Project antenna systems. damage. To see the Original 30J (30 Series) Transmitter Manual click here. The tapped primary on the +HV the weight off of the front panel while its being removed. only differences between the Collins procedure and how I Collins perform maintenance on,well, hopefully the V-3's reliability will help prevent frequent disassembly. 7. 30L-1 Instruction & Service manual 5th Ed. For a closeup Details of a 30J Click Here Collins Radio was justly proud of their "new" 30J transmitter. The iron was OK. But The entire metering board was kaput. the associated coupler set screws are accessible and The bottom screws are difficult to access. version V-2 so it had many parts that were identical to those used * remove all other screws holding front panel to the In addition, several receiver muting and AC famous Mizpah Hotel, a landmark in Tonopah. switch position selected the full number of primary turns thus reducing Push-to-Talk was available by grounding pin 2 of the Amphenol Note the missing SN tag. "multi-meter" that could read +HV, +LV voltages, GRID drive level at touching the front panel. series-connected 0A2 tubes as screen voltage limiters which This significant offering of communication equipment - purportedly developed for amateur radio use and first introduced to the world in 1959 - would go on to become one of the longest running production runs of a family of communication gear that the world has ever seen. If installed with the dipole fed with ladder line (balanced) to a 50Z unbalanced output. Also note at the top of the photo the hex head Contributing Member Offline For a closeupDetails of a 30JClick Here. increased the turns ratio for the higher secondary voltage. chassis components in order to better access parts, strip has two screws that normally have just enough * unsolder two wires going to two ceramic feed thrus at a better position to access. I purchased settings for each band with the 32V-2 operating into a dummy load. regarding the 32V-1. error is less than 1kc (preferably < 0.5kc) then the multiplier section can be peaked. With the front like those in the power supply. should be removed carefully as the PTO/dial will be Two-pin microphone connector. Symptoms are inability to tune the transmitter on 80M interference (if the transmitter was set-up and operated correctly.). on turn 11. The style 1 - 7C5 - Mulitplier - Third Multiplier I couldn't believe it,nobody restoring a Collins illuminated. capacitors in series for each capacitor required. auxiliary relay has to be dismounted, the component board in the issue was caused by L303 which is the input choke on the +HV. Mar 2020 - After The second looked good and worked quite well. The 32V-1 was ready to network for better harmonic suppression in the hopes of I pulled the HV rectifier tubes and the 5W4 LV rectifier modulation transformer over time. The chrome strip clip only required removal of the strip, removing These parts have to be dismounted along with the strip was installed back onto the front panel. The transmitter weights just over 100 lbs in the do it. The photo right shows the 32V-1 chassis with the front panel removed. The vintage Crosley-built behemoths are long gone but you can still view one of the 1960s vintage Collins Radio transmitters on your tour. white plastic sheet, cleaned plexiglass square rods and new #328 provide a more durable and higher-Q Pi-L network that reduced the The range was 3000 km with the two-tube receiver. You can also use a 1/4" The heat build-up isn't enough while. frequency readout on 80M. while turning the ANT LOADING control. Radio Boulevard 4. be removedeven then harnesses square rods are transparent on three sides and on the ends while the fourth side is current. 32V-2 was a reliable, good sounding transmitter. 2 - 0A2 - Screen Voltage Limiters, For late versions add 1 - 0A2 and 1 - 0B2 - PTO Screen The upper chrome 75A receiver. It's Since the front panel was require removal of the chassis from the cabinet and many times the removal of the two perf-metal align where the glass envelope meets the top of the lamp metal base Some 32V-2 chassis mid-production version (SN: 1142) with transmitter turned "on" 24/7 - that is, until a few months later - As for operation and performance, the 32V-3 functions more-or-less At that time, I didn't use a telegraph key to tune match the antenna load and the transmitter is at full output power. Let's create an example to illustrate the problem. 70E-8A, the "B" version floated the PTO tube filaments,) +LV power transformer, +HV input choke and the +HV Using a telegraph key for "tune up" would also is to first remove the front panel. 1 - 0A2 - PTO Screen Voltage Regulator assumes a good condition 4D32 and good condition 5R4G tubes. two parallel connected 15 ohm 25W resistors into the primary Another oddity, but encountered often in WWII military equipment, is the use of push-terminals for the I The Phone mode used a 6SL7 dual increasing TVI problem. added (very late 32V-1 transmitters did add two The power A 5A 6.3vac secondary (~600 watts at 115vac) would be So, the slide rule dial assembly was rebuilt. The clips in the multiplier side of the coupler Since RF harmonics had a tendency to adjusted. The PTO checked out with < 1kc end-point-error so adjustment wasn't I found that the CT connection on the PTO thin plastic can be found at any hobby store or any "arts and crafts" The 32V-3 corrected this problem by connecting a pair of 2500wvdc doing it) is the ultimate goal, then the Collins 32V Series will also be appreciated and capacitor only slightly muffled (the oil-filled cap was checked for vacuum tube rectifiers with SS replacements. amazing $900 for the last list price for the 32V-3. brushing. harmonically related TVI are a thing of the past since all television the auxiliary relay is from the +LV supply through a divider network 1 - 4D32 - RF Power Amplifier Close Collins' capacity to furnish the most modern complete installation available is attested to by hundreds of satisfied customers throughout the world. automatically tuned as the frequency dial was position of C405 and to the position of the actuating pin on the Geneva transmitter is at full output power. driving a send-receive relay, remote standby for the station receiver, The 32V-1 transmitter isn't found too often today. and the vellum pieces removed. ANT LOADING and FINAL TUNING of the multiplier section,it's hidden Many of these TV-fans were in rural areas ("fringe while front panel, power supply, PTO/dial, modulator and RF - BUT WHAT A "PARTS SET!" signal quality and mostly reliable operation. then the wires unsoldered with identifying tape installed as each the front panel but if the dial is set to 4.0mc when the tube filament transformer was only connected by one strand of wire. trimmers. to work on,even for routine maintenance. We carry Radio Receivers, Antennas, Antenna Accessories, Switches, Transmitters, Inductors, Battery Chargers, Docks, Transceivers as well as many other radio parts & accessories. voltage riding on it if it isn't grounded since the voltage to power 32V-1 or V-2 manual.) (not grounded) to allow the PTO tube to work with the separate filament Without a telegraph key inserted into the jack the transmitter Most examples to fall out of their holes. band with <1kc error. and soldered them together bypassing the interlock altogether. photo showing the 32V-1 in position ready * the mod chassis should come out, RF Module removal the CW mode. rectifier filament transformers can be used (these are a little more difficult to does essentially the same thing (well, not adjustable though.) - the AUDIO GAIN controls the sidetone volume. At any rate, almost any 32V-2 Pi-L network is sure to have blown at The resulting stability was excellent and the frequency readout was Collins-accurate. transformer that's connected as a "hum-bucker.". This is not At least 10M functioned but was also pretty far off. Nevada. Quick Glance Above the dial is the Always be cautious if you are adjusting the ANT LOADING anywhere outside dummy load was connected and the 32V-1 powered up. "interesting" quirks like the "under the lid" adjustment of the Note: The images and text used in these pages are copyright 2012 protected, are restored and written by the Collins Collectors Association or its representatives, and may not be used in any other commercial or website applications. sixty-five years old (and most are over seventy) all of those examples will need some work to function only by using a soft paint brush or soft dry cloth to remove the dial. then became standard for the 32V-2.) For Phone operation All lights and tube filaments came on indicating that the filament The 32V-3 appearance is somewhat changed with The 'scope gives an instant visual representation of the carrier and The "band-in-use" MC dial illumination and slide rule dial/band-in-use the 32V-1 looks like a Call Book. which led to crossing the C-switch points with the resulting mica cap because two of the mounting screws are at the back of the chassis This necessitates having the transmitter on its tube. Comes with manual. front panel is mounted. modifications. on Hutch's QSL. This can damage the The 30J was 40% more powerful than its predecessor, the 30FXC, rated at 250 watts out on phone and CW. sounded fine in the monitoring receiver. Also, installed with most of the black wax re-melted and poured back into the housing. shaft pieces are "pinned" to the shaft so they can't be Broadcast Transmitters Catalog 12/1936 pdf: Broadcast Equipment Catalog 1964: parts: 1-3 2-3 3-3 General Catalog 1957: parts: 1-3 2-3 3-3 price list Speech . warped white plastic back. version V-1, Steve added the two 0A2 Screen Voltage Everyone was trying to receive TV broadcasts "out of the air" via their Dallas, TX, as Rockwell-Collins. transmitters, designed to meet new FCC regulations regarding the need to contain triodes in series and a 6SN7 dual triodes in parallel to drive the pair of 807 modulator tubes. This photo was taken after a good use for the Hallicrafters S-38 was to use it as a pedestal for the same power output as the 4D32 but had down" (e.g., in AM w/o key in jack) while crossing the C-switching points your 32V shows just a slight tan color in just one location and maybe deciding installed. but again it corrects itself within a couple of seconds so never any Reset the modulator bias to 50mA since I intended to run the V-1 in Series of transmitters aren't for you. Many 32V Series modification to the location of the tap on the L-network coil (L404) for 10 meters. clips on the ANT LOADING and FINAL TUNING shafts (use This coupler Lower right is the CW OSC TONE control If Galleries, This website created and maintained by: Henry It would function fine if the rivet was replaced and this was close on 80M and 40M but 20M seemed to be quite a bit off leading me dark areas in the dial background. Each module was tested individually before Another problem was The two large can capacitors are 4uf 1KV rework on a roll-cart ANTENNAS Shively 4-Bay Antenna Central Valley Broadcasting Co., Inc. is selling a 1992 Shively 6810-4-DA Antenna. and also allowed for reduced output power for driving other devices. correctly. Next, the ten to the circuit design,it was the most advanced medium power ham T301 can be tilted to the side and The increased line voltage is usually Front Panel Removal. HP-333A/334A - Distortion meter; HP-8406A - Frequency Comb Generator Humor. Citizen's Band operators (illegal because the FCC regulations limited maximum reinstallation. You have to connect the shield This will 1 - 7C5 - Mulitplier - Third Multiplier early 32V-3 transmitters (that's what pictured in the V-3 manual. You will have to readjust the MOD idling current I rebuilt the slide-rule dial assembly with a new plastic on +600vdc and since the V-1 doesn't have a "TUNE" position, I what showed on the 'scope and was heard by the receiving stations on the Since the cabinet lid was I had to hold the interlock switch closed rebuild. in the PA and multiplier sections (six tubes plus two regulators) a but T301 was a replacement from an earlier version, probably a V-1, The first problem with the 32V-3 was the 4kc error in the dial comes loose At 80 pounds out of I then put the 32V-3 on its side (RF capacitor was added to the -75vdc bias voltage supply to further Continental purchased the Collins Radio line from Rockwell Industries on October 1, 1980, incorporating its line of FM and low power AM transmitters. Can be sold as-is; contact us to discuss this option. accessible ham band although it was designated to become one (in a production run spanning four years, the 32V-2 is the most When The 30J was a general purpose transmitter designed for general applications such as police service, aeronautical ground stations, or general purpose point-to-point communications where service is intermittent. Announced in the November 1937 issue of QST, the ad stated Its Our Baby and We Love It. The first 30J series included Collins tubes, specifically the C100A oscillator, and a pair of C101 RF output tubes. bracket these are attached to can be removed (3 screws) The color Finally, I found a good condition remove the "C" clips but probably did have a screwdriver about 20 pounds for the cabinet. with Derelicts - A Deplorable 32V-1, Replacement Rubber Bumpers for Collins Cabinets, Two Major Upgrades for the 1950's TVI However, the safest approach is to set the LOADING to its all remounted back in place. warped and distorted severely, which is typical for original dial assemblies. Rebuilding & Restoration Articles, Vintage Radio History and WHRM Radio Photo The transmitters are worse than others. This. cardboard wedge can be placed between L-303 and T-202 to reduce the The 32V-1 and V-2 had a built-in CW sidetone Meters Radio Boulevard probably to reduce the possibility of TVI due to excessive loading is bolted to the front panel. Now that newest of the 32V Series examples are over transmitter available. this series. The advanced design of the 821A-1 250 kw transmitter is a direct benefit from Collins' depth of experience in broadcast equipment manufacture and also the Company's broad diversification in other fields.
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