Do we know whether a standard 2m/440 power amplifier designed for FM transmission is also 'safe' and appropriate to use for D-Star transmission? I was curious so I researched a little - it seems that at least Mirage amps work well with D-Star. 2 Kilowatt Amplifier. 144-MHz 1500W 8877 Power Amp. (See older version here) 3 element = 7 dBd Gain. I purchased the Plate lines and output tuning capacitors as a kit from A 1500w (legal-limit) 2m LDMOS Amplifier. kino250 (1,280) 100%. onboard sensors for supply voltage, supply current, heatsink temperature, output power & reflected power, drive power. This is not an exhaustive list since Continue reading Getting Started on 2m SSB→ Mirage B-34G 35W 2m Linear Amplifier. an output low-pass filter to comply with FCC regulations for harmonic and spurious suppression. IUPPA 50W Portable High Frequency Power Amplifier Short Radio Power Amplifier for USDX FT-817 Elecraft KX3 QRP FT-818 G90 G90S G1M X5105 Ham AMP. Making it any larger, and more efficient at 2m requires too small of Dual GI7b 2 meter Amplifier 150watts out CCS Homebrew: $198. I will even suggest a possible way to use the design on 10M. While Teletec DXP-V175 2 Meter VHF Amplifier 175 Watts 144-148 MHz w/Preamp. 5 KW LPF for 160-6m 1. Good luck. Amplifier Weight: 5. Amplifier Weight: 22. Price updated at 06/27/2024 07:22. 6%. TR1 is the 40602 or 40673 (Dual-gate VHF amp. Oct 8, 2016 · This amplifier is based on the ‘300W Class D Transmitter for 136kHz’ published by the RSGB in Radio Communication and reproduced in the LF Experimenters Handbook by Peter Dodd G3LDO. The amplifier is design for the 2 Meter VHF Band (144 to 148MHz) and supports AM, FM, CW, and SSB operating modes. 7 kg Source of data -- Original-techn. 8 to 54 MHz combiner set Automatic Transverter Interface 1 KW 6 Meter LDMOS Amplifier 2 Meter 80W All Mode Amplifier 1 KW 2M LDMOS Amplifier 1 KW 222 MHz LDMOS Amplifier 500w 70cm Amplifier 1KW 70cm LDMOS Amplifier Efficiency: CW/SSB nearly 70%. Designed to fill a market gap between the low power outputs of transverters and smaller rigs and the 1kW The 2M-PA is the culmination of Ken Holladay K6HCP’s (KLM, Mirage, RF Concepts and now JK Designs) great career designing VHF through microwave preamplifiers! Inspired by EME’er K6MYC, who has blown a few preamps in his day, Ken has built a bullet proof winner with features nobody else has. They are large in size, but perform very well. The power can be varied from High power amplifier for 1296 1 KW SSPA for 1. Brand New · Philips. Next challenge (2Kw) with Two. 2M-1K2 Series VHF 1,200 Watt Amplifiers from M2 Antenna Systems, Inc. RF drive of 10W, 25W, and 50W. 8-72MHz coverage, 600W output, 20+dB gain. 73 shipping. 00 shipping. $799. $5995. Parts Only. $41. The board dimensions are 4" wide by 7. 144 MHz PA with MRF317. BEKO HLV-1000-144 2 Meter Amplifiers. 00 lbs. $12. FREE delivery Mon, Jul 8. 3 MHz - 30 MHz 30W IRF530 Power Amplifier - PA0FRI. 8-54 MHz A 1. Most parts are available on the World Wide Web or at some larger hardware stores. KW,2-meter,6-meter,antennas,amplifiers,preamps,powersupplys, and more. I decided to experiment with Magnetic Loops. Antennas, Keyer, amplifier, transverter, baluns. These are available via the Sensor Port and can be read Low Noise Amplifier 40DB Gain 10M To 6GHz LNA RF Power Preamplifier For FM Radio. $94. £44. The transmitter uses the Motorola MC FM generator chip, followed by a two-stage transistor power amp. This circuit, updated and modified for 630m, uses 2 MOSFETs in push pull driven by square-waves from a CMOS D-type flip flop. By all accounts, this is a great amp, and obviously, works well with the KX3. The HLV-2000 is the ideal amplifier for contest, portable, EME & home station operation due to its small foot print and light weight. ). Amplifiers are a favourite homebrew project. View on Amazon. Great deals on Mirage Ham & Amateur Radio Amplifiers. $30. 5 MHz - 50 MHz 100W SD1446 Power Amplifier - OE2KHM This antenna is a plumbers dream. Multi-meter for power out. These radios include the ICOM IC-706, the ICOM IC-9100, the Yaesu FT-100 and the Yaesu FT-991. Brand New · Unbranded. Buy It Now. The amplifier features a GaAsFET switchable pre-amp, enhancing the overall Andrews Communications Systems. $95. $107. Only 17 left in stock - order soon. Buy It Now +C $86. Tax) prices when ordering. Talk further, longer, clearer! Has 15 dB GaAsFET preamp, works all modes FM/SSB/ CW. Many hams like the challenging of hunting for parts to build a high quality amplifier out of inexpensive surplus parts. This is for Two Meters only 02/11/2014. 5 out of 10 in cosmetics. Description: Four high gain RF FETs, RD70HVF1, by Mitsubishi Electric are used at final stage in the parallel push-pull amp. This project is a 40 meter to 6 meter CW "no tune" transverter using ten 2N transistors. Note: Antenna systems that have a DC short at the feedpoint require an external DC block at the antenna or the separate DC cable from the amplifier to power the preamplifier. incl VAT: £ 246. petef485l (516) 100%. However, some countries require you to pay tax on imported parcels. 8-250MHz working frequency range, a maximum 28dB of gain and over 70% efficiency. Rear of Amplifer and Power supply. It works great on 80m, 40m and 20m as tested by me. ab5ig (5,314) 100%. 00. The fan is quiet and it loads well with drive from 10-30 watts for 600-900 watts out on a bird, my MFJ says more for what that worth. Mark the PCB mounting holes with a pen. Anode voltage 3000 V. Top of Amplier. 3 to 1. I’m currently using a 10-element yagi on 2 meters and 15-element yagi on 70 cm. Tax) £37. 99260, CM97an - former call: WB6MYC. derosnopS. HLV-1000 Specifications: Frequency range. The recommended supply range is 30-50Vdc. Designed, manufactured and assembled entirely the UK, the all new GEMINI linear amplifier is a solid state linear amplifier with 300W output available in 6, 4 and 2m versions. Grid voltage -60 V. Details here. They give you 160 watts of output power from almost any 2 meter mobile or base rig that puts out between 20 and 60 watts, making these amplifiers ideal for your 2 meter mobile The HLV-1000 provides a direct connection to the HPP-144 mast-mounted preamplifier. 46 (Ex. 11 6% off. _ … ^Currently, we have individual amplifiers for 6m and 2m, but no combination amplifiers. Background. Price: $83. 14. The Gemini 64-500 is an ideal match for rigs like the Icom IC-7300 delivering up to 500W on 50MHz and 300W on 70MHz. Was: $24. papers. MRFE6VP61K25H. Lay the PCB on the heat sink. onfastdeal (3,303) 97. Apr 5, 2005 · 10. Price excl VAT: £ 1,957. (6 reviews) Write a Review. M2 Antennas Solid State VHF Amplifiers. 5 in stock. 8. The design follows the classic W6PO design which is described in the Eimac Notes. $11. This may seem rather large, but it was intentional. uses a pair of low-cost MRF300 LDMOS transistors. 55915, W 121. The gray one on the left uses a 50v 1500w device, and will produce sustained 1. Tube amplifiers are a popular project among hams. K. com. Dec 5, 2019 · Jeff (K6JCA) has written a series of posts describing his homebrew project 500 watt HF power amplifier: I started this project back in 2016 — I had finished my Automatic Antenna Tuner (seen in the upper-left of the picture, above) and a PA project that would integrate into my FPGA-SDR and ATU system seemed like the ideal next step. 63. The lowest frequency is 1. 8 MHz at which the impedance of the combined choke is around 1130 Ω inductive. Heathkit HOMEBREW Station Monitor CONTROL FOR ANTENNA MICROPHONES TRANSMITTERS. Auto-SWR, DC line voltage etc. ^Unfortunately, we do not have an amplifier that covers all of those ranges. Free shipping. Vintage Home Brew VFO Frequency Tuner HAM Radio Device National NC Dial. Price excl VAT: £ 874. the downside is that it costs $700. 8 to 54 MHz combiner set Automatic Transverter Interface 1 KW 6 Meter LDMOS Amplifier 2 Meter 80W All Mode Amplifier 1 KW 2M LDMOS Amplifier 1 KW 222 MHz LDMOS Amplifier 500w 70cm Amplifier 1KW 70cm LDMOS Amplifier Motorola Mitrek T43JJA1000BK modified for a VHF 2 meter repeater. Add to basket. 2m 80W Power Amplifier S-AV36. These rugged amplifiers can operate BLW99 Pair New PHILIPS Power Transistors for Linear Amplifier FREE UK Post. An Improved Version. 20 Get the best deals for 3DS Homebrew at eBay. Using the software at the bottom of this page, I worked out that a 36cm length of wire, will need a capacitance of around 3. A 600 Watt homebrew Solid State Amplifier and Power Supply. Remove the PCB and Mosfet device, centre punch the holes. 66. 82. Quantity: Sold individually. These are proper RF power transistors housed in common TO-247 packages. Try the “Other Mode” on 2 Meters Bob Witte, KØNR 10 Dec 2016 In the past decade, a new breed of amateur radio transceiver has hit the marketplace — radios that cover from HF through VHF/UHF frequencies. 0: 3CX3000F7: 46: Push-Pull RF Amplifier Circuit from 1930's (75 Watts) Chapter from the Radio Handbook of, apparently, the 1930's; "Medium and High Power RF Amplifiers" (See figure 1 for this amplifier) 50 - 100 Watts: 31. Oct 27, 2019 · Each individual MRF300 LDMOS transistor is specified at 330W output over a 1. BEKO amplifiers are “the best […] Introduction. Includes mobile mounting bracket. Years back I had helped build a couple of valve (tube in the US) amplifiers using a single 4CX250B on 2 meters. Install the componets for the HV portion of the amp, the Plate choke, the DC Blocking capacitor, the tank circuit. Vintage Bud Radio Power Supply Base Chassis Home Brew Build Amplifier Ham Linear amplifier for sale 4 pill HG-SD1446 with SSB 301 2 Meter 40 watt power linear Linear Amp Gemini 2 144MHz 300W Solid State Linear Amplifier. 51 Dual GI7b 144-148Mhz150 watt continuous duty amplifier,requires 25 watts input power, was built for a repeater, but the club folded Description of a 144 MHz HPA with 2 x 4CX250B tetrodes. $71. Mark the Mosfet mouting holes as well. Power Requirement: 240 VAC 50/60 Hz 15 Amperes. N 37. 68 shipping. Includes built-in QSK-5PC switch. GaAs low noise RX pre-amp included. Being a Linear Amplifier it is suitable for all modes of MIRAGE B1016 2 Meter VHF Amplifier USB OWNER'S MANUAL + B-1016 Schematic KJ4IYE. $381. COLLINS 30L-1 HF Linear Power Amplifier KWM-2 811 Pristine Ham Radio Amateur. We have a great online selection at the lowest prices with Fast & Free shipping on many items! . These Collinear antennas are " 4 " Megs wide and "must be supported" at the top by a yard arm or tree limb. A full featured 100W amplifier will set The amplifier cabinet was constructed from aluminum angle stock which was tapped to allow the shell of the amplifier to be attached with 10/32" by 3/4" binder head screws. Description: 144MHz band 300W amp. Low-loss antenna relay. incl VAT: £ 2,349. Save up to 10% when you buy more. The input impedance of the 813 valves in grounded Grid (GG) is probably 125 Ω resistive. 41 shipping. 0High frequency 100w linear power amplifier diy kits for transceiver hf. This amp kit costs only $300, but the maximum output is only 50W. Lay the mosfet device on the PCB. Frequency Range 144-146MHz. This is achieved through the use of active devices such as transistors or vacuum tubes. A large aluminum heat sink and forced air are required for proper cooling and for A 1500w (legal-limit) 2m LDMOS Amplifier. SKU: 144MHz Preamplifier by HS8JYX This preamplifier can be used with existing 2 metre equipment, or ahead of the 144MHz converter described later. A friend Paul G8WYI and I were are a radio junk sale Nooelec SAWbird+ 2m barebones - Premium Dual Ultra-Low Noise Amplifier (LNA) & Saw Filter Module for 2-Meter Amateur Radio Band Applications. DOC 23. First licensed in 1964; assigned W6PQL in 2003, which was the call first issued to my late father in 1938. 13. 5 element = 9. 5Kg. incl VAT: £ 1,049. After I had this amp in retirement for 9 years, I put it back in service on a second station. This first photo shows two different versions of this amplifier in a couple of the more popular color schemes. Keep in mind that the before 1982, the FCC regulated hams according to input power, so when hams talk about a 1kW amplifier, they are referring to 1kW input, not The home-brew 2M cavity in this book demonstrates one of the easiest way to construct very-workable cavities in the home workshop. 504 in. HL-350Vdx VHF 2m Amplifier. 100 W, Pout: abt. Save Big on new & used Linear Amplifier Ham & Amateur Radio Amplifiers from top brands like Palomar, Heathkit & more. 95 (Inc. Add this amp to your 2 Meter HTor mobile radio and get 200 Watts brutal output. It can be adapted to other HF bands as well. 70 MHz 10W Power Amplifier SD1143. Rear of the Amplifier. +$56. Pre-Owned. Jan 24, 2024 · Kw hf sspa mhz amp w6pql1 kw sspa for 1. Drill the holes with a 2. However, someone else might learn from our mistakes, or even perhaps someone can tell us why it did not work. incl VAT: £ 1,349. Apr 1, 2012 · 1Kw 2m LDMOS Amplifier with 50v LDMOS transistor made by Freescale MRFE6VP61K25H. 500 in. The Gemini 64-500 uses a ART700FH LDMOS. 12. 50. These RM ITALY LA Series VHF HT Linear Amplifiers are perfect for mobile use with an HT! 144 MHz ~ 148 MHz 2m VHF AMPLIFIER. These are suitable for low power data modes or CW but struggle on SSB – many operators are looking for a step up with a linear amplifier. 50 lbs. Vintage Home brew Transmitter Geloso SA Ricevitore Meter Ham Radio. RF or hard switching. A 2 meter power amplifier. Shop 8, 41-51 Bathurst St, Greystanes, NSW 2145. High Voltage: 3300 V full load, 3600 V no load. are a true breakthrough in high power 2 meter amplifiers. One interesting feature of this amp is that the software is all open-source and Talk further, longer and clearer and reach distant stations and repeaters. HL-355Vkx 300 Watt VHF 2m Amplifier. It has an input power of 1-8W, making it ideal for handheld radios. Brand New. Building instructions for the NEW WB3AYW Collinear Antenna. Outside of warranty units can be sent to us for inspection/quote/repair using OEM factory 100 W Linear Amplifier for HF bands OH2NLT and OH7SV: 450 watt 6m 50MHz Ham Radio VHF Amplifier: 500 WATT PA by SM0VPO: 600w 23cm LDMOS Amplifier,W6PQL: 813 Linear Amplifier Project,WB8ERJ: 8877 Homebrew Amplifiers- for 160-10 meters, NY1E: 9A3MR HF power amplifier using GI7B: 9A6A - mono-band linear amplifiers for 160m, 40m and 20m Magnetic Loop Antennas. Sep 8, 2018 · Homebrew Coaxial Dipole for VHF or UHF by W6NBC Here’s a base station antenna you can easily build for 146, 220 or 440 MHz. 99. 2002. Price excl VAT: £ 205. BEKO HLV-1000-144 2 Meter Amplifiers supply up to 1,000 Watts output for the serious DX enthusiast! These amplifiers employ advanced solid state technology to deliver their incredibly-high output power. Homebrew hero N6QW always recommends to get the audio part going first, so here we go. 87 x 8. The bias current is preset to 500mA and can be readjusted by use of an independent potentiometer. 71. Dip the Tank coil for resonance at the frequency or frequencies if RM ITALY VHF HT Linear Amplifiers are broadband, compact amplifiers covering 135 to 175 MHz. The Gemini 64-500 is an uprated unit based on the Gemini 4 300W amplifier. Performance is equal to a J-pole, but it’s smaller, less obtrusive and more weatherproof. It requires about 2000VDC at 500 MA HV, 300VDC 25 - 50 MA Screen, 50 / 100 Jul 13, 2015 · This is a 100W amp, specifically designed for the KX3. Dimensions: 18 1/2"D x 17"W x 10"H. 5 mm drill bit. This page provides information on the design and practical implementation of a rather inexpensive 144 MHz high power amplifier using a pair of ceramic tetrodes, type 4CX250B, in a push-pull configuration. Tax) Customers outside the UK pay the lower (Ex. The amplifier is designed to provide a linear response, meaning that the output signal faithfully reproduces the input 4-1000 Home Brew Amp Grounded Grid AB2 (1500 Watts output power, all modes) This amplifier was put into service around 1992 and was replaced by the 3CX1000A7 amplifier in 2010. 4 dBd Gain. This produces a 250 Watt amplifier and has a strip line inductor to match the output. Bandpass filter for 2m. The Product detector and audio amplifier: Figs. UK Manufactured by us here on the Welsh Borders. By studying the specifications, it looks like with correct broadband matching and some operational safety margin we can get close to 600W output Compact dimensions – just 270w x 300d x 120h mm. RF-sensing t/r switch for remote operation, as well as a hard-key option. , Limited 1. That should go well with my homebrew six element yagi at 40 feet. 5" long. Vital Opening Concepts Feb 21, 2018 · Elevate your communication capabilities with the BTECH AMP-V25 Amplifier, designed to amplify your handheld radio's power up to 40W * (*peak 30W average), enabling more robust and clearer transmissions across the VHF band. Be prepared and able to communicate in case of emergency with the largest selection at eBay. Construct your MAIN high voltage supply for this amp (hopefully you already have a test supply and a variac to test this thing on low voltage first). Their goal has always been to offer the most carefully designed, high performance antenna products. Apr 15, 2021 · 2m/440 Power Amplifier for D-Star. I found that with my IC-9100 I didn’t really need the 2 meter preamp but the 70 cm preamp is very helpful. Linear Amp Gemini 64-500 – 50/70MHz DUAL BAND 500W Solid State Linear Amplifier. Opens in a new window or tab. Place to one side. Now fitted with the ART1K6FH LDMOS to give 1400W max output. The Gemini 2-1. 00 View Now. 73, Jim, K5ND Jan 1, 2018 · Building one of these amplifiers is at least 50% an exercise in mechanical engineering. An input level switch selects proper input power from your HTor mobile radio. 94. Nov 6, 2016 · Hi Brad, it is a balance of antenna, coax cable loss, and receiver sensitivity. The amp is complete with 2 blowers but less power supply. I am using the Triode Board built by G3SEK (2023 appears no longer avaialble). The DX Shop Limited are proud to be a factory appointed dealer, distributor and service centre for all Acom products. Apr 18, 2020 · My first home brewed 2m VHF linear amplifier with 2 stages for 144-146 Mhz. Used MRF208 driver and 2N6082 final with 2W input and 25W output. LA0BY, last updated 18. +$23. 144 MHz 1. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network. “Designed for Weak Signal, Tropo Scatter, Meteor Scatter, Digital, & Contest Operation!” The BEKO HLV-2000 employs advanced German-engineered, solid-state technology to deliver instant on, no compromise performance. radwa6 (2,156) 100%. 90. Fast & Free shipping on many items! The B-310G Mirage 100W 2m Linear Amplifier is a powerful device designed for radio enthusiasts. Free returns. It’s a simple regenerative receiver for AM, SSB, CW, FM. This two-element Cubical Quad antenna is designed for use on either the 10-meter ham band or the 11-meter Citizen's Band. A collection of projects for Amateur Radio Homebrewing enthusiasts. When all was said and done, my SWR readings were 1. I have actually used the technique for successful duplexers on 2M, 70cm and 6M. The children are all grown up now, on their own, and doing O. 8 to 54 MHz Dual Directional Detector 1. 3 MHz - 30 MHz 45W SSB Power Amplifier IRF530 - YT2FSG. QRP for HF is now popular – rigs such as the Yaesu FT818 or low power SDR transceivers are readily available. or Best Offer. 5 inch / 378 x 210 x 368 mm Notes Identical to SB-220, but in lack of 10 meter band. Free 4 day shipping. Amplifier Weight: 20. Sputnik regenerative receiver has decent receiving capabilities. Was: $12. Zero signal anode current 250 mA. 41 watching. Fully protected by high SWR protection. 5kw in SSB/CW modes but must be limited to about 1200w for JT65 EME and other digital modes. Brand New · Mirage. It was designed for beginners to help them improve their knowledge in The MiniPA Linear amplifier for HF – in practice. VHF linear amplifier pictures. Screen voltage 325 V. 2m Masthead Preamplifier. +$12. 144 MHz Kilowatt Amplifier with a Gu74b. Operating Weight: 76lb. C $394. It is Class C bi 2X ANT-309 Car Radio Antenna - Universal Car FM Radio Antenna Patch Black5037. With a frequency range of 144-148MHz, it supports both FM and SSB modes. The output power is an impressive 100W, ensuring a strong and clear signal. Henry Tempo 2002A 2 Meter All Mode \"3CX800A7\" 1,000 Watt Linear Amplifier For Sale When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. 7 on the 10-meter band. Available in two models, the only difference is that the LA 144 is 4 W in and 60 W out, while the LA 145 is 4 W in and 85 W out. Shop our extensive selection of products and best online deals. 144 – 148. We proposed to run like this. Tip: Use a clutched drill on a low slip setting. $22. Thanks for inquiring about our amplifiers - at this time we manufacture HF amplifiers that cover 160 m - 10 m and we also manufacture a standalone 6 m amplifier. Vintage Home Brew Radio Station WKKM Remote Amp 60's-70's WKKM Bx-4. and mixer. 145MHz Center Frequency. 1. 12. Supplied with mast clamp. Pre-Owned · Collins. Homebrew page with some great homebrew gear shown here. The data sheet for the 4CX1000A gives the following as typical operating conditions. click a picture to enlarge. Operate with 250 mW to 10 Watts input on “Lo” or 10 Watts to 50 Watts input on “Hi”. Owned this amp about three months now, was used but looked like new. W5IB Rating: 2011-10-14; Great Amp !!! Time Owned: 3 to 6 months. We are the leading topmost linear amplifier manufacturer in Australia to sell online linear amplifier at wholesale prices up to limited period for our worldwide customers. 6pf, and around a 50% efficiency. Amplifier, vacuum tube, receiving beverage loop vertical and transmitting High power amplifier for 1296 1 KW SSPA for 1. Amplifier done ! + power supply (lot of parts from Jim W6PQL) Amplifier done, Power supply in progress. Or fastest delivery Wed, Jul 3. form. 05 lbs. 40m 10W IRF530 Power Amplifier KN-Q7A. 0: 35-TG The RF linear amplifier is a device used to amplify radio frequency signals. 4CX250B X2 K2RIW style 2m amplifier. Bet you didn’t think about that! You also get into managing 50V 50A, bias circuits, RF switching (both low and high power), PCB design, control circuits, thermal management, filters, on and on. 2K is a solid state 1200W+ CW output Linear Amplifier for the 144-148 MHz amateur band. 77 shipping. Detailed Views and Specifications. Build your own it iseasy!. Mirage VHF/UHF Amplifiers. Low. 8 MHz - 30 MHz 5W Power Amplifiers - W8DIZ. 04. Dimensions (WHD) 14. It operates by taking a weak input signal and increasing its power level while maintaining the same waveform. 25 x 14. About 12 yrs old, good working condition and 7 or 7. Big power supply 2x50 VDC/60A. 75. Great deals on 2 Meter Ham Radio Amplifier. 8-54 mhz Amplifier hf ldmos broadband devices qrpblog evolvingAmplifier hf linear homebrew. 17. 8 to 54 MHz combiner set Automatic Transverter Interface 1 KW 6 Meter LDMOS Amplifier 2 Meter 80W All Mode Amplifier 1 KW 2M LDMOS Amplifier 1 KW 222 MHz LDMOS Amplifier 500w 70cm Amplifier 1KW 70cm LDMOS Amplifier High power amplifier for 1296 1 KW SSPA for 1. 1200 W. Cathode voltage 0 V (cathode grounded for DC+RF) Output power 1630 W. Due to its high gain HL-355Vkx accepts wide range of drive power from 1W to 50W, achieving 25W to 320W of 18. $255. 11. Mirage B-2518-G 2 Meter Amplifiers are their most popular VHF Solid State amplifiers. Weight just 10Kg. 00 Page: 1 Operating manual for the 144 MHz High Power Amplifier using 2 x 4CX250B valves by Stefan Heck, LAØBY/DF9PY, April 1991, revised April 2000 General description The amplifier was designed for high power operation in CW or SSB mode and employs a pair of ceramic tetrodes type 4CX250B in push-pull configuration. First, I tried something simple. Driver power ca. Price excl VAT: £ 1,124. Designed, manufactured and assembled entirely the UK, the GEMINI linear amplifier is a solid state linear amplifier I have a homebrew "Plumbers Special" 2M amp using 2 4cx250B tubes that runs 1 KW input PEP and about 675+ Watts PEP Out. All ACOM amplifiers come with a 2 Year Warranty backed up with a full factory-backed service and repair in our own workshops here at The DX Shop. 55. Net weight (2. No shipping to 3rd parties and long waits. 10 element = 13 dBd gain. Amplifier contained 500w 70cm 150w 23cms 70cms telecom rf radioworldAmplifier hf cw ssb fsplanet A600 hf/vhf 600w linear amplifier kit v2. PLEASE SEE WEBSITE TOP BANNER REGARDING CURRENT DELIVERY TIME. Bird Thruline 4522 Radio Repeater 19" rack mount Panel Wattmeter w/ No Slugs #2. I have seen amps made where the builder claimed 750 watts and that may well be possible just running SSB service. Whether you're setting up a mobile radio in your vehicle, a high-power field radio, or a home base station, the AMP-V25 is Jun 25, 2021 · TE Systems 1410G 2-Meter 160 Watt Amplifier Tokyo HY-Power HL-510V Reis SE 200 XL/A 2m amp TE Systems 0552G 50 Mhz 375 watts linear amplifier RF Concepts 2-417 170Watt 2 Meter Linear Amp Q5 Signal 23/24cm power amplifiers Q5 Signal 70cm power amplifiers Alinco ELH-24B Alinco ELH-260D 2m 60w amp Dressler D200S W2DTC's HOMEBREW 3CX3000F7 TRIODE GROUNDED GRID HF LINEAR AMPLIFIER: Schematics at bottom of page: 5,000 Watts: 20. 52 shipping. Ameritron AL-82 Variants (all contain two 3-500Z graphite tubes) Base Model. Grounded grid linear power amplifier for 80 to 15 meters HAM bands. View of anode circuit ------>. A solid state amplifier for HF and 6 meters band by N4IP. 144 MHz ~ 148 MHz 2m VHF AMPLIFIER. Describing this amplifier may seem a really silly thing to do, as it never worked well. A 145MHz 2m loop. 2 lb = 1 kg) 50 lb (50 lb 0 oz) / 22. $65. The front panel was constructed from a commercial piece which was Bud PA-1109 – Aluminum Panel (15 ¾”x19”x1/8”) - Light gray textured . Apr 6, 2005 · By all accounts a pair of 4CX250B's should have no problem providing 500-600 watts with 2000 volts on the plates. The aim was to minimise the effect of the choke on the input impedance. It still works as it did from day one. This page describes the construction of a 1500-watt 2m amplifier using an 8877. Hobbies other than amateur radio include wine making, precision shooting, golf and tennis. A configurable input attenuator capable of matching any driver ranging from 50 milliwatts to 10 watts. *** Note: Amplifier Color may vary. HardRock-50 Power Amp Kit. 2M-HPA. It was designed for the 40m amateur radio band. B-320-G 2 Meter Amplifiers have an input level switch that lets you select the proper input power from either an HT or a mobile or base radio. pcobra93 (4,953) 100%. Telephone: (02) 9636 9060, (02) 9688 4301, (02) 9896 8972. First and foremost, a high Q miniature Helical Two 4CX1000A’s in grounded-screen push-pull – an amplifier that did not work. New Product Dual Band 2m 70cm Power Amplifier Tc-vu50 , Find Complete Details about New Product Dual Band 2m 70cm Power Amplifier Tc-vu50,2m 70cm Power Amplifier,Dual Band Amplifier,Dual Band Power Amplifier from Amplifier Supplier or Manufacturer-Quanzhou Truest Communication Co. Fast & Free shipping on many items! 750W SSB/250W FM Handling. jy ug dd zw qs hr jm xw zf xy