I found this combo at the 2005 hamfest in timmonium, md. I found it sitting on a table amongst some other items non ham stuff. It was built with 2,8 cc petrol engines, and four speed manual gearbox was available. Drake ac4 power supply rebuild for my tr4cw youtube. Jeffrey, send me your email address pm and i will send you a pdf of the early manual. Power supply, model 1502 fixed station operation of the tr. To the right is pictured my drake tr4 and ms4 speaker.
Service manuals, schematics, eproms for electrical technicians. I am now accepting new manuals for inclusion in this archive. In this page you find schematic, users and instructions manuals, service manuals, technical supplement, leaf leads and other good stuff. These manuals are available for download and free of charge. Visit us online for more information or to download owners manuals today. Drake equipment needs a pushtotalk switch to operate, even in cw. The car was based on the chassis and drivetrain of the previous tr sports cars, but with a modern michelotti styled body. The manual was created in pdf format with the filename of tr4. Drake, drake ham radio, drake radio, drake tr7, drake tr7, drake tr4, drake mn2700, drale l4b, drake l7, drake manual, drake rv4. Tuning tr4 to meet fcc purity requirements 6jb6 tube replacements fr4tr frequency readout fr4tr update tr44b hf transceiver tr4c hf transceiver tr4c instruction manual errata sheet 0rgho 3duw hvfulswlrq. Drake model tr4 is a single sideband transceiver designed for the transmission and reception of upper and lower sideband signals on the 80 through 10 meter amateur bands. Drake tr4 transceivers exhibit same attenuation in bass response while receiving ssb. Im not too sure about this as i moved the ptt to an rca jack on the rear apron years ago.
Drake tr7 operating manual ring boundreprint is from the scanned original why buy from me i give you heavy 110 lb card stock covers front and back also give you the heavier. The tr4c features a highstability linear permeability tuned vfo and two 8 pole crystal lattice filters for sideband selection. Heat and electronics do not happily co exist ref tr4 above. Manuals online from bama download many drake manuals. Drake manuals menu drake home page drake home page. If your guaranteed delivery item isnt on time, you can 1 return the item, for a refund of the full price and return shipping costs. L, drake model tr4 is an 80 through 10 meter amateur band transceiver. View and download drake tr4c instruction manual online. Be aware that the file is about 15mb, very large, so will take a long time to download, depending.
The r l drake model l4b linear amplifier offers continuous 2000 watts pep ssb, and watt dc, c w, am and rtty operation covering the ham bands 80 through 10 meters. The tr4 series represent possibly the best vaccuum tube transceivers ever made. The manual was written in by drake and applied to tr4c. Rl drake tr4 original instruction manual in very good. About your drake software users manual the drake software users manual has been developed for drake customers to provide clear, uptodate, easytofind instructions and guidelines for using the software. Toshiba 2sc2879 transistor datasheet pdf macom mrf421 transistor datasheet pdf. For comparison purposes, the unit is somewhat sb100 series like, but the tr4 receiver is much more sensitive on 15 and 10.
Triumph tr4 the triumph tr4 is a british sports car which was produced by the triumph motor company from 1961 to 1965. While the transistors may take it and good design compensates for it, thermal run away is a concern. La6op sindre torp has over 200 different drake units. I developed a problem with my drake ac4 power supply after 37 years of use. The l4b uses two 3500z or two 88023500z or two 8163 or two 3400z zero bias. Visit us online for more information or to download service manuals today. With our concentrated focus serving the commercial and professional video markets, we constantly strive to anticipate the need, to provide answers to questions not yet asked.
To operate in standard am mode with ssb selectivity filter. This manual provides sufficient information for operation of the tr4c transceiver by a licensed operator and for repair and maintenance by an ex. Available accessories include an rv4c remote vfo, a matching ms4 speaker, an ff1 fixed frequency adapter, a 34pnb noise blanker, 12. R l drake service information not provided by drake. That is wrong, c1142 is a coupling capacitor for the bfo signal and should be drawn from pin 10 to bfo in 1140. Drake external speaker ms 7, model 1531 the ms 7 external speaker is intended for use in lieu of the speaker built into the tr5 in fixed station operation. All manuals include schematics unless otherwise noted. Drake tr4c owners manual and service instructions service. Feb 22, 2014 dear fellow hams, staring at my newly purchased e. Picture is for illustration only, we will send you brand new scratch proof dvd burned with high accuracy for you only. K8bvjs wondrous boatanchors his rigs, including the drake 2nt, drake tr4 early version, tr4 late version, tr4c, tr4cw, swan 350 410 vfo and a hw101.
The drake tr4c is an hf amateur band transceiver covering 160 through 10 meters in seven 600 khz ranges. The ptt contacts are part of the mic jack, i think the ptt is the tip of the plug, the audio is the ring, and common is the sleeve. Here you will receive a huge set of various service manuals, owner manuals, schematics andor parts list on dvds. Select pages by clicking on the individual page number or manual section from the menu on the left. You can download the manual for a drake tr4 transceiver from here. Technical data, operating and service manuals provided by myself and other hams covering various technical subjects, amateur radio receivers, transmitters, transceivers and accessories. Full coverage on all amateur bands, 10 through 80 meters is accomplished in seven 600 kc ranges which is as follows, 3. General coverage also extended to the transmitter although the latter was blocked by. Make offer brand new drake ms4 speaker baffle replacement r4 r4a r4b r4c tr3 tr4 ac3 ac4. Tr4 manual trivia the front cover of the manual depicts the 2 crystal filters in the radio showing the skirt selectivity and bandwidth. Tr4 early version manual, tr4 without the noise blanker. I use the latest high quality laser printer i normally ship day of receiving payment or following day depending on the time payment is received.
To open downloaded files you need acrobat reader or similar pdf reader program. Cover contents page 1 page 2 page 3 specifications. The transceiver will easily put out 200 watts on 80 meters and 100 watts on 10. Besides following the procedure in the manual, i seem to remember that the. View and download drake t4xc instruction manual online. Its compact size makes it ideal for both fixed station use in conjunction with our model ac3 120 volt ac power supply, or for mobile installations using our model dc3 12 volt. At blonder tongue, the best and brightest engineers and technical minds converge to explore the new frontiers of media distribution. The second page of the transceiver schematic is a little messed up. Drake tr4c specifications discontinued amateur hf transceivers. Describe your experience with the drake tr 4 and other radios in this line and tell us why you give it the rating you did required. Working my way back in time drake tr4 page 2 qrz forums. All manuals are copies and are madetoorder unless otherwise noted. Increase if gain the tr4cw had 1 pf capacitors across the if transformer hot side t11 and t12 to increase the if gain. Watch original service manual for the drake tr7 sideband transceiver very good.
I may have a clean manual and schematic copy from a cd of drake manuals i bought several years ago but i have been on the ms and fl gulf coasts for a few days and will check when i return home late tomorrow. Mic and headphone jacks are on the right side panel with photocopy of owners manual. Drake tr3 restoration the transceiver which started it all. If you have some stuff that not is listed here you can donate this by contact mods. Drake tr4, drake tr4c, drake tr4cw universal radio. Not bad i would say, but it was time to replace the capacitors and restore to new condition. Perhaps drake has modified this page in later editions of the service manual. Antique radio forums view topic drake tr4 schematic. Drake, drake ham radio, drake radio, drake tr7, drake tr7.
Drake tr4 sm service manual download, schematics, eeprom. This supply is designed to supply the proper voltages and currents for the unit from 120240 vac 5060 cycles and will fit inside the ms4 speaker. The selected page will appear in this section of the screen. As a result, it is general coverage from 500 khz to 30 mhz, without manual frontend tuning being necessary. The ps7 power supply meets this re quirement, and is packaged in an attractive enclo sure similar to the t r7. Other useful information would include your experience with similar products, infomation on a product that you would purchase instead of this one, and so on. The crystal filters used in the tr3 and early tr4 are known to be fairly high failure items so selectivity problems could be due to one of them failing but most often some of the elements shift frequency ruining the response. The ac3 power supply is housed inside the speaker cabinet. All frequencies 305 to 30 mhz may be covered with some re alteration of the input circuit. The unit is housed in an enclosure whichis styled to match the tr5 in appearance.