fl-2000b service manual

fl-2000b service manual

By submitting a comment, you are declaring that you agree with these rules: Although the administrator will attempt to moderate comments, it is impossible for every comment to have been moderated at any given time. You acknowledge that all comments express the views and opinions of the original author and not those of the administrator. You agree not to post any material which is knowingly false, obscene, hateful, threatening, harassing or invasive of a person's privacy. The administrator has the right to edit, move or remove any comment for any reason and without notice. Failure to comply with these rules may result in being banned from further commenting. A built-in SWR bridge measures SWR on by barefoot and linear operations. The built-in solid state power supply requires no warm-up period and provides excellent voltage regulation. Downloaded by INSTALLATION Amateur Radio Directory The FL-2000B has been designed incorporating two safety locks to prevent dangerous high voltage shock.Do not cover the top of the FL-2000B with books, papers or other equipment. Do not insert anything under the bottom of the FL-2000B or overheating may result. E terminal should be connected to ground for exciters whose relay contact connects to ground on transmit. Turn on the exciter and increase the exciter output while not exceeding 0.2 Amps plate current and tune the-plate control for dip in the plate current. The RF driving power delivered to the input is applied to the tube filaments through a changeover relay and a pi-network on each band which is selected by the input switch S2a. Tube Replacement If it becomes necessary to replace the tubes in the FL-2000B, the same manufacturer brand should be used. Trouble Shooting During long periods of operation, it is quite possible that some problem will arise which cannot be cured by tube substitution. The amplifier now works without plate voltage.http://xn----7sbab1bcaqplb0ccyi9d.xn--p1ai/UserFiles/bosch-induction-hob-user-manual.xml

• fl-2000b service manual, fl-2000b service manual.

Extreme care should be taken, because there is high voltage AC on the secondary terminals of the high voltage transformer. Automatic Level Control circuit controls the exciter gain to allow the highest average power without distortion caused by peak clipping. Changeover circuit biases the tubes to cut-off, eliminating unwanted heat and diode noise generation when receiving. An internal changeover relay feeds the antenna to the exciter for barefoot operation when the FL-2000B is turned off or is on standby condition. A built-in SWR bridge measures SWR on by barefoot and linear operations. The built-in solid state power supply requires no warm-up period and provides excellent voltage regulation.F - R: Rocker switch selects either forward or reflected SWR bridge reading. SENS: Potentiometer adjusts meter sensitivity for SWR measurement. PLATE: Plate capacitor in tank circuit. INSTALLATION The FL-2000B has been designed incorporating two safety locks to prevent dangerous high voltage shock. However, extreme care is recommended when servicing inside the cabinet. - 2 4 Unpacking Carefully remove FL-2000B and tubes from their packing cartons and examine them for any visible shipping damage, check the control knobs and switches for complete freedom of action. Should any damage be apparent, notify the delivering carrier immediately stating the nature of the damage in detail. Tube Installation. Tubes can be installed after removing the top cover (see SERVICING). First, check to see if the tube holders at the tube sockets are loose enough to install tubes. If not, loosen them. Notice the mark pin of the tube base comes to the right of the socket for correct insertion into the socket. Push the tubes straight in to insert them and fasten the tube holders. Insert the plate caps on the top of the tubes. Check to make sure that the plastic choke coil has enough clearance from the surrounding parts to avoid electrical short.http://sterenstein.ru/userfiles/bosch-induction-hob-user-manual.xml

After replacing the top shield of the tube compartment and the top cover, the amplifier can be connected for operation. In general, care should be taken to insure that enough space is allowed around the amplifier cabinet to permit adequate air circulation within the linear amplifier. Do not cover the top of the FL-2000B with books, papers or other equipment. Do not insert anything under the bottom of the FL-2000B or overheating may result. POWER REQUIREMENT The FL-2000B has a built-in power supply which can be operated from either 100, 117 or 220 volts AC cps. The FL-2000B is shipped from the factory connected to operate on 220 volts AC 5 It is recommended that the FL-2000B is operated from its own 220 volt 10 amp or greater circuit. Do NOT, under any circumstances, operate the FL- 2000B from a 115 volt lighting circuit, as the circuit conductors are not large enough to carry this load. The following diagram shows the wiring connections for 1 10, 1 15 and 220 volt operation. Connections must be made as shown or serious damage may result 6 ANTENNA REQUIREMENT The FL.-2000B has been designed for use with an antenna resonant at the operating frequency and having approximate impedance within the limit of 40 to 80 ohms. The nominal output impedance of the FL-2000B is 50 ohms. When the impedance of the antenna used is far from this value, it is recommended that an antenna matching network be used which will allow the FL-2000B to work into its nominal 50 ohm load for maximum power transfer into the antenna. GROUND REQUIREMENT The FL-2000B should be connected to a good earth ground through as short and as large a gauge wire as possible for best performance and maximum safety.The exciter should be placed as close to the amplifier as practical to avoid long coax and ground connections.

ALC On the rear of the FL-2000B, a terminal is provided for connection to the exciter of the ALC voltage which controls the gain of the exciter to prevent distortion caused by peak clipping 7 Relay Control RY and E terminal on the rear of the FL-2000B are provided for connection to the exciter relay circuit which is normally open, and which closes on transmit and thus keys the FL-2000B at the same time. E terminal should be connected to ground for exciters whose relay contact connects to ground on transmit. The terminals are jumpered with a wire for testing purposes when the unit is shipped from the factory. OPERATION CAUTION BE SURE THAT THE FL-2000B IS CONNECTED TO A 50 OHM ANTENNA SYSTEM OR A 50 OHM DUMMY LOAD AND THAT THE PROPER POWER CONNECTION HAS BEEN MADE FOR THE LINE VOLTAGE THAT IS TO BE USED. (SEE PAGE 4) For all modes of operation, the FL-2000B is tuned up with a single R. F. frequency driving it. The exciter may be tuned up on CW into the antenna connected to the FL-2000B with operation switch at STBY position, or by leaving the FL-2000B power off. Turn on the exciter and increase the exciter output while not exceeding 0.2 Amps plate current and tune the-plate control for dip in the plate current. Alternately adjust the plate and heading controls while increasing the exciter-power in small increments until maximum R. F. output occurs at 0.5 Amps plate current. Do not exceed 10 seconds at maximum input to protect the tubes. If the relative output meter goes off scale during tune up, reduce the meter sensitivity control in a downward direction. Approximate settings of the loading control at maximum input are given in the chart on page for 50 ohm load. Now you are ready for CW and SSB operation. For SSB operation, the exciter should be adjusted to run the FL-2000B plate current between 0.2 and 0.3 Amps under normal voice operating conditions, because the meter cannot follow speech speed. For AM operation, tune up the FL-2000B as described previously.

Then the exciter should be adjusted to run the FL-2000B at 0.2 Amps plate current with unmodulated carrier. To measure the SWR of the antenna system, set the meter switch to SWR and apply R. F. power to the antenna. The RF driving power delivered to the input is applied to the tube filaments through a changeover relay and a pi-network on each band which is selected by the input switch S2a. The input switch is ganged to the band switch S1. The RF voltage appearing on the grid of the tube is coupled through C203 to ALC rectifier diodes D201 and D202. The plate potential of D201 is determined by R1, R2, R3, so that adequate automatic level control voltage is available to control the exciter. The bias is set by R4 for 0.09 Amps idle current. In standby, the cold end of S4 is opened so that bias voltage cuts off the tubes. The plate circuit is coupled to the 50 ohm output load by an adjustable pi-network through the SWR bridge circuit.The bottom cover can be removed by taking out the four screws on it 10 Removing Shield Cover After removing the top cover, the shield cover of the PA compartment can be removed by taking out two screws on the shield cover. The safety lock shorts out the charge condensed in the capacitor. Removing the Cabinet After removing six screws on the front end and two in the bottom of the cabinet, the cabinet can be slid out backwards from the chassis and panel assembly. Tube Replacement If it becomes necessary to replace the tubes in the FL-2000B, the same manufacturer brand should be used. Trouble Shooting During long periods of operation, it is quite possible that some problem will arise which cannot be cured by tube substitution. If this occurs, it is recommended that you either return it to your dealer or write us in detail. Input Coil Alignment The input coils are adjusted at the factory for the center of each band and are broad enough to cover the entire band.

However, if the tubes are replaced with a brand other than originally supplied, the input coils may have to be realigned. The alignment is done with a 50 ohm SWR meter inserted between the exciter output and the FL-2000B's RF input coax jack. First disconnect the FL-2000B from the power line, remove the top and bottom covers and disconnect the wiring from the high voltage transformer secondary terminals. Recover the top cover. The amplifier should be connected to the exciter as for normal operation with the exception of the SWR meter in the input line. Preset the controls as follows: - 9- 11 Band Switch: On desired band to be tuned Loading: Fully counter-clockwise Plate Control: In the position described on page 7. With the exciter tuned up on CW in the middle of the band to be tuned, turn on the FL-2000B. The amplifier now works without plate voltage. Extreme care should be taken, because there is high voltage AC on the secondary terminals of the high voltage transformer. Increase the output from the exciter until the amplifier plate meter read 0.1 Amps. Tune the 'plate control for a dip in plate current and tune the slug on the correct input coil for a minimum reflected power reading on the SWR meter that is connected to the input line. After re-alignment, disconnect the power cord from the AC line and reconnect the disconnect wiring to the secondary terminals of the transformer 12 13 14 15 16 17 18 19 20 It allows amplifiers to be properly adjusted The versatility of the Amplifier makes it the perfect choice for almost every type of custom multi-room Owner s Manual By Walter A. Breining, N9WB D-104 Discussion The D-104 has been around since the 30 s and is still popular today for communications. You have bought a great, innovative product from DAP Audio. The DAP Audio Microphone range brings excitement to any venue.Connecting up using the high level input. Connecting up using the low level input.

FM is commonly used at VHF radio frequencies for In this lab, you will create the power supply that transforms the AC wall Mike Brink HNF, Design Technologist. Mike Brink HNF, Design Technologist. Abstract. I have been asked to put together a detailed article on a SWR meter. In this article I will deal Connecting up using the high level input. Connecting up using the low level input. TM-200 Main Station. Instruction Manual TM-200 main station is suitable for television Safety Operation Maintenance The Decimator ProRackG was designed to provide the maximum Caution Make sure you are properly grounded with an ESD strap before continuing. The main printed Class B devices have a Federal Communications Upper cylinder Lower cylinder Ground Counter pose Phasing coil Impedance transformer and tune circuit Tune coil Feed This Troubleshooting Guide covers the electric coolant valve and control For best results, please thoroughly read this manual and carefully follow the instructions. Please pay extra attention In addition to the User manual All Hegel products are based on a simple philosophy: The audio reproduction instrument shall reproduce A8, October 27, 2012 A8, October 27, 2012 Introduction The KX3 standard VFO temperature compensation is entirely adequate for most To clear up one or two ambiguous points, I have added my own comments Rogue Audio, Inc. 3 Marian Lane Brodheadsville, PA 18322.This document may not be copied in whole or in part or otherwise reproduced without Warning Failure to Reprinted with permission from Electronics Now Magazine September 1997 issue This article is intended to help someone get on PSK31 with a K2. These are the things I did to get Understanding Electricity. Two Types of Current. Powering the PC Active Speaker System with remote input LX523.All voltages and watts are RMS. All measurements taken The lightning flash with arrowhead, within an equilateral triangle, REV-A 753020 All rights reserved.

No part of this book shall be reproduced by any means; electronic, photocopying, Tools Needed. DC Servo drive. Contents. 1. Safety, policy and warranty. 1.1. Safety notes. 1.2. Policy. 1.3. Warranty. To use this website, you must agree to our Privacy Policy, including cookie policy. Do you feel this document is not acceptable. Please report it !If you have any questions or suggestions, or if you'd like to participate, please get in touch. It may not display this or other websites correctly. You should upgrade or use an alternative browser. Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs. If anyone wants to change their username contact an admin and it will be done. Multiple accounts belonging to the same member will be deleted without warning.The tubes have been replaced with new. The DC blocking capacitor has been replaced as well, the old one blew up. From my understanding the guy that had it before drive it hard. Over a 150 watt DK into it. I was told that there was a device that would shut it down and feed the power thru without going into the amp. Which is exactly what it is doing. I have plate voltage and the filaments have voltage. Any idea what I should look for or has anyone else ran into this problem. Any help would be greatly appreciated. Thanks in advance. If it's an FL-2100B instead of an FL-2000B (never head of it), there was no 'swamping' circuit. One could certainly have been added though. I also hope those replaced tubes were of the 'lay down' variety rather than the 'stand up' variety, there really is a difference. And since that thing is dangerous if you aren't sure of what you are doing, I would be very, very careful of it. Get the manual first. - 'DocIf it's an FL-2100B instead of an FL-2000B (never head of it), there was no 'swamping' circuit. One could certainly have been added though.

I also hope those replaced tubes were of the 'lay down' variety rather than the 'stand up' variety, there really is a difference. And since that thing is dangerous if you aren't sure of what you are doing, I would be very, very careful of it. Get the manual first. - 'Doc Click to expand. The tubes have been replaced with new. The DC blocking capacitor has been replaced as well, the old one blew up. From my understanding the guy that had it before drive it hard. Over a 150 watt DK into it. I was told that there was a device that would shut it down and feed the power thru without going into the amp. Which is exactly what it is doing. I have plate voltage and the filaments have voltage. Any idea what I should look for or has anyone else ran into this problem. Any help would be greatly appreciated. Thanks in advance. Click to expand. They do not work in the Yaesu amps, as well as others, unless there are changes made to the bias circuit. Here is a link to the FL-2100B manual but the amps are very similar AND the Svetlana bias info is at the end of the pdf file. I have the instruction manual copied from RFParts. Yet I cannot find anything That would be in the circuit that would cause this. The only thing modified is The high voltage safety switch has been disabled. This was so that if the top was taken off, it would short out the high voltage supply. If I put a 10 watt carrier into amp, I see about 8 watts out. I have made sure that the band switches are in the right position. It is as if the power going in goes thru circuit but has some loss as the load and tune affect the few watts going into it. I have worked with some high voltage and yes i have a shorting stick laying around just for working on stuff like this. I am sure it is something simple I am missing. The band switch I checked out as well. Has some signs of a possible arc as well. Carbon build up on the plate of rotary switch. Cleaned all that up and nice and shiny now. Good contacts.

If so, then the relay isn't kicking in, if not, and your input SWR went up, then the relay is functioning properly.IIRC that amp,and most amateur amps, do NOT have RF switching and MUST be keyed by an external switch somehow. Usually the amateur radio will have this connection available but a CB or export radio will not. You will need an external switch such as an external RF sensing relay or a foot switch. Regardless of this issue check those tubes to be sure they are not Svetlanas and if they are modify the bias circuit before running the amp.Switch your exciter and the amp to a different band and see if it will load into a dummy load then. If the bandswitch is burnt looking it might be a good thing to check it closely also.The replacement tubes are Taylor tubes.If he drove it hard, they are gone. RichWe pride ourselves on welcoming Radio Hobby enthusiasts of all types, while offering unbiased, informative, and friendly discussion among the members. We are working every day to make sure our community is the best Radio Hobbyist's site.Care to buy us a beer. We'd really appreciate it! International Presents the Evolution of FL-2100B is know for it's reliability, using rugged 572B amplifier tubes, high FL-Amplifiers we will notice a lot of similarities in circuitry lay out, Relay you see in the above picture needed to be replaced, not surprising for an amplifier manufactured in 1965. The. TR relay I chose as a replacement for my early FL-1000 is the same antenna relay used in the FL-2100B and Much like the earlier. FL-1000 this amplifier had no tuned input circuitry. The input signal was fed Not unlike today's modern solid state With dual fans for cooling the five horizontally mounted Sommerkamp, It will read The FL-2100B was designed as a conservatively rated matching amplifier FL-2100F (Less 10 meter operation) Sommerkamp did not produced anything Wim Penders PA0PGA If you look closely, just below In order to complete the 10m input circuit This is new for 10 meters.

Also you will need two On the -F- model IT'S A JOB !! I bought this from a really super person on. Fox Tango. My good friend Rick KA4ZSG. This is the finished amplifier after The FL-2100F did not come You can see that the contacts for the 75 meter One thing that may help in this Below See:Boys! The entire front panel will have to be Band switches if they can be found RF, make an extra effort to check everything. As you can see with a C222 takes a lot of heat from the 572B finals, if it's cracked or shows any C222 is the output coupling capacitor that This ceramic capacitor was removed from a working amplifier, but it's a time FL-2100 Series ceramic capacitors, make note of them. When ordering K313.something. So always double check your part numbers when ordering Regretfully I did not take But what you see here is Nicotine gravy on the main. RFC and a new RFC to the right which is going into the amp along with the new Cleaned, touched up with paint It looked like it was factory Bias Modification For Svetlana and Taylor 572B tubes Burned 33 ohm (1 watt resistors) in the grid circuit under Fans turning slow or not turning Also note there is a safety interlock under This switch will put a ground DIRECTLY ON YOUR. HIGH VOLTAGE power supply when the RF tank circuit top shield is removed. I RF parts is selling. TAYLOR tubes which they recommend for these in your amplifier. I for one have As a matter Tayolor tube. It's my understanding too that the Russian tubes do not hold up I have used the Sylvetlana tubes in place of 811 tubes in such This modification came from a Yaesu Technical. Bulletin. I did this to one of my amplifiers and the bias is adjusted for 0.

03 The owners manual for the FL-2100B says to adjust I can only If you would like to read the entire thread you With proper Two hundred and When running the FL-2100 on 117 VAC you Now 200 Volds DC on That will be United States and you like your amplifier, It's child's play to move the taps DC plate voltage has dropped back to where it should be running at 2400 volts. To bring this into better view for you. I measured my so called 220VAC line into That's a lot when you take into Likely outside the USA, in. Europe and elsewhere the use of 220 VAC really means 220 VAC and surely it's In fact if you think about it you may If we have our amp wired as per the owners manual Move it up to 117 VAC at the TOP of the plate wiring diagram. In the center as per the book count down four screw contacts and you see the. Zero leave this where it's connected, however the of this jumper is connected to LEAVE THE ZERO contact where it is and Lastly you should have another ZERO contact at the bottom (Nearest the front panel) LEAVE IT WHERE IT IS. In Summary a picture is worth a thousand words: (The way the books shows Better not to have it flopping around in the Just do this. Shown for Europe 220VAC. Richard Measures AG6K I recommend you look His kit will require that you change out your parasitic chokes with Metal. Oxide Film resistors to lower the Q of the parasitic chokes, lowering the grid And one additional interesting feature of Richard's For Modern Amplifier-Tubes If and when All of the Yaesu linear That being said the FL-2100 amplifier is no The fans can be disassembled and If you can't feel the air flowing out of the top Use a heavy lubricant when you reassemble the fan Keep in mind the Japanese fans in your amplifier and. It's best if you have a VARIAC to test them at 100 VAC. If not you can Site Web Master Fox Tango International Tango International, 2004. All rights reserved.

In this page you find schematic, users and instructions manuals, service manuals, technical supplement, leaf leads and other good stuff. If you have some stuff that not is listed here you can donate this by contact mods.dk. And when you click on the file or icon it will count as a download. If you want to see manuals from other manufactories you can click on the manufactory menu in the left side. You can also click here to see all the manufactories that mods.dk have manuals, schematics or other files from. Built between 1969 and 1972, they are built like tanks. The design is criticized, but there are still many in use and on the air. They are perhaps not as simplified or refined as the SB-200, but they definitely work nicely and look loads better than the Benton Harbor green box. The chrome and black front panel is nicely nostalgic. The tune and load controls are forgiving on antennas that have some SWR.easily work into a 2:1 or 2.5:1 without issues. These can be wired for 100V (JA) or 120V or 240V. The dual 572B design in proven. Stay at 500W PEP output and they will last a long long time - probably another 50 years. I always tune for maximum output (while ensuring the plate is dipped) and then advance the loading 1 number past peak output to ensure the grid current is not too high. This will do 600-700W especially if running on 240V; Best to keep to a half-KW out and the amp and tubes will last a long time. There are articles about the Russian Svetlana tubes - one of mine has the Russian tubes (with a couple small mods done) and the other has the original Cetron T160L tubes. You often find these in original shape with a 2 conductor power cord - for safety sake, convert that to a 3 conductor cord to add a safety ground. Hooked it up to my Kenwood TS-870 Transceiver easily by using a Ameritron ARB-704 Transceiver Interface with the Ameritron PNP-7D Transceiver Kenwood TS-870 Interface Cable. Works just fine.

Special note: Even though this HP amplifier is quote old, there is a good amount of literature and interfaces available to hook it up even with more modern radios. I use it behind my Kenwood 530S feeding it about 80W. All I have used it on is 15M and 20M. It works like a champ. I've had no issues with it aside from a rare loud pop from (I assume) a cap. I get a solid 600W out of it, and it makes a serious difference on CW and SSB. New tubes from multiple sources are still available if I need them. Overall, if I had to do it over, I'd buy another 2000B. I have not had one problem with the amp. No it don't have 160,17, or 12 meters but I knew that when I bought it. The 572B tubes are great and will give a very consistant 600 watts. If money is a issue and you are looking for a good cheap amp this is a very good one when you consider how much more money you would need to spend to get a legal limit amp that would give a little more output and get 160,17, and 12 meters. When I think of when this amp was made, how old it is now circa 1969, and the great job it does I have to give it a 5, I have a small quite extra fan I can lay on the amp if needed. I've used it and run it hard. Had to change out the caps but for its age thats understandable. Have broken a many pile up and worked a many Ragchew with this amp. It makes a good starter, primary or back up amp if all you need is about 600-700 watts out with 100 watt drive. Only covers 10-80 no warc bands. As previously stated it runs hot but fan noise is not a problem at my shack. 73' This style generally wears very well and although the grey wrap round case on mine has a few scratches the front still looks pretty good. The comments about the FL2100B regarding running hot and having undersized band switching contacts apply equally well to the FL2000B (more below). I bought my FL2000B from a friend. It was tidy but internally tired and I got reports of splatter when I first used it.

After ignoring it for a few years I decided to overhaul it. The (original?) 1973 Cetron 572Bs were replaced by new Chinese ones. I replaced the 6 resistors used to balance the voltages across the smoothing capacitors as they were far from the 220 k nominal. I’ve seen this in a few old linears I’ve overhauled, it’s worth checking. Apart from un-gumming one of the fans and checking the plate current metering accuracy (the Yaesu shunts frequently change value when old) the unit was ready to roll. You can check the metering using a small external PSU resistors and a multimeter; you don’t need to have the power on. I managed to zap the contact to the fixed cap switched in on 80m when testing at full power into dummy load on 40m, it arced over. The contacts were melted beyond repair although I was subsequently able to rebuild the original wafer using new contact pairs transplanted from another wafer. The internal build quality is very good with the internal cables beautifully loomed. On air it gets good reports and I like using it.When you subscribe, you receive only messages forOther useful informationThe site will be something of which everyone involved can be proud to say they were a part. Contact the site with comments or questions. Something went wrong. View cart for details.User Agreement, Privacy, Cookies and AdChoice Norton Secured - powered by Verisign Amounts shown in italicized text are for items listed in currency other than Canadian dollars and are approximate conversions to Canadian dollars based upon Bloomberg's conversion rates. For more recent exchange rates, please use the Universal Currency Converter This page was last updated: 09-Oct 15:37. Number of bids and bid amounts may be slightly out of date. See each listing for international shipping options and costs. In order to use this site, your web browser must allow cookies and have javascript enabled. Our cookies contain no personally identifiable information (PII).http://anapanic.com/images/breville-electric-wok-manual.pdf