The drake zero users manual can provide useful information about setting up, navigating and return preparation using the drake zero program. Select pages by clicking on the individual page number or manual section from the menu on the left. The adobe reader software is required to view manual. Provides maintenance instructions, troubleshooting and parts. If you dont find the manual youre looking for, please use the contact page to let me know. Rl drake l4b amplifier all in one, softstart, softkey. This table top unit could easily produce 1500 watts. Download and save the manual to your desktop or any convenience place on your computer. In this page you find schematic, users and instructions manuals, service manuals, technical supplement, leaf leads and other good stuff.
It has the original eimac 3500z tubes and still does 12000w out when driven with a 100w transmitter. That could be lowered but that was what drake set it at with zero bias. All manuals include schematics unless otherwise noted. Al andrade is a 2020 authorized industry consultant and certified trainer. Fs4 drake instruction manual premium card stock covers 28lb paper 51.
Apr 15, 2020 drake l4b l 4 b l4b pdf user manual for drake l4b l 4 b l4b. The following project permits functional testing and measurement of critical voltages and load current within drake l4b or l7 power supplies. Harbach electronics is proud to announce the new es4l4b softstartsoftkeybias board from electronic specialties. Drake msr2 operation manual reproduction nationwide.
The main category is amateur linear amplifiers that is about hf amplifiers for ham radio use. Some features may be slightly different depending on whether the account is a single site using only one efin or a multi. In addi tion, a crystal socket is provided for each of the eight auxiliary ranges to allow fixed frequency re. And it also has a reputation of running gosh awful hot.
Fuse f1 is unspecified in value because the user should decide how much protection to include. Page 1 page 2 table of contents page 3 page 4 list of illustrations page 5 tr4c sideband transceiver page 6 introduction page 7 specifications page 8 installation page 9 stationary installation page 10 electrical connections required for mobi. Amp covers 8010m, has healthy pair of eimac 3500z tubes and new glass chimneys and bottom panel foam to assure proper tube cooling. Drake msr2 operation manual reproduction nationwide radio. Service and user manual drake l4b amplifier download countless of free service manuals you find nowhere else. Drake fs 4 instruction manual reprint of the original manual printed on hi gloss 28lb high quality acid free paper for a professional finish that wont turn yellow with age hi gloss 110lb heavy card stock covers for a professional finish. In this video we take a quick look at the drake l4b with solid state relay failure. The amplifier was a very rugged amplifier and designed as a two final tube amplifier using the 3500 or similar tube. All frequencies 305 to 30 mhz may be covered with some re alteration of the input circuit. The manual is bound with a professional, comb binder system and a hard cover is used for the front and back cover.
Drake l4b l 4 b l4b pdf user manual for drake l4b l 4 b l4b. Possible applications include mars operation, wwv recep eon, and zero through 1. The drake l4b amplifier is a dual 3500z amplifier that covers the basic 80 through 10 meter bands without specific warc band 60, 30, 17, and 12 meters coverage. Other newlyannounced icom products are the icr8600 desktop receiver, the icr30 handheld receiver and the id51ae plus2 dstar handheld. 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.
I am now accepting new manuals for inclusion in this archive. The l4b uses two 3500z or two 88023500z or two 8163 or two 3400z zero bias. Drake drakel4b linear paper instruction amp manuals. Even if they are bad, any radio shack dealer will get you a brand new set, but they really try to avoid this, for obvious reasons. Service and user manual stop electronic waste fix it yourself. Tr4cw drake manual copy for the late 4 series transceiver 25. Harbach electronics, llc your worldwide source for amateur. It is a real workhorse design that can stand modifications to improve performance and. Review 4b linear paper instruction manual amp 28lb drake manuals thank you for looking. Drake l4b power supply harbach electronics kit installation. Clean, good condition amp and power supply with newly installed upgrades from nonsmoking environment with manual. To build the largest and most complete amateur radio community site on the internet. The new ic7610 sdr transceiver this group has been created to provide information and a discussion forum for the new ic7610 sdrhf transceiver. The openframe relay has been used in amplifiers dating back to the days of the drake l4b, henry amps, and heathkit amps.
The drake usually has about 2650vdc on the plate in ssb and to bring that down to about 160ma it takes about 3 to4 volts. Icom has announced the ic7610 at tokyo hamfair 2016, which opened on 20 august 2016. Here you will find instruction manuals, service manuals, user guides schematic, brochures etc. Replacing filter capacitors on the drake r4b receiver, by w6spc. Tuning the l4b to meet fcc requirements l4b spare parts list l7 1528 linear amplifier la7 audio amplifier ln4 ac line filter ln5 ac line filter lp100tv lp filter mc4 mobile wattmeter speaker ml2 2 mtr. The r l drake build several high power rf amplifiers that used the popular 500z tubes. Currency all prices are in aud currency all prices are in aud. Visit us online for more information or to download service manuals today. This allinone board provides a softstart, softkey and user adjustable biasing for the drake l4b amplifier. Drake tr4 instruction manual 49 pages transceiver r. Taking time now to familiarize yourself with the drake drake software. All frequencies 3,5 to 30 mhz may be covered with some realteration of the input circuit. Available accessories include an rv4c remote vfo, a matching ms4 speaker, an ff1 fixed frequency adapter, a 34pnb noise blanker, 12.
Drake l4b amplifier service and user manual free service manuals, fast download, no limits. The first table i got to had a drake l4b displayed and for sale. Get the best deals on drake l4b when you shop the largest online. Printed on higloss 28lb high quality acid free paper for a professional finish that wont turn yellow with age. Drake l75 l 75 l75 pdf user manual for drake l75 l 75 l75. Collins 30l1, heathkit sb200 and sb220, drake l4b and other amplifiers with 110 vac keying relays. Feel free to look at my other manuals under my items for sale listless do not leave bad feedback before contacting me if there is a problem contact me first i will take care of it for you. Get the best deals on drake l4b when you shop the largest online selection at. Discussion in general technical questions and answers started by w8rid, may 11, 2010. Drake l4b sm service manual download, schematics, eeprom.
Second, put a 100 nf capacitor in parallel to r19, cathode resistor of v4, this will. Drake l4b l 4 b l4b service manual and specs drake l7 l 7 l7 service manual and specs drake l75 l 75 l75 service manual and specs. View and download drake t4xb instruction manual online. All manuals are copies and are madetoorder unless otherwise noted. All frequencies 3,5 to 30 mhz may be covered with some realteration of the input circ. If you have some stuff that not is listed here you can donate this by contact mods. Service manuals, schematics, eproms for electrical technicians. All of the schematic pages are done on 11 x 17 inch paper and will fold out like the original if the manual had 11 x 17 size schematic diagrams. Drake t4xb solidstate relay keying tube replacement, by wa1kkm. The es4l4b is a combination softstartsoftkeybias board for the l4b amplifier. Over the last 40 plus years the amplifier section has. View and download drake r4c instruction manual online. Visit us online for more information or to download owners manuals today.
Drake, drake ham radio, drake radio, drake tr7, drake tr7, drake tr4, drake mn2700, drale l4b, drake l7, drake manual, drake rv4. Terms sold as a vintage collectible and strictly as is. The tr jack is used to key the intermediate relay and the dry contacts on the relay key the amplifier. When i acquired this amp, it was all in original condition including the power supply. About l4b 160m mod the resource is currently listed in in a single category. The tr4c features a highstability linear permeability tuned vfo and two 8 pole crystal lattice filters for sideband selection. The power supply is a heavy brute that sits on the floor. These manuals are available for download and free of charge. First try to have your r4b at its original specifications. May 02, 2016 drake, drake ham radio, drake radio, drake tr7, drake tr7, drake tr4, drake mn2700, drale l4b, drake l7, drake manual, drake rv4. All manuals are unless otherwise noted, you will need at minimum to open some documents may be very large, be patient when downloading.
Drake website equipment manual section manual display page. This included the l4b amplifier section and the l4ps high voltage power supply. More drake power amplifiers drake l4b l 4 b l4b service manual and specs drake l7 l 7 l7 service manual and specs drake l75 l 75 l75 service manual and specs. Note that there is a limit to the number of files you can download. For complete details on disaster relief provisions, see the irs publication 976, disas.
All frequencies 3,5 to 30 mhz may be covered with some realteration of. Transceiver miscellaneous manuals not classified elsewhere drake tvi letter drake crystal ordering form. The selected page will appear in this section of the screen. The drake technical net is a technical session for troubleshooting help, looking for parts, repair assistance and advice. A portal that hams think of as the first place to go for information, to exchange ideas, and be part of whats happening with ham radio on the internet. The drake team has been working hard throughout 2014 to help ensure that your firm has a successful, rewarding filing season in 2015. I am going to operate this amplifier with an out board qsk switch and bias control. This site helps you to save the earth from electronic waste. The drake l4b amplifier was designed and built in the middle 1960s as a two piece unit. Drake, drake ham radio, drake radio, drake tr7, drake tr7. Drake l4b amplifier solid state relay modification. Cw, am and rtty operation covering the ham bands 80 through 10 meters. Drake l4b tuning and operating instructions qrz forums. The one weak link in the design is the combined ac power and ssbcw tune rocker switch.
This allinone board limits inrush current during amplifier startup by placing a small resistive load in series with the ac mains. Drake l4b l 4 b l4b service manual and specs drake l7 l 7 l7 service manual and specs. The drake l4b is one of the highest quality amateur amplifiers ever made, a timetested design, ruggedly constructed, with top notch components. Drake l4b manual pdf download drake l4b manual pdf. Normally the l4b runs in zero bias which gives you about 200ma on ssb. Page 1 of 2 1 2 next w8rid premium subscriber qrz page. Drake software users manual about your drake software users manual tax year 2014 1 introduction thank you for choosing drake software. Drake user group at one time radio shack was selling life time tubes. The r l drake model l4b linear amplifier offers continuous 2000 watts pepssb, and watt dc. Free pdf download then when they announced that the surface type cover 2 would have illuminated keys i thought brilliant c program files winantivirus pro 2006 download dwziycoj adware.