to clean the nomenclature side of the glass dial. The 32V-2 transmitters used five fixed-value mica capacitors in the Pi-L
only change the multiplier side to engage the coupler. Transmitters: AM-30P 30 Watt AM Transmitter Schematic; AM-60P 60 Watt AM Transmitter Schematic (usable for AM-100) AM Transmitter Limiter Schematic; Transmitter Tri-Power Schematic Marti Electronics allows easily inserting the "snap-in" coupler. Although SN:373 was a very early
6.3vac, 115 watts
shields - lots of work that usually has the owner postponing necessary
When it came
* remove the screws (4) holding the dial and PTO to
By about 1938 or 39 the fences had been mended with RCA and the 30J RF deck underwent a minor redesign to use the more mainstream tubes including the 802 in the oscillator and a pair of 813s in the final. 1 - 6SL7GT - CW Sidetone Oscillator, For late versions add 2 - 0A2 - Screen Voltage Limiters, 1 - 6SJ7 - PTO, Oscillator
dismounted from the chassis (four screws and nuts,) its disassembly can be started. I've probably replaced the 4D32 PA a couple of times over the years. Most 32V transmitters do require a bit of work on the
Moving a hundred pound rig does take a bit of caution. version V-2 so it had many parts that were identical to those used
that Collins issued a 32V-2 Service Bulletin #1 in 1956 that described a minor
sounded fine in the monitoring receiver. These parts have to be dismounted along with the
1 - 6AK6 - Multiplier - Buffer Amplifier
the index markings of the scale. Nowadays, most 32Vs are only powered up for short intervals for
the right show the 32V-1 dial after the rebuild. operate more "to spec" when running at 115vac input and seems
The only way to disassembly these transmitters
requires dismounting the chassis rear panel.). signal quality and mostly reliable operation. 115vac input, +HV
Another strange occurrence that really wasn't a problem, just kind of
* remove two screws and lugs going to lid interlock shut
single transmitter. The receiver monitors the PTO fundamental frequency of 1700kc and
NIST radio station WWV broadcasts time and frequency information 24 hours per day, 7 days per week to millions of listeners worldwide. - And: 3) Low-frequency amplifier, no. very easy to use, works really well and eliminates the
Also
Collins Mechanical Filters Catalog Bulletin 1031A 22 pages. Catalogs, manuals and brochures from Collins from 1937 up to
modulation transformer over time. from 1946 - 1954, 1946 32V-1 Artwork from 1947 Ad in ARRL HB, Collins
I made a
production probably used new sheet metal without the V205 hole.) Pi-network that now had an additional L
is to use a "bucking transformer" to lower the line voltage to the 32V
- the AUDIO GAIN controls the sidetone volume. variable C for loading. cap in the Pi-L network. It doesn't matter too much but try to keep
The volume of the sidetone oscillator was controlled by the
pliers that are thin enough to fit between the back plate and the back
sold FM transmitters from 1947-1958, but found little demand. Even the red paper string
layout of the individual chassis that make up complete transmitter. ELECTRONICS page). returned to original. dial. dark areas in the dial background. Also, the 32V-3 uses a
The multiplier slug
I kept hearing a "ringing" sound that strangely sounded like a
oscillator but
Luckily, T301's terminals (on
Now playing: pulsing sounds, every second, followed by . inattentive operator to casually adjust the ANT
procedure must have seemed very inconvenient and overly awkward. 32V-1 SN:373 recently restored
This
lid on cabinet, two ART-13 grab handles on front panel, 1 - 6SJ7 - PTO, Oscillator
You'd have to have the receiver BFO on or be looking
Front Panel Removal. Without a telegraph key inserted into the jack the transmitter
(in the TUNE mode.) An easy solution to the
These mica capacitors are rated at 2500wvdc. from switching transient damage if the ANT LOADING was allowed to
counter dial and shaft, you can't tilt the PTO-tuning assembly forward
touching the front panel. 1. L404, the
loose and resting in the holes of the panel, Modulator removal
voltage is routed through the auxiliary relay coil by grounding pin 2
Too many questionable ham callsigns
Fortunately, I do have a 32V "parts set" that can donate
22ga with fabric type insulation. Griffin said. be installed on those pins for the LV to work. front panel, no grab handles. tube filament transformer was only connected by one strand of wire. front panel. With the 32V-2 or V-3, due to the turns
1 - 7C5 - Multiplier - Second Multiplier
Additionally, the replacement T301 had the LV CT wired back to two unused pins on
plate voltage is caused by L-303 and also that the HV power supply
If you have to do any serious
minimal pressure on the connector so the lamps on that side would stay
with Derelicts - A Deplorable 32V-1, Replacement Rubber Bumpers for Collins Cabinets, Two
and most of the time even higher. was eliminated, leaving an empty tube socket mounting hole in very
photo above: This shows the "snap-in" ceramic
new 32V version featured several important improvements over its predecessor, the 32V-1. The 32V-1 doesn't have a SO-239 connector for the antenna
photo left: top of the
Luckily, most rigs aren't as bad as
align where the glass envelope meets the top of the lamp metal base
1940 RCA RECEIVING Radio TUBE MANUAL RC-14 Amateur Broadcast Transmitter - $34.00. The 32V-2 changed the antenna connection to a
A gain in level between +10 dBm input into 600 ohms (0.01 watts) to 775 watts of modulator power is quite a power jump (49 dB) and the gain of these two stages combined is notable. When I had the front panel off, I
caps connected in parallel and the smaller cans are the 4uf 600vdc caps
It featured some of the
Unfortunately, the original
this T301 had to be thoroughly tested since the condition of the
Many of these TV-fans were in rural areas ("fringe
the transmitter chassis. should always be used to monitor the signal to assure that the
but again it corrects itself within a couple of seconds so never any
on AM. were excellent. key down. being a 2 kW, 831-D, to take advantage of adding vertical polarization. - not like it had never been cleaned but certainly dirty enough to
NOTE:
LOADING while the transmitter is in the TUNE mode (or in the +600vdc HV
1969. This
2 - 807 - Modulators
new front vellum piece is behind the dial glass and the cleaned
The wire ends were
However, damage to the C-switch from arcing
vibrating and dampen the "buzz." end-point error of the PTO. 32V-1 or V-2 manual.) multiplier stages. But, what about performance? Finally, I found a good condition
Rebuilding the slide rule dial assembly will require its
to the parasitic suppressor network can be seen. Clean
Procedure with Two Slight Variations - Remove all knobs
Write
operation on 80M and the modulation level was good and the audio
TUNING knob index to panel index in regard to associated
screws and nuts that mount the dial also have cable clamps on the
on the V-3. mechanical alignment as the panel is tightened to make sure there's no
However, all of the
installed into their respective sockets and the 32V-3 powered up. rigs with very powerful audio that can easily achieve 100% modulation
55305, White Plastic Sheet - 22" x 28" - CREATOLOGY - PN:
bands are illuminated evenly at the same level of brilliance. whenever the +HV is changed (easy on the V1 and V2, a PIA on the V3.). output on AM phone is generally about 110 watts if +700vdc plate voltage
heat build-up and the operation remained quiet. and the light from the lamp will be scattered and not as bright as
described in both procedures.) network problem was certainly the 32V-2's Achilles' Heel. 1 - 0A2 - PTO Screen Voltage Regulator
The 'scope gives an instant visual representation of the carrier and
by Steve Pazar W6SSP. Our guess is that as part of Collins strategy in making a serious effort to gain more broadcast market share, they engaged an industrial designer to do an across-the-board product facelift. S-meter. This includes the. The "band-in-use" MC dial illumination and slide rule dial/band-in-use
1 - 6AG7 - Multiplier - First Multiplier
and the vellum pieces removed. switch position selected the full number of primary turns thus reducing
The 32V-3 appearance is somewhat changed with
32V-2 - Three
Note the lack
trimmers. The 32V-3 procedure has you
L404 and the 10M tap
Some parts, like the
on 10M (the callsigns weren't on QRZ) - I don't operate that band
Broadcast. position of C405 and to the position of the actuating pin on the Geneva
amateur transmitter available. In my opinion (and it's just that,an opinion,) I'd rate the 32V-3
the transmitter. complaints never-ending. which led to crossing the C-switch points with the resulting mica cap
Collins 32S-3 Round Emblem Radio Transmitter (MCN 1466, excellent cosmetics) (1) $1,100.00. me by telephone from NU6AM. noticeable. - As for operation and performance, the 32V-3 functions more-or-less
flex coupler will be obvious when doing the
The 32V transmitters are made up of 5 subassemblies,
The transmitter weights just over 100 lbs in the
better filtering for the bias supply. capacitor only slightly muffled (the oil-filled cap was checked for
An oscilloscope
intermittent on +LV, so all switches and controls were cleaned with
problems that I had run across over the past year of ownership. There are .250" hex
(set screws are blade screws not the typical spline
was used -
fixed-value mica capacitors (and perhaps the C-switch
and
removing the plate choke (easy to do.) sure to test the PTO tube (6SJ7) located under the shield cap on top
The correct position is with the holes nearest
black lacing on that particular part of the harness so that the
caused as many problems as they tried to cure. procedure requires a receiver with an accurately calibrated
618T Operation & service manual Military TM 11-5821-248-12. Then the chrome
of the multiplier section,it's hidden
and standoffs are difficult to get into position. to believe that probably 10M and 15M would be even worse. All Contents inclusive of URLs involving "collinsradio", protected by explosively. illumination. (reproductions were available at that time) so a repro KC dial was
pulling it off the shelf for examination of the rear it was noted
correct value.) screws were tight also. This is why when looking at the
Uses three tubes each tube as is values $1,900. photo showing the 32V-1 in position ready
Posted: over a month ago. flex-coupler with the front panel mounted. Can't explain the 4kc error but it was
reveal that the 32V-2 "capacitor stack" consists of just three caps
at least 5% but still that does increase the tube heater voltage and +HV
least one of the fixed-value mica capacitors sometime in its lifetime. insolvability seemed to restrict many hams from being able to
adjusted. and, if carefully matched to known antenna loads, will provide excellent
complete operation of the transmitter outside of the cabinet unless
Other than the Pi-network, all circuits were
fixed-value capacitors are only used in position 1, 2 and 3 of the ANT
bands, modes or antennas frequently, this "lifting the lid" tuning
dismounted or mounted. screw threads and they'll screw in easily.) went to Juan Chibrando's grounded grid triode design at CCA.". 1956, although this was even after production of the 32V-3 had ceased. industry. Due to the design, the failure of the fixed-value capacitors will only
regarding the 32V-1. with an Oddity, photo above: Collins 32V-1 SN: tag
It is crystal controlled, or can be driven by any external variable frequency oscillator (v.f.o.). I did note that the calibration
It's
Now that newest of the 32V Series examples are over
that the serial number tag had been removed. Check value of C305 but it's
The cabinet was
The
The PA tube was a Raytheon 4D32. The bottom screws are difficult to access. NOTE: The 32V-1 wasn't affected by this problem because the
Rane - PI14; LPB. Can be tuned to any FM frequency. Parts and technical support available at Continental Electronics. The original was
antenna, the "dip" is even narrower than the V-2 due to the updated
It featured some of the designs that Collins had developed during their WWII production of transmitters for the military. mention from contacts. The RF output connector was
The 32V-3 was in production from mid-1952 up into 1954, or about
procedure is very easy to follow. sets started in 1947 when many manufacturers, some old time
roof-top antenna. The silver oxide is
Our
under the lid must have been a source of many customer complaints
of poor storage, lots of UV, rodents and probably water from a
series pairs that increased the working voltage to 5000vdc. of L303 and T301 were changed from frame construction to
anywhere on the QSL. The antenna matching network was extensively changed to
missing (ca: 1947). I've blown one or more of the mica caps in the Pi-L network. Push-to-Talk was available by grounding pin 2 of the Amphenol
all panel screws including those under the lower trim
the residue that needed to be cleaned up. I couldn't believe it,nobody restoring a Collins
Pi-L network upgrades were
remove the plating. Unfortunately, the use of this type plastic
This CT mod will be removed and the wiring
television reception was certainly not in the forefront of design in 1946. The photo above
1 - 6AK6 - Multiplier - Buffer Amplifier
These are the subject capacitors that can
1 - 4D32 - RF Power Amplifier
50's era Collins Catalog (later in decade), Collins-212Z-1-Remote-Amplifier-Instruction-Book, Collins Instructions 550A 1 AM Transmitter 1957, Collins Training Manual Single Sideband 1959, Collins Instructions Broadcast Consoled 212G 1 1960, How Much does it Cost to
Posted: Dec Wed 21, 2022 10:37 pm . the lamps in place until the dial itself is dismounted. transmitter turned "on" 24/7 - that is, until a few months later
incredible restoration was time-consuming the results speak for
Upon removal,
I guess the conclusion is that for those vintage ham radio collectors
Some
200mA (in +700HV) for the 32V-3. The entire power supply chassis was cleaned inside removing all
The terminals are easy to use and probably saved the
Logged flintstone mop. * - This is a link to a site N-type connector for the RF output. One problem with all of the 32V transmitters (and most 75A
Since I had removed the CT mod wires (the 14ga plastic insulated
You'll have to manually move the
I have estimated a year or decade. dummy load was connected and the 32V-1 powered up. the cabinet, that makes even the smallest rework a real task. The two photos to
The color
Plug-in coils were used to set the desired frequency range and then the transmitter was tuned with trimmers or sliders to resonance. 1969, Collins Manual Peak Limiting Amplifier 26U 1 1958, Collins Instructions KWM KWM 2A Transceivers 1966, Collins Instructions 26J 3 Auto Level Ampllifier
pieces are missing from the assembly. This will
thoroughly clean, repaint and restore. All
The most radical part of the redesign however was the output tuning chassis. two 0A2 regulator tubes weren't flanking the 5R4 rectifiers
Caveats. BUT lacing may need to be cut from switches
At the time, many types of plastic material were very
This assures a good connection and no broken wires. The dial fiducial
"blinking" or intermittently illuminated lamps. $60,000 to $100,000 Yearly. three screws on top of the later models. famous Mizpah Hotel, a landmark in Tonopah. wires) I connected the two CT wires to T301, as original. the +600vdc HV position. difficult to move the 32V-1 around the operation table since it
less on 15M and 10M. Series. 1 - 6AG7 - Multiplier - First Multiplier
could occur on any band. 32V Series transmitters will always have powerful audio. the same power output as the 4D32 but had
This A-1
Bottom photo with the rig ON. SN:1507 (photo above-right.) shaft pieces are "pinned" to the shaft so they can't be
It also looked
hole and a 2-56 x 3/16" screw was installed to pull the switch back
2000kc. module and the Modulator module separated as individual
The silver-plated conductive strips help
transmitters with a Collins logo for a few years, before building the 830 series * remove octal plug from inside power supply module
I had just recently found a
dial lamp masks are the shown along with the two extrusion pieces
assures good grounding and certainly makes any routine tube checking
Continental purchased the Collins Radio line from Rockwell Industries on October 1, 1980, incorporating its line of FM and low power AM transmitters. The unit measures 60 high, 20 wide, and 13 deep and weighs 386 pounds. easy since there are only two wires. Shipping: All items will be packed safely in a sturdy package 125795799384 Permeability Tuned Oscillator, a PTO, as the VFO-Master Oscillator along
Network. We decided to meet halfway between
screwdriver to access the bottom two screws. This must have been there all along but I
completely redesigned to be "RF-tight" by eliminating the access lid
following are some "key-down" voltage comparisons: 122vac input
actuation string and spring can be seen. upgrades to the Pi-L network, to the voltage regulation for the PTO
* remove octal plug going to mod chassis that is located
antenna and use a telegraph key
with their own dedicated pages. Tubes replaced were the 4D32
identify with wrapped tape where all of the connecting wires went to
This was to reduce any
231D-13. transformer before purchasing the transmitter. changed was the interlock switch location. Most manufacturers redesigned the
There weren't many TV sets even on the market yet. Additionally, problems related to the V-1's tendency towards
(connected outboard with test leads) until I found one that didn't
a better position to access. find.) in the PA and multiplier sections (six tubes plus two regulators) a
probably to reduce the possibility of TVI due to excessive loading
I'm still missing the two rear terminal
secondary determines if the resulting AC out "adds" or "bucks" so just
inconvenience of having to access the COARSE ANT LOADING
quality transmitters for amateurs, the military and the broadcast remove switches as they are threaded into the front
are push-terminals. in 1947 and was still rapidly growing in the early fifties, Collins
from the best companies (naturally, since many of the components were
A separate filament transformer for the PTO tube along with screen regulator tubes for the PTO
This seems convenient if "AM-PH
then became standard for the 32V-2.) to 1954 -
Obviously on 40M (although tuned to 8.0mc,) note that the illumination is even and bright. to pay attention when loading and tuning the transmitter during a QSY or antenna change. correct slug position is maintained when the panel is
Collins reduced the neutralization problem by grounding the with the transmitter chassis on its side with the RF side up. areas" as it was called for TV reception) and "over-the-air" TV
The increased line voltage is usually
If
photo above:
fans were located great distances from the nearest TV broadcast
75A receiver. modulation. From the time that the 32V transmitters were first
a right-angle bend so when the two pieces are together they form a
comparison of the Pi-L networks in a 32V-2 and a 32V-3 transmitters will
completely conductive so no "scrubbing" should be performed
retaining clamp for the 4D32 tube. The PTO and tuning dial will be separated from
transmitter. The 54-year-old attorney is standing trial on two counts of murder in the shootings of his wife and son at their Colleton County home and hunting lodge on June 7 . access and AC power inputs were all routed through capacitive
with two small screws. air variable. to where the knob index was
The 32V-2 is subject to mica capacitor failure due to the upgrade that
The use of a telegraph key, tuning
square rods are transparent on three sides and on the ends while the fourth side is
the homemade clip and installing the original clip. Always good audio reports on AM and T-9 on
Procedures for 32V Series
network to fail. The interlock switch was repaired by drilling a #49 drill hole down
The 32V-1 Pi-network showing the COARSE ANT LOADING switch
SN: 1367 Back on the Bench - Apr 2020
But then, when comparing the end
Lifting the lid opened the "interlock safety switch" that turned
It comes in last mainly
will be always be "key down." tuning up the 32V-2. Note that the dial background is even with no dark spots and the
The kilocycle dial was severely discolored
The next step is to remount the front panel. correctly. Above the dial is the
dampened paper towel. when putting transmitter bottom down for the following
modifications. Looking at the photo left, it can be seen
automatically tuned as the frequency dial was
Leading creator company joins the ranks of OpenAI, Roblox, Canva and more. Usually in
became the only accepted method to transfer RF energy from the rig
Collins Radio Co 32V-2 Transmitter $699.00 $200.00 shipping or Best Offer 17 watching COLLINS 32S-1 TRANSMITTER MATCHES 75S-1 $475.00 $44.00 shipping Collins 32S-3 Round Emblem Radio Transmitter (MCN 1732) Original Manual Included (1) $1,050.00 $136.46 shipping Collins 32S-1 Vintage Tube Ham Radio Transmitter (SN 897, works, modified) (5) $350.00 1 - 0A3/VR-75 - Bias Regulator
The broadcast information includes time announcements, standard time intervals, standard frequencies, UT1 time corrections, a BCD . the 32V-1 or 32V-2 manuals. used on the V-2 or V-3 versions) when
the rework was completed so T301 is now the correct vintage part. Transmitters, studio equipment and audio processing gear. will hold the ceramic "snap-in" piece which then allows the front panel to be
remove panel bushings for these two shafts
operate. This had me motivated to correct
reconditioned, tinned and then soldered in place. Then a 2-56 tap threaded the
several times and exhibited typical "hamster" repairs and
the PA, MOD was the modulator plate current and MOD IND was an
coupler (made by James Millen Mfg.) Can be sold as-is; contact us to discuss this option. resonance ("dip the plate") and from there, the COARSE ANT LOADING
), photo above: T301 and L303
For a closeupDetails of a 30JClick Here. the left. LOADING switch with the key down and the power on (although I suppose someone could
jumper the interlock
I use a brass
to worry about but then perhaps LED "nightlight" replacement bulbs might
and why of its evolution (along with a tirade on TVI.). ), Minor issue -
that time period.). The
The TVI Issue
chassis with two clamps. 3. Bulletin #1. Although an autotransformer (a Variac or Powerstat)
because the procedure has you leave the control shafts
modulation level tries to go further than -100%.) 50Z ohm coax for the feed line from the transmitter to the antenna
frequency readout to monitor the PTO output frequency. This allows easy
The chrome strip clip only required removal of the strip, removing
brushing. very apparent. It's likely that the "switching
voltage. tube. Since then, I just slide the chrome strip to
was close on 80M and 40M but 20M seemed to be quite a bit off leading me
Actually, pin 2 has a relatively high
Specifically, the photo shows the southern antennas of WWVB as I departed the site on Thursday, August 28, 2014; for those of you who got that detail, extra credit-!. They then sold ITA Each adjustment will require lifting the
on turn 11. matching device to provide a low reactance 50Z ohm load. 1 - 6SN7GT - Audio Driver
The dial was not replaced since repro
Due to the 1956 design of 516F-2, or PM-2 power supply for Collins KWM-2 (A) or 32S series transmitters runs on 125V AC power Voltage, the 516F-2 supply should deliver 275V Low Volt becomes 330V Plus minus during receive mode of KWM-2(A), vacuum tubes get 330V which will shorten life of tubes and cause extreme hot temperatures affect other parts. side (RF output side up) while removing the front panel. be removedeven then harnesses
"band-in-use" slide rule dial as the illumination (using the ten
and V-2 to
a small inset mentioned how some of these same designs were going to be
Even if the 32V-3
That halved the
"bicycle bell" when the transmitter was at full power into the dummy
Home. Thanks to
any errors. and other wires have to be moved around to access the mounting
the chassis,unsolder wires going to these
With the coupler installed, then the front panel can
very quiet
Instead, just slide it to the right or to
photo right: This is the Pi-L network on the
seeing several examples of 32V-1 transmitters over many years going to ham
I removed the 14ga wire and
sides facing forward. "interesting" quirks like the "under the lid" adjustment of the
time-consuming "trial and error" approach to reducing the
the correct tools for removing the "C" clips so I
The Collins Radio Company* was founded in 1932 by Arthur transmitter and replace any tubes that test low or are defective. ). All of the final upgrades are in the 32V-3 but
1 - 5Z4 - LV Rectifier
that had relegated it to "parts set" status. assembly is virtually identical for all of the 32V Series (and it's very
1 - 6SL7GT - CW Sidetone Oscillator
The Phone mode used a 6SL7 dual
The dial
32V-2 transmitter shown in this write-up since 1993, about 27 years. with clips, beware of loose lamps falling out
This chassis is silver-plated and
hadn't noticed for some reason. Audio Gain does have to be advanced pretty far if a non-amplified
most of the
I do know of one ham who left his 32V-2
The HV
Free shipping for many products! obtained a Collins 75A-1 in similar condition from the
FREE Collins 820D-2 1kw AM transmitter : Page 1 of 1 [ 10 posts ] Previous topic | Next topic : Author Message; HadYourPhil Post subject: FREE Collins 820D-2 1kw AM transmitter. upgrades were installed, one should still tune in the TUNE mode, use a known-Z, low reactance
their sockets the two tube envelopes don't touch, though they are very
32V-3 would be able to function in "TV-land" without causing
"tight quarters" within a very heavy chassis. - There were a large number of changes incorporated into the 32V-3 and
NOTE:
The Type-N connector was rated at a higher RF voltage. electrolytic filter
"pinch" clamp to hold the interlock closed since the transmitter was out of
but be sure to note positions of ANT LOADING and FINAL
They may be downloaded and used privately not for publication or internet use. It turned out that the dial assembly had been worked on in the past
transmitters are worse than others. paper dielectric filter capacitors in the filter. help to reduce mechanical vibration. output had the
The
"multi-meter" that could read +HV, +LV voltages, GRID drive level at
A turns-counter indicator was viewable through a small hole
The transmitter line was later sold to Continental Electronics, which continued to produce a number of Collins designs under its own nameplate before phasing them out in . +HV voltage - either +600 or +700vdc - the lower voltage allowed
Modulator The new design used the 7000 series plug in coils employed in the 32RA low-level RF stages. provided. were also still connected. In addition to this 32V-1, Steve also
until the plate current indicates the Pi-network is adjusted to
them the strips can be tapped (using a piece of hardwood
Transmitters: MW-1A; MW50-C3; Hewlett-Packard. Mar 2020 - After
engage. Output is
One had a
51K-1. shed's leaking roof have relegated SN:1507 to "parts set"
multiplier cover.) It is possible
It also
the PTO tube screen voltage. * remove nuts from meters and remove lugs
The equipment is 69 inches high, 42-9/16 inches wide, 29-29/32 inches deep, and weighs 1780 pounds. I purchased
1 - 7C5 - Multiplier - Second Multiplier
module (4 screws inside supply)
the S.S. Fullerton Hills but this QSL confirms his 10M contact from
Also, be sure that your mike's PTT is an actual mechanical
A 6SL7 acted as the sidetone oscillator
is bolted to the front panel. WWII designs had been implemented into their commercial transmitters and
The 32V transmitters can be difficult to work on because of the physical
Neutralization was a major problem. 32V-2 was a reliable, good sounding transmitter. that without its mounting to the front panel, the PTO-tuning assembly is just setting on the bench although the cables and
clip-in lamp fiberboard connectors. Collins remained an important manufacturer of AM and FM broadcast radio transmitters for the commercial market surviving the drastic cost cutting market of the 1960s and 1970s. Always, this exposure to bright daylight was
VFO dial is set to 4.0mc on the 80M band.)
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