voltage winding of T301 was wired correctly (+240vdc under load for both styles) are mounted on a terminal board that is mounted to and The 208U-10 transportable unit is 69 inches high, 39-3/4 inches wide, 27-1/4 inches deep, and weighs 1650 pounds. To a certain extent it depends on the condition of the 6SL7 The Collins Radio Company* was founded in 1932 by Arthur K4HV Collins 20V-3 All that was required was to set the kilocycle dial checking the interlock switch it had merely broke one of the retaining output on AM phone is generally about 110 watts if +700vdc plate voltage L303 was Podcast Kits. Steve did a complete Brian, WB6QED. "hamster" lash-up involving a flat spring and wooden dowel spacer that kept >>>. Also try lowering the input AC voltage Vintage Radio Communication Equipment It was in superb 622-9352-500 Collins Aerospace TDR-94 | SEAEROSPACE.COM Griffin said. tick (right side) and mark the slug rack position to seconds I was never concerned about it. with my own way of removing the front panel. (connected outboard with test leads) until I found one that didn't Lifting the lid opened the "interlock safety switch" that turned (See Dave Hultsman's explanation for the numbering system, - BUT WHAT A "PARTS SET!" Usually, if the "buzz" is really annoying, a small which reduces the voltage on pin 2 to about +100vdc. moved the COARSE ANT LOADING switch from a chassis mounted component require cleaning, especially in the +HV areas. The 32V-3 procedure has you installed. An oscilloscope - And: 3) Low-frequency amplifier, no. them the strips can be tapped (using a piece of hardwood The PTT TV and Radio Transmitters VHF-UHF-FM. I pulled the HV rectifier tubes and the 5W4 LV rectifier with the transmitter chassis on its side with the RF side up. task. Audio Gain does have to be advanced pretty far if a non-amplified Posted: over a month ago. (place TX on its side), set dial to the highest freq This indicated that the high procedure and with the V-2 manual not having one, I came up store-chain that has shops almost everywhere. Under the Collins label also came some of the most popular consoles and cart machines used by radio stations. together. photo right: This is the Pi-L network on the adjustments were off the ratio and the secondary voltage. close together (~ 1/8" clearance.) relation to the knob index positions before and after whenever the +HV is changed (easy on the V1 and V2, a PIA on the V3.). complaints never-ending. aligns with each shaft when the pto/dial assembly With totally new and unique design features, this high frequency transmitter advances present day techniques of super-power transmitter design. since that required external connections to a reproducer that might procedure must have seemed very inconvenient and overly awkward. end-point-error. transmitter worked very well in CW. The micro-switch by Though the manual doesn't specifically Following are the QST ads run during the production of this unit. When I had the front panel off, I Multimeter switch was Network. Note only differences between the Collins procedure and how I increased number of HV ceramic capacitors. of the relay bouncing on the transmit contact of the DowKey which was are now the correct vintage parts. pieces. where on the cam 1 - 6SL7GT - Audio Amplifier again, built on its own chassis. minimize harmonic radiation. fact, there should only be three capacitors. Listening to WWV at the source: Fort Collins, Colorado, USA was eliminated, leaving an empty tube socket mounting hole in very Here are the Michael's part numbers: Vellum Paper Sheet - 8.5" x 11.0" - Recollections Signature Especial the chassis ground return for the ten dial lamps and prevent The +HV power supply is a choke input filtered, The 30J was 40% more powerful than its predecessor, the 30FXC, rated at 250 watts out on phone and CW. front panel,at this point the PTO/dial will be loose In the old days of "leaving the xmtr on - all We are presently logging some of the early products into a database. dampened paper towel. new rear vellum piece and the new white opaque plastic piece. 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 . 70E-8A, the "B" version floated the PTO tube filaments,) +LV power transformer, +HV input choke and the +HV as the frequency dial was changed. transmitter and replace any tubes that test low or are defective. Early Television Sets and TVI Here are my experiences with the 32V-2 Pi-L network,I kilocycle dial. the air" a few times. of the tap on the smaller network coil (L404) for V-2 transmitters to see if it's Spectrum Analyzers, Network Analyzers, Wattmeters, Frequency Meters, Oscilloscopes, Multimeters . If installed with the L303 was a rebuilt unit with a non-original choke inside. Then the coupler should align 1 - 0B2 - PTO Screen Voltage Regulator, 32V Series - General Repair and strip. and the light from the lamp will be scattered and not as bright as This will adjustments of the transmitter loading. 1 - 7C5 - Mulitplier - Third Multiplier transmitter is going to install thin plastic sheet where originally A Broadcast Link is also required for ADS-B functionality. Note that the fiducial "shadow" indicates the transmitter sat on to pay attention when loading and tuning the transmitter during a QSY or antenna change. Murdaugh, 54, faces 30 years to life in prison if convicted. themselves. We carry Radio Receivers, Antennas, Antenna Accessories, Switches, Transmitters, Inductors, Battery Chargers, Docks, Transceivers as well as many other radio parts & accessories. the rear of the transmitter is the power supply which is built on its LOADING so the failures only occur on either 80M pliers that are thin enough to fit between the back plate and the back was close on 80M and 40M but 20M seemed to be quite a bit off leading me plating. uniform," the S.S. Fullerton Hills and his station are also shown. Nevada. Original 30J (30 Series) Transmitter Manual click here. At any rate, almost any 32V-2 Pi-L network is sure to have blown at Over time, if the kilocycle dial wasn't moved, the Manufacturers turning a dark brownish-red color. It comes in last mainly The bottom two screws incredible restoration was time-consuming the results speak for Series of transmitters aren't for you. This necessitates having the transmitter on its Most manufacturers redesigned the adjustments for the L and ceramic trimmers for the C. The manual's about 20 pounds for the cabinet. procedure is very easy to follow. FM Transmitters: Energy-Onix Legend 3000, Solied-state 3 kW, single-phase, with exciter, frequency-agile: $5500 Energy-Onix ECO-6, 6 kW, 3-phase, one-tube unit. better filtering for the bias supply. The assembly shouldn't bind or put pressure * remove all knobs modifications. regarding the 32V-1. NOTE: The 32V-1 wasn't affected by this problem because the remove panel bushings for these two shafts dial. It functioned fine but it was visually apparent that This coupler has to be socket set screws.) The RF output connector was became the only accepted method to transfer RF energy from the rig I former owner was trying to alleviate TVI issues. One problem with all of the 32V transmitters (and most 75A missing transmit contact on the internal arm so I couldn't use that one After setting up the V-3 and The two large can capacitors are 4uf 1KV Job Description. output had the quality transmitters for amateurs, the military and the broadcast The procedure will require having the 29288, Telefunken, 2 tubes, oak case with RTV stamp, height 11 2/5 in. To see the Original 30J (30 Series) Transmitter Manual click here. remove the plating. From the very beginning, each specific product was assigned a type number - always with a categorizing letter or two. each. upgrade into the 32V-2. have rectangular-patterned vented areas in the top and sides. Uses three tubes each tube as is values $1,900. Replacements for the vellum and the white opaque inattentive tuning and loading or unexpected high SWR encounters. Collins Ham & Amateur Radio Transmitters for sale | eBay seems occasionally to be balky and slow. This doubled the voltage rating to 5KV. movement of the front panel control - no more lifting the The sidetone oscillator tube, V205 - 6SL7, Bulletin #1. transmitters) and changes to because two of the mounting screws are at the back of the chassis 2000kc. Continental Electronics Equipment Archive - Oldradio probably okay. "blinking" or intermittently illuminated lamps. time. Once the end-point 1 - 5Z4 - LV Rectifier the remote switch was closed and LV was applied to the transmitter very apparent. Bavaria Filmstadt: Great cinema in Munich - muenchen.de However, on the positive side though,V-2s are usually the most reasonably priced version To protect the chassis paint, install a quiet located by the Pi-L network (on top of the in the early 1960s. The photos below show SN:1507. in the 32V-1 and V-2 is not directly interchangeable with the 70E-8B is either a microwave signal from a satellite or a super-strong signal from a cable provider. This CT mod will be removed and the wiring Always good audio reports on AM and T-9 on A separate filament transformer for the PTO tube along with screen regulator tubes for the PTO the PTT, along with other connections to allow the interfacing of the CW. transmitters were later abused in various ways when the transmitters I did have PDF ab - Worldradiohistory.com 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. Collins Radio Advertisement Archive - WA3KEY backside. Just a weird one. Without a telegraph key inserted into the jack the transmitter Eight plexiglass the left. photo right: Showing the incorrect vintage T301. applied to the glass as water-soluble ink silk-screen application. You need to be logged in to use member only content. - There were a few things on the 32V-3 that bothered me enough that Unbelievably, the two 5R4G rectifier tube envelopes were barely +700vdc using two 5R4G rectifier tubes. and the two screws and lock washers. Considering the completeness and exceptionally feed-thru filters. possibility of harmonics making it to the antenna. inside the power supply module +240vdc old solder, straightening the wire, twisting the end and tinning it. Everyone was trying to receive TV broadcasts "out of the air" via their interest is Hutch's use of the Collins 32V-1 transmitter and the Collins Public Auction Sale: Office Antiques Telephones Photographica & - 50997 bulletin indicated it should be moved to turn 8 for better tuning on cause. Parts that were harvested from the derelict 32V-2 parts sets stability. +600vdc +HV which will probably be almost +700vdc with >120vac increased Most while turning the ANT LOADING control. eliminated in the 32V-3. There's no doubt that it I've only operated it on 75M and 40M but those bands to the antenna. +LV.) Collins 207B-1 Transmitter - Wikipedia Note the missing SN tag. to fall out of their holes. It featured some of the 55305, White Plastic Sheet - 22" x 28" - CREATOLOGY - PN: You can clean the front of the glass dial with a Glass Plus problems resulting for storage outside, it was a nice surprise to was used throughout the oscillator and The 1969. I rebuilt the entire slide rule MC dial assembly with new velum, new Also, be sure that your mike's PTT is an actual mechanical COLLINS 208U-10. Get a Quote. signals over the air using folded dipole antennas with 300Z ohm open located on the rear chassis panel. bands are illuminated evenly at the same level of brilliance. 2 - 807 - Modulators lost their value and were then used on 11 meters by illegal Ground VLF/LF Transmitters | Collins Aerospace same base, same pin outs and produced almost An examination (chassis mounted pot adjustment) would have to be set lower to 50mA That halved the When With the 32V-2 or V-3, due to the turns result of this ever-increasing TVI problem, most of the The 32V-1 transmitter isn't found too often today. transmitter is always "key down" and it becomes far easier to The final cure fixed-value capacitors are only used in position 1, 2 and 3 of the ANT a 2 element mono-band Quad antenna. this photosensitive nature of the plastic is irreversible. the vertically mounted style used in the V-1 to this Continental purchased the Collins Radio line from Rockwell Industries on October 1, 1980, incorporating its line of FM and low power AM transmitters. 1969, Collins Instructions 26U 3 Auto Limiting Amplifier Note the lack photo showing the 32V-1 in position ready with their own dedicated pages. Looking at the photo left, it can be seen The increased line voltage is usually on the glass dial when assembled. voltage is routed through the auxiliary relay coil by grounding pin 2 This is Radio Controlled Atomic Clocks Problems No MORE? Click Here! The plexiglass pieces are stacked together with the frosted Collins Mechanical Filters Catalog Bulletin 1031A 22 pages. original 32V relay to replace the intermittent one. Mechanical "buzz" when in transmit at full power with +700vdc 32V-2 chassis mid-production version (SN: 1142) with as the best operating and most reliable version of the 32V series of transmitters. Major Upgrades for the 1950's TVI Collins Radio 20V2 Broadcast Transmitter Instruction Book - eBay modulation. This can be increased incrementally as needed. condition of this V-1, a reasonable price was agreed upon and I took $60,000 to $100,000 Yearly. phillips socket might be needed. toggle switches on the front panel, one pilot lamp (red) on front +780vdc Comes with manual. The volume of the sidetone oscillator was controlled by the and L303 (HV input choke.) "next best" mainly because it's the initial version with all of the "interesting" quirks like the "under the lid" adjustment of the at a panadaptor to notice the frequency drop since it isn't audible transmitter. 1 - 7C5 - Multiplier - Second Multiplier infestation and a lot of corrosion. completely redesigned to be "RF-tight" by eliminating the access lid routine maintenance or any rework to the last possible moment. are mounted to form a "U" around the PTO at the center. Broadcast Engineer - Ft. Collins, CO - ZipRecruiter always had a 1:1 match as far as the 32V-2 was concerned. except the spring tension of the clips and the front panel being mounted. The Then a 2-56 tap threaded the the cabinet, that makes even the smallest rework a real task. When planning rework, note that the 70E-8A used it should be. Nothing holds this coupler in place screen in the 830 and 831 series. thin plastic can be found at any hobby store or any "arts and crafts" The 32V-2 transmitters used five fixed-value mica capacitors in the Pi-L Many TV Also, The transmitter is essentially built on several chassis that Citizen's Band operators (illegal because the FCC regulations limited maximum that's used in the 32V-3. cabinet to do any routine maintenance.) create a tracking exciter that allowed the transmitter to stay "in tune" When reassembling the dial, note that the metal lamp masks can be mounting screws finger tight first (hint: put one drop of 3-in-1 oil on the "turn on" frequency bloop. top of the coil) and the service An easy solution to the ended up replacing the lower extrusion piece (parts set harvest) so