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    NEW STUFF!
  • NEW RockMite][++ with band modules capability!
  • NEW extruded aluminum case for RockMite][++
  • NEW RockTopper][++ WITH extruded aluminum case!
  • NE HamXposition 2024: QRPme Buildathon Registration & KIT!
  • QRPme 2024 4th Buildathon registration
  • QRPme 2024 3rd Buildathon registration
  • QRPme 2024 2nd Buildathon KIT
  • QRPme 2024 1st Buildathon KIT
  • LOBSTERCON2024! A FUN QRP camping weekend in Maine!
  • QRPme POCKET PAL ][+ ...A handy dandy hamfest QRP parts checker
  • SPECIAL PURCHASE ADJUSTMENT

  • Miscellaneous Parts
  • Quintessential Bulletins
  • Construction Notes
  • Contact Us

    Kits:
  • W1REX Open ALL Night Hamfest Table
  • Special #1 PCB "Independence Day" Building Bundle
  • Special #2 Manhattan Scratchbuilding Special
  • Two Tinned Tunas (EZ Build)
  • Sudden Storm Kit
  • Rexwood 1000W Receiver Kit
  • 80m SUPER Tuna Band Module
  • 40m SUPER Tuna Band Module
  • 30m SUPER Tuna Band Module
  • 20m SUPER Tuna Band Module
  • Two Tinned Tunas
  • Tuna Tin 2 Kit
  • Reggie II Kit
  • Sudden StormII Band Module Upgrade
  • Sudden Storm SOUP-UP kit
  • Tuna Helper
  • Texas Topper
  • Block_Toids
  • Tuna Topper II+
  • Tuna Power System Kit
  • Pocket PAL II Handy Dandy Hamfest parts Checker
  • Picnic Table Outlets Kit
  • Picnic Table Outlets Upgrade
  • Manhattan Chowder Kit
  • Island Cutter Kit
  • Zomboids Prototyping Kit
  • Preparation T Kit
  • Kids Kit#1 - Learn the Code
  • Numerical Frequency Indicator
  • Numerical RST Indicator
  • MePADs for DIP ICs
  • BIG MeSQUAREs
  • RFP RF Probe Kit
  • Night Sender KEY
  • Lobstercon Maine Bugs 2 Kit
  • Match-less Dummy Load
  • Match-less OP LEDs
  • UK Bugs Kit
  • Picaxe Hatchet Kit
  • Match-less PowerON LED
  • AXEme Picaxe Construction Kit
  • Match-less IC Proto
  • Match-less Audio OSC
  • Tuna Construction Zone
  • Tuna Project Board
  • Tuna Construction Zone - Tip Cleaner
  • Tuna Tunah
  • Lil Squall Transceiver ][
  • SUPER Tuna PicoKeyer Kit
  • SUPER Tuna ][+
  • SUPER K Keyer kit
  • 2011 FDIM Build-Along kit mailed to your door..
  • 2011 FDIM Build-Along kit to build @ FDIM
  • Tuna Tin 2 40th Anniversary Issue
  • Dummy Load Construction Set
  • OLD DOCUMENTATION
  • Lobstercon2015!
  • Lil Squall Band Module Pack
  • Toroid EZ Tools
  • Ca Bling! Pacificon Buildathon kit
  • 49er Picaxe Pacificon Buildathon kit
  • Picaxe Playset
  • SUPER Tuna Prototype Band Module
  • Super Tuna 10 Meter Band Module
  • 2014 FDIM Buildathon Kit
  • Lil Squall 10m Band Module
  • Sudden Storm 10m Band Module
  • BCI Filter / MePad kit
  • Micro80D
  • SBSS
  • HOLEY TOIDS!
  • PAIR of SBSSs
  • FDIM 2013 Buildathon kit Mailed to your QTH
  • Beaconator][
  • Texas Topper ][+ 5 band SPECIAL!
  • DX Tuna can & POSTAGE
  • Tuna & Texas Topper Band Module pack
  • MeTubes
  • Quality Tuna Housing
  • Hollow State Design Book & MeTubes Panel
  • Rockmite ][ 80m Transceiver
  • Rockmite ][ 40m Transceiver
  • Rockmite ][ 30m Transceiver
  • Rockmite ][ 20m Transceiver
  • Rockmite ][ Accessory Parts kit
  • Rockmite ][ Enclosure - LMB Gray/Blue
  • Rockmite ][ 40m Power/Efficiency Mod kit
  • Rockmite ][ 20m Power/Efficiency Mod kit
  • MePads DIP & SOIC, BIG & little MeSquares, MeTubes Sample
  • Maker Sender
  • Maker Sender 6-pack
  • Maker Sender 12-pack
  • Rockmite ][ Enclosure - Hammertone Green
  • Rockmite ][ Enclosure - BLACK & BLACK
  • Rockmite ][ Enclosure - RED
  • Rockmite ][ Enclosure - BLACK & RED
  • Rockmite ][ Enclosure - BLACK & YELLOW
  • Rockmite][ 30m Power & Efficiency Kit
  • Rockmite][ 17m Transceiver Kit
  • Rockmite][ 15m Transceiver Kit
  • Rock-Topper 5 watt RF Amp
  • Z-Rock Tuner
  • TEXAS Topper to Rock-Topper Enclosure Upgrade kit
  • Texas/Tuna Topper 20m band module kit
  • QRP-ARCI FDIM 2015 Buildathon
  • QRP-ARCI FDIM 2015 Buildathon kit mailed to you.
  • Boxboro Buildathon Registration
  • Limerick Paddles with built in PicoKeyer chip
  • RockmiteII PicoKeyer chip ver. 45
  • Tuna SUPER PaLooza!
  • 40m Tuna-PaLooza!
  • FDIM 2016 Buildathon
  • FDIM 2016 Buildathon kit PICKUP @ FDIM
  • Worlds Biggest Buildathon kit
  • Sea Sprite Transceiver
  • LOBSTERCON2016!
  • An x-BRASS Set
  • Maker Faire Morse Sender 2016
  • Maker Faire Morrse Sender 2016 (box of 10)
  • UKs BIGGEST Buildathon
  • STIX MePads & MeSquares panel
  • DX Custom Buildathon
  • QRPme Christmas Stocking....TUBBY
  • QRPme Christmas Stocking....SKINNY
  • QRPme Christmas Stocking...QRPp
  • Tuna RF Monitor
  • FDIM Buildathon 2017
  • X-CHECKer Crystal Grinding OSC/FC kit
  • Lobstercon2017!
  • Crystal Grinding Accessory Pack
  • NEQRP Boxboro Buildathon 2018
  • Rockmite II SKINNY kit
  • Sudden Storm 7
  • Lobstercon2018!
  • Simple Accurate Directional Wattmeter - FDIM2018 Buildathon
  • Two Scouts Night Sender Key
  • TWO....Two Scouts Night Sender Keys
  • FUNKeYer
  • FUNKeYer 10 Pack
  • QRP Directional Wattmeter
  • Lobstercon2019!
  • Rocky Mt. Div. 2018 Convention Friday Buildathon
  • Rocky Mt. Div. 2018 Convention Saturday Buildathon
  • Limerick Scouts Night Sender Key
  • FDIM Buildathon 2019
  • Rockmite][ 10m Transceiver
  • SPECIAL PURCHASE ADJUSTMENT
  • O*Scope FUN board
  • WWVR Receiver -updated Duke City 2019 Buildathon
  • NEQRP Buildathon at HamXposition 2019 at Boxboro MA
  • MePads for SOICs
  • small MeSQUARES
  • Corn Challenge Prototype Board
  • 4-OCTAL MeTubes panel
  • Lobstercon2020!
  • WWVR Band Module
  • QRP-ARCI FDIM 2020 Buildathon
  • MePads - SMT-A
  • Acorn Tube 2 Cigar Box Enclosure
  • FREEKey
  • 20m Sender Kit
  • mini-Sudden Receiver
  • mini-Manhattan protoboard
  • Lobstercon2021!
  • QSO Today Aug EXPO Learn to Solder Workshop kit
  • QSO Today Aug. EXPO Intermediate Kitbuilding workshop kit
  • CT-1 RF Probe kit in a test tube*
  • Rockmite 80m Power & Efficiency kit
  • 03/22 QSO EXPO Intermediate Buildathon - Switched Inductor Tuner
  • 03/22 QSO EXPO Learn to Solder Buildathon - WBB Transmitter
  • Tuna Project Board 211
  • Tuna Project Board 401
  • Tuna Manhattan Construction Project Board
  • LOBSTERCON2022!
  • SEAT & KIT -> FDIM 2022 BUILDATHON TTL Trasnsmitter: A Pocket F
  • MAILED -> FDIM BUILDATHON TTL Transmitter MAILED to your QTH
  • RockTopper Amp 80m LOW PROFILE Band Module
  • 2023 NE HamXposition Buildathon Kit
  • QSO Today HAM Expo Saturday 9/17/22 Buildathon
  • QSO Today HAM Expo Sunday 9/18/22 Buildathon
  • QSSA & QSST Buildathon kits upgrade
  • Manhattan Construction Starter Set
  • BOLO Tie / Emergency Key kit
  • XMAS22 STOCKING GIFT
  • QSO Today BUILDATHON KIT (#9) SST+ on Mar 25 2023
  • Lobstercon2024!
  • MePads - SMT-B
  • FDIM 2023 Buildathon = Pocket PAL ][+
  • FDIM 2023 Buildathon = Pocket PAL ][+ MAILED TO YOUR QTH
  • Tuna Tin 2 LIVE stream Buildathon (JAN2024)
  • CP SIGHTer - QRPme 2024 Live Streamed Buildathon #2 registration
  • FDIM 2024 Buildathon registration & kit
  • CENTO RECEIVE - LIVE stream Buildathon #3
  • 2024 Northeast HamXposition - QRPme Buildathon Kit
  • QRPme LIVE stream Buildathon #4 CENTO x-1er-O
  • Rockmite][++ Transceiver kit
  • New extruded Aluminum case for the Rockmite][++
  • New Rock Topper Amplifier IN extruded Aluminum Case
  • RockMite ][++ 80m Band Module pack
  • Rockmite ][++ 30m Band Module pack
  • Rockmite ][++ 20m Band Module pack

    • Rockmite ][ 40m Power/Efficiency Mod kit

    Price: $10.00
    US orders:
    DX orders:


    This kit contains the caps, toroids, and magnet wire neccessary to implement the special Cauer output filter and transformer coupling for the Rockmite ][ 40m Power/Efficiency mod.



    Documentation
  • RM][-40 PwrEff Mod
  • RM][-40 v3 PwrEff Mod
    • © 2023 W1REX - QRPme