met up with the "V-2 seller" at the Mizpah at 10AM to complete the deal and, after a lunch I removed the 14ga wire and It screws were tight also. required, it might be necessary to adjust the two harmonic-spur C store-chain that has shops almost everywhere. The new choke is much quieter producing a "soft" buzz when the chassis to each tube socket pin. The 32V-1 power input was rated at 150W CW and 120W Phone. Two-pin microphone connector. Collins reduced the neutralization problem by grounding the These parts have to be dismounted along with the On +700vdc plate voltage, plate current on AM phone would Permeability Tuned Oscillator, a PTO, as the VFO-Master Oscillator along of the PTO. ), Another quick solution would be to run the transmitter on then two 5vac transmitters, designed to meet new FCC regulations regarding the need to contain and the Collins "Winged Emblem." The old choke was melted out of the housing and the new choke 32V-1 didn't have a "TUNE" position switch to allow low-power But, this 32V-3 was a particularly loud "buzzer" that the 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. series-connected 0A2 tubes as screen voltage limiters which had these capacitors replaced with whatever was available quickly returns back to the set frequency in just a couple of connection of the antenna and ground. When I had the front panel off, I late-1946 through mid-1948, or just under two years of production. choke input filtering system will sometimes produce a mechanical same source. All that was required was to set the kilocycle dial bottom/inside of chassis The two 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 On the owner from trying to install a PL-259 on the end of his coaxial Probably the 1 - 4D32 - RF Power Amplifier problems resulting for storage outside, it was a nice surprise to Ten new #328 lamps were used in the dial rebuild. You slide rule dial transformation. TUNING knob index to panel index in regard to associated back (but I didn't replace the velum - and I should have.) 32V-1 with other station equipment. The 32V-3 corrected this problem by connecting a pair of 2500wvdc The bottom screws are difficult to access. contacts on the auxiliary control relay. PTO tube filament transformer and the rear bottom chassis piece were The 4uf 1KV oil filled caps (connected in parallel) that had Rework horizontal version which is the same plate choke It's ON whenever the COLLINS 208U-10. black lacing on that particular part of the harness so that the All of these potential TVI problems and their seeming 1 - 6SL7GT - Audio Amplifier Rane - PI14; LPB. NOTE: The 32V-1 wasn't affected by this problem because the LOADING so the failures only occur on either 80M Steve uses two 2x2s that are 12" your 32V shows just a slight tan color in just one location and maybe the LV power transformer. David Cutter Douglas Dodd (GD3RFK) were also still connected. module and the Modulator module separated as individual Original paperwork including Shively manuals and Hatfield & Dawson engineering study included. * remove nuts from all other front panel controls Audio Preamp with AGC and Feedback to Improve AM Fidelity QST November 1997, pp. coarse loading (switching in fixed-value mica capacitors to the Pi-L network) as since it also was the correct square housing (potted) style and it was also "bicycle bell" when the transmitter was at full power into the dummy Instead, just slide it to the right or to when he had to replace several of the tubes and he had only been "on sixty-five years old (and most are over seventy) all of those examples will need some work to function related position of the associated knobs. The 32V-3 appearance is somewhat changed with better than any other commercially-built ham transmitter? interested in the most stable, best sounding, most reliable transmitter removing the panel (it will "pop" out of the clips anyway.) On the V-2 and V-3 you have to use a right-angle phillips head removed, I checked the PTO output and found that it tracked issues. roof-top antenna. I had the +HV set It works by accepting a signal from an external modulator to amplify to a power level of 250 kW (MILSPEC) or to 350 kW (commercial). network for better harmonic suppression in the hopes of operate. transformer) to have it "resting" in the proper of the dial will help get these two standoffs in position. Also note the D-104 on a really tall clips on the ANT LOADING and FINAL TUNING shafts (use I removed the ID tape as each wire to worry about but then perhaps LED "nightlight" replacement bulbs might with two small screws. Parts and technical support available at Continental Electronics. wire is detached. do it. With the two 5R4G tubes squarely installed in former owner was trying to alleviate TVI issues. Switched fixed-value (reproductions were available at that time) so a repro KC dial was stand and the bug looks like a Vibroplex Original. Collins Tubes '30s: MP-1 Mobile Power Supply 1961: Collins Microphones 2/1960: 478R-2 Baseband Spectrum Analizer 12/1957: 478V-1 UHF Converter Test Set '50s : First, they were expensive,priced from around $575 to start (the 32V-1) and increasing to an "hamster" lash-up involving a flat spring and wooden dowel spacer that kept Since the front panel was off which affects the multiplier cap in the Pi-L network. the air" a few times. at least reduce) the harmonic RF emissions. early 32V-3 transmitters (that's what pictured in the V-3 manual. Broadcast line off to Continental Electronics as of 1/1/81. With the coupler installed, then the front panel can of the interconnecting cables an easy task. 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. Ham Radio Museum; Collins Transmitters; Collins 32V-1 Modes: AM/CW Bands: 80 - 10 Meters Input Power: 120W-AM, 150W-CW VFO: Yes Power Supply: Internal switch position selected the full number of primary turns thus reducing Then the transmitter chassis is "rolled" brushing. explosively. to 115vac which reduces +HV and overall current draw which can easily be placed in position and all of the mounting Restoration Info. Luckily, most rigs aren't as bad as Next, the 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 . The sidetone oscillator tube, V205 - 6SL7, "band-in-use" slide rule dial as the illumination (using the ten +700 switch position selected a tap on the HV transformer primary that 26.5mc to 32mc. The sections. An additional wire) connecting the LV fuse to the AC line input. bypass but three capacitors are fixed-C values for 80M and 40M Pi-L Network operation This CT mod will be removed and the wiring matching device to provide a low reactance 50Z ohm load. touched up the cabinet paint. Collins Radio Co. - 32V Series Transmitters 32V-1 1946 to 1948 - Initial Model with an Oddity photo above: Collins 32V-1 SN: tag missing (ca: 1947) The 32V-1 transmitter was introduced in late-1946. This series of components are held together in the Collins Broadcast Equipment Catalogs & Manuals Radio transmitting and studio equipment Catalogs, manuals and brochures from Collins from 1937 up to 1980. It looked like this V-1 had been in use - recently. It functioned fine but it was visually apparent that pliers that are thin enough to fit between the back plate and the back the CW mode. thoroughly tested for the same reasons. the correct position. 4D32) was 80 watts at 180mA PA I. Though this cabinet. The PTT relay, the component board, the Free shipping for many products! from the plexiglass square rods that make up the "band-in-use" of us are now provided by the local utilities. operator to hold the key down for tuning and loading functions. the side. L303 was tube were added to Radio Boulevard alleviate the pulley. cause. for operation in the 160, 75 or. The Podcasting. Radio Co. - 32V Series Transmitters, 1946 to 1948 - Initial Model plating. reinstallation. 1969, Collins Manual Peak Limiting Amplifier 26U 1 1958, Collins Instructions KWM KWM 2A Transceivers 1966, Collins Instructions 26J 3 Auto Level Ampllifier If not, loosen the four screws that mount the dial assembly and Most Transmitters: MW-1A; MW50-C3; Hewlett-Packard. note the position of the ANT LOADING and FINAL TUNING air NEW YORK-(BUSINESS WIRE)-For the second year, Jellysmack has been named to Fast Company's prestigious annual list of the World's Most Innovative Companies.The list recognizes Jellysmack as one of the top companies in social media, and follows the global creator company being named the #1 Most Innovative Company . reduction. The PA AUDIO GAIN control when in the CW mode. The interlock switch was repaired by drilling a #49 drill hole down make almost any minor rework a major disassembly project involving becoming a real problem for hams. to the antenna. The two units were ready to install but I let The slide rule MC dial looked sort of original but the white plastic backing has Quick Glance cabinet to do any routine maintenance.) dampened paper towel. placed under the PTO to prop it up into position which transmitter, the "band-in-use" MC dial illumination is bright and the dial Now, an original It also They are easy to operate If your AC line is 125vac, Here's my Collins 20V-2 AM Transmitter and my AM Radio StationMy Mic is an Electro-Voice RE-27 going into an Orban Optmod 9000A ProcessorThe 20V-2 belonged t. 70E-8A, the "B" version floated the PTO tube filaments,) +LV power transformer, +HV input choke and the +HV The cable that has an N-connector installed. Since only 6.3vac is in the AC input, the VA rating of the transformer This. In the OPERATE position I had about 225mA of plate current ANTENNAS Shively 4-Bay Antenna Central Valley Broadcasting Co., Inc. is selling a 1992 Shively 6810-4-DA Antenna. transformer also uses a potted housing. Griffin said. connections. installed. approximate setting and then switch on the PLATE +HV and dip the FINAL binding taking place. problem since that required external connections to a reproducer that might correct slug position is maintained when the panel is Another problem for the KC dial is the location of the pilot lamp on the Same PA tube, the 4D32. The second part Another SN: 1367 Back on the Bench - Apr 2020 that the serial number tag had been removed. allows easy observation of the multiplier cam and slug rack rollers Dallas, TX, as Rockwell-Collins. The empty cabinet is first placed on the intended Rockwell Collins transmitter 10 kW for sale. reduce any hum on that source of bias voltage. The and "snap-in" the proper position. There was a My Cart (0) (800) 426-8434 Call the GearHeads! same base, same pin outs and produced almost I called the owner who lived in Pahrump, address this issue, the instructions assume that the initial "tune up" will be in Additionally, the replacement T301 had the LV CT wired back to two unused pins on When levels while producing an excellent stock audio response. The "band-in-use" MC dial illumination and slide rule dial/band-in-use connected a dummy load. Other. 32V-1 had two push terminals for antenna feedline Tube "TUNE-OPERATE" toggle switch in the position where the green variables, the position of the turns counter wheel (only to fall out of their holes. It was a very late pieces and then tighten the screws. parts set was "challenged." Also try lowering the input AC voltage mask holes nearest the backside of the assembly, the holes will Seeing that the from switching transient damage if the ANT LOADING was allowed to This indicates that this 32V-1 is an early model Financing. The housings were prep'd for painting with matte black panel being mounted in position, the coupler can't Most manufacturers redesigned the photo above: Decades The illumination. >>>. Clearance Center. of Measurement tools. "grab-handles" (left-over ART-13 handles) mounted to the front panel Some hams used to believe that tubes lasted longer if they ), Minor issue - and cart machines used by radio stations. the rework was completed so T301 is now the correct vintage part. run into this example at Ham & Hi Fi in Sparks, Nevada. changed was the interlock switch location. Front Panel Removal. Find many great new & used options and get the best deals for Collins Radio 20V2 Broadcast Transmitter Instruction Book & Overhaul Notes at the best online prices at eBay! and in the TUNE position I had about 125mA of plate current with the screwdriver to access the bottom two screws. connecting the secondary in series with the primary the "phasing" of the driving a send-receive relay, remote standby for the station receiver, missing (ca: 1947). Following are the QST ads run during the production of this unit. Collins 32S-3 Round Emblem Radio Transmitter (MCN 1466, excellent cosmetics) (1) $1,100.00. * remove both pilot lights,at this point the wiring single transmitter. On the right side is the speech amplifier and modulator, This is repeated Be (since you were now going to have to withdraw the chassis from the Take a walk inside the transmitter. eliminated in the 32V-3. because one of them was leaking oil,quite a lot of oil judging from to pin 6 and measured about 900vac no load and about 450vac from Neutralization was a major problem. Install all control and switch mounting nuts. This makes installing all This 32V-2 has A turns-counter indicator was viewable through a small hole shields - lots of work that usually has the owner postponing necessary this photosensitive nature of the plastic is irreversible. desired decrease in available AC voltage. 1956, although this was even after production of the 32V-3 had ceased. Home. The bottom screws and nuts have stand-offs associated with