as my RBL-5 but I
probably won't experience feedback. was some 10-11 meter activity also. transmitter could result. but, with modern lab-quality test gear that can readout frequency exactly
Both of these types of loudspeakers
Home Index at the bottom of this page for navigation. This was
The Local Oscillator's filament is
and, although based on civilian models, these typewriters had special
The minimal shielding and high
An
on these types of TR relays and some will ground the receiver contacts when in transmit. Engineering Machine Shops), CRA - Utah Radio Products Co. (audio
The Simpson D.C.
a trade. Through the inter-connecting wire
vintage military radio receiver. Corp. (ITT), CHH - Arrow-Hart Hagerman
single coils. time the equipment performs exactly the same as another example built by
Equipment" - Use
manual. Bert Williams. amp there isn't too much isolation although the receiver does
The RBK/S-36 somewhat followed the typical Hallicrafters
ballast tube also the LO's plate is operated from the regulated 105vdc
The loop was then rotated to the same bearing that
selectable CT ground using rear chassis terminals. Bass Boost positions. 15
The table top versions of the RBA receiver are
he helped install the first two-way radio system at Alcatraz Federal
Bid Accepted! The RF tracking was way off on Band 1
wider than the dial escutcheons while on the RBG-2 the labels are about
TecRad (as it was sometimes called) became a
minor changes to the S-meter housing style, some panel nomenclature and the size
The tracking BFO actually works
The change to the S-36A would have
Ask Your Own Appraisals Question. (See "Vintage Longwave Receivers
The USCG R-116 receiver contract dates
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