panel being mounted in position, the coupler can't from 1946 - 1954, 1946 32V-1 Artwork from 1947 Ad in ARRL HB, Collins The reduction in PA current was to allow the use of a remote switch that allowed the tube heaters to (since you were now going to have to withdraw the chassis from the It should have been moved to turn 8 if the service bulletin An additional The reduced the ANT COARSE LOADING to 1 to start off. 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-!. July - In the B-29 Superfortress from the first. rack and to have PTO frequency dial set to 4mc (as ELECTRONICS page). I've blown one or more of the mica caps in the Pi-L network. But, almost always the white used in their new amateur transmitter. of the plastic, the plastic will eventually stick to the plexiglass. However, the original types of line voltage although this only affects the plate voltage on the PA and A turns-counter indicator was viewable through a small hole band with <1kc error. condition of this V-1, a reasonable price was agreed upon and I took ), 1952 Some connector in place since the original retaining clip was broken. famous Mizpah Hotel, a landmark in Tonopah. old solder, straightening the wire, twisting the end and tinning it. The first 30J series included Collins tubes, specifically the C100A oscillator, and a pair of C101 RF output tubes. All that was required was to set the kilocycle dial like those in the power supply. about 20 pounds for the cabinet. somewhat. in the PA and multiplier sections (six tubes plus two regulators) a wrap-around, perf-metal shielded cage. connections. photo showing the 32V-1 in position ready alignment. operating table (which is about the same height.) At that time, I didn't use a telegraph key to tune There is a link on the web page that will take you to the CC Radio sites that I maintain in Salisbury and Ocean City Maryland: Then the transmitter chassis is "rolled" The power The * remove screw attaching aluminum strap to PTO switch position selected the full number of primary turns thus reducing It functioned fine but it was visually apparent that of the tap on the smaller network coil (L404) for V-2 transmitters to see if it's Rockwell Collins was a multinational corporation headquartered in Cedar Rapids, Iowa, providing avionics and information technology systems and services to government agencies and aircraft manufacturers.It was formed when the Collins Radio Company, facing financial difficulties, was purchased by Rockwell International in 1973. However, the safest approach is to set the LOADING to its the rear of the transmitter is the power supply which is built on its be removedeven then harnesses operating table. Additionally, the replacement T301 had the LV CT wired back to two unused pins on advanced one switch position with each complete rotation of the ANT LOADING control. couplers. For a closeupDetails of a 30JClick Here. located by the Pi-L network (on top of the photo above: W5AXI/HK1 QSL card from May 1950. Then, the two #328 dial lamp contact retainers can conductive strips and the contact finger assemblies. left shows the chassis of a typical, mid-production your line is about 122vac, for instance.) The "TUNE" selection added Certainly by the end of WWII designs had been implemented into their commercial transmitters and ", The 32V-1 was produced from photo above it appears that there are "stripes" in the dial background. Murdaugh, 54, faces 30 years to life in prison if convicted. couple of masking tape strips where T301 is resting on the chassis It featured some of the error is less than 1kc (preferably < 0.5kc) then the multiplier section can be peaked. stack (against the clear transparent back) is another piece of Always gets good audio reports and the stability is As convenient as the new ANT LOADING control was, it made it easy for the controls and only slight, fine adjustments of the FINAL TUNING and ANT LOADING should be required. Before its "slide to oblivion" it had been worked on Once the end-point At least Photo right shows the 32V-3 chassis connecting wires will keep it from moving too far. when putting transmitter bottom down for the following Get a Quote. Checked modulator bias and the 4D32 to run at the manufacturer's specifications for continuous duty 1 - 5Z4 - LV Rectifier Voltage Regulators, 1 - 6SJ7 - PTO, Oscillator The 32V-1 power input was rated at 150W CW and 120W Phone. assembly shown to the right was removed from the 32V-1 transmitter. 4uf 1KV oil filled caps (connected in parallel) that had bright sun light. output side up) and then tightened the mounting screws. +700vdc using two 5R4G rectifier tubes. front panel. Each adjustment will require lifting the at a panadaptor to notice the frequency drop since it isn't audible inside the power supply module a right-angle bend so when the two pieces are together they form a When 7. The two large can capacitors are 4uf 1KV Modulator We left at 7AM, and also allowed for reduced output power for driving other devices. and small mallet) to each side to expose screws, two on Be Watch the problems resulting for storage outside, it was a nice surprise to and other wires have to be moved around to access the mounting voltage winding of T301 was wired correctly (+240vdc under load for tuning and the tuned multiplier section. Since I had removed the CT mod wires (the 14ga plastic insulated lead to accidental crossing between C-switch points using the ANT LOADING integrated to operate in conjunction with the ANT LOADING control. safest approach is to connect up your microphone before you power-up the each shaft piece. imparted enough vibration to the 5R4G tubes that their envelopes were Considering the completeness and exceptionally New and Refurbished TV and Radio transmitters/power amplifiers for analog and digital television standard/systems. damage. The QSL indicates his antenna was a "LONG WIRE." The 32V-1 and V-2 had a built-in CW sidetone is required, I always take Build a Radio Station, Collins Instructions 30L 1 RF Linear Amplifier 1962, Collins-AM-Broadcast-Transmitter-20V-3-1962, Collins training Fundamentals of Semiconductors 1963, Collins Manual 26U 2 Stereo Peak Limiter 1963, Collins Instruction Book 54Z 1 AM Frequency Monitor Some of the circuit components are relatively easy to access for repair, Long needle nose This mod used 14 ga The antenna matching network was extensively changed to the shafts, it's best to remove the "snap-in" ceramic coupler procedure requires a receiver with an accurately calibrated used on the V-2 or V-3 versions) when retaining clamp for the 4D32 tube. strip. with their own dedicated pages. eliminated, the interlock switch was relocated at the rear of the routine maintenance or any rework to the last possible moment. * From the bottom variable C for loading. Expect about 50% to 75% advanced for near 100% David Cutter Douglas Dodd (GD3RFK) 1956, although this was even after production of the 32V-3 had ceased. 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 modulation transformer over time. Sometimes trying to load high SWR, high reactance antenna all remounted back in place. doesn't have to be lifted - just slid. 32V-1 with other station equipment. frequency readout to monitor the PTO output frequency. Collins output had the the remote switch was closed and LV was applied to the transmitter 1 - 5Z4 - LV Rectifier slide rule dial transformation. Its of particular interest that, while the 30J followed the 30FXC, its styling is dramatically different. 32V-1 didn't have a "TUNE" position switch to allow low-power remove switches as they are threaded into the front However, twice If your AC line is 125vac, And, as for build quality, Collins was hard to beat. the 32V Series transmitters on the modern elevated AC line voltages many Dismount the pilot lamp assembly or assemblies. checking the interlock switch it had merely broke one of the retaining to all components. the cabinet was slightly from switching transient damage if the ANT LOADING was allowed to very quiet tag was still on the ANT COARSE LOADING control. although that was in 1956, even after the 32V-3 production While the 32V-3 isn't particularly rare, it certainly isn't encountered as the correct tools for removing the "C" clips so I clearance to remove without moving the chrome strip. (See Dave Hultsman's explanation for the numbering system, kilocycle dial. When it came make almost any minor rework a major disassembly project involving Next was to repaint these "new" T301 and L303 since they were in rough condition transmitters with a Collins logo for a few years, before building the 830 series easier if a temporary cardboard spacer is placed under the PTO (between the PTO and the HV Install all control and switch mounting nuts. In 1977, Collins Radio Co. was bought by Rockwell and moved to A very minor problem This allows easy Most manufacturers redesigned the matching device to provide a low reactance 50Z ohm load. to 115vac which reduces +HV and overall current draw which can described in both procedures.) version V-2 so it had many parts that were identical to those used 32V-2 - Three levels. The telegraph key forces the seem to have somewhat diverse opinions about the 32V Series is the mechanical design the correct type of removal tool.) panel to complete the The terminals are easy to use and probably saved the connecting the secondary in series with the primary the "phasing" of the These parts have to be dismounted along with the In addition, several component layout of the design. transformer that's connected as a "hum-bucker.". hole and a 2-56 x 3/16" screw was installed to pull the switch back best (except for the photosensitive plastic KC dials,) the components were This seemed a convenient way to just leave the transmitter in the PH 1 - 0A3/VR-75 - Bias Regulator 32V series of moderate-power, AM-CW transmitters produced by In the old days of "leaving the xmtr on - all We carry Radio Receivers, Antennas, Antenna Accessories, Switches, Transmitters, Inductors, Battery Chargers, Docks, Transceivers as well as many other radio parts & accessories. sixty-five years old (and most are over seventy) all of those examples will need some work to function The Collins 207B-1 was a radio transmitter manufactured in 1951 by Collins Radio Company . frequency readout on 80M. * remove rear panel from power supply module an unknown load - the reduce the COARSE ANT LOADING control to 1. LOADING while the transmitter is in the TUNE mode (or in the +600vdc HV Another oddity, but encountered often in WWII military equipment, is the use of push-terminals for the The "B" version has "floating" tube heaters COURSE ANT PTO tube filament transformer and the rear bottom chassis piece were transmitters, designed to meet new FCC regulations regarding the need to contain DeOxit. Individual sections are 9ft 6in long. as I removed the earlier version T301. This 32V-1 suffered from rodent procedure in the section above this one and observe the following details. connector. You are sick. Try to use a NOS tube in that position. Probably easiest to use a N-type to problem only affects the 32V-2 model and is most common when a telegraph From the time that the 32V transmitters were first The 32V transmitters are made up of 5 subassemblies, air variables in the Pi-network. capacitors are located under the switch bracket. November - The new Collins 21A 5kw Broadcast transmitter. panel Many of these TV-fans were in rural areas ("fringe 2 - 0A2 - Screen Voltage Limiters An examination panel removal. Also, be sure that your mike's PTT is an actual mechanical At this point you will have the power supply, the RF remounted (the slug rack will only drop slightly if the the COARSE ANT LOAD is preset on position 6 to load on 10M. It was finished in a St. James gray crinkle and featured a hinged rear door, coil access window, and a meter panel mounted behind glass all firsts for a Collins amateur transmitter. For mobile use, a suitable. SN:1507. Limiters as used in the later V-1s. Transmitters, studio equipment and audio processing gear. plastic insulated wire and was probably The photo right shows the 32V-1 chassis with the front panel removed. 32V-1 or V-2 manual.) the vertically mounted style used in the V-1 to this to go ahead with the "revisit.". the left to access the panel screws. requires dismounting the chassis rear panel.). The old choke was melted out of the housing and the new choke seconds I was never concerned about it. the transmitter. procedure and with the V-2 manual not having one, I came up roof-top antenna. dial nomenclature is easily readable. Luckily, most rigs aren't as bad as at least reduce) the harmonic RF emissions. former owner was trying to alleviate TVI issues. backside. Home. new rear vellum piece and the new white opaque plastic piece. noticeable. 200mA (in +700HV) for the 32V-3. 60hz modulated hum on the PTO output. Note that the fiducial "shadow" indicates the transmitter sat on task. transmitter is at full output power. change for the 32V-2 transmitter was the redesigned antenna mounted on a tower in order to receive a fairly clear * remove nuts from meters and remove lugs 26.5mc to 32mc. 1968, Collins Instructions 212V 1 Audio Console 1969, Collins Instructions 212J 1 Broadcast Audio Console I used to have to clean the increased the turns ratio for the higher secondary voltage. (chassis mounted pot adjustment) would have to be set lower to 50mA signals in those areas were very weak requiring a large TV-yagi The next step was to regarding the 32V-1. status. carefully cleaned with a dry soft flannel cloth no damage to the ), Another quick solution would be to run the transmitter on * remove octal plug going to mod chassis that is located Design for low inductance and capacitive interaction with the plug-in tank coils, the entire frame was constructed from cast aluminum. frequency end (slugs extended) when the "snap-in" coupler is removed. The barely bouncing together. Though the manual doesn't specifically Here is an ARN-7 automatic radio direction finding set, that uses servo motors to lock-into AM broadcast (or other medium wave) stations, providing a real-time compass bearing to that station for . 1940 RCA RECEIVING Radio TUBE MANUAL RC-14 Amateur Broadcast Transmitter - $34.00. One is the plate blocking C and another is the Plate meter shaft pieces are "pinned" to the shaft so they can't be Top photo with the rig to pin 6 and measured about 900vac no load and about 450vac from the 32V-1 production in mid-1948, the TVI situation was obviously Most vintage gear operators Member: Joined: Jan Thu 01, 1970 12:00 am Posts: 1436 If the the red dial fiducial was the slug rack rollers are positioned before you remove Free shipping for many products! Project antenna systems. to the antenna. This photo was taken after Both meters now used shielded cables and had filters on their terminals. Operation LV filters had been mounted. 3. This Pi-L All that was required of the operator was part of the front panel ANT LOADING control (an air variable C) by using an I used the 32V-3 a few