Homebrew 80/40m SSB/CW Rig - #10 Low Pass Filters

[@jackm416]

Thanks for the clear/methodical outline of the design process of the filter(s). I really enjoyed it!

[@CharlieMorrisZL2CTM]

Glad it was helpful Jack.

[@4youian]

hi Charlie, hope your cold gets better soon. All the best, Ian

[@Tony770jr]

Do you have a video on how to select the appropriate toroid core for frequency and power?

[@raafatalheety826]

Thanks

[@daviddavidson1372]

Love the plugin method.great video

[@DollySvengali]

I did one like that last week, but I cheated and got the values out of the arrl handbook. They have a chart. I did mine for 3.9mhz and the values were quite close to yours. I even had to bodge the middle capacitor out of a couple others like you did. Have a good trip.!

[@indrajitR]

thanks seen all parts vedio series. you have good equipments. Have you tried parallel two irf840 final RF amplifier for say 80 meter /40 meter ???

[@CharlieMorrisZL2CTM]

No, but I have looked at parallel IRF510s and parallel BD139s. I'll take a look at the IRF840.

[@Paul_VK3HN]

One question that often comes up, how to determine voltage rating of caps for a given power level. Work out p-p for power level and add a safety margin. Might be worth some commentary. Also, What's your Sig Gen Charlie?

[@chibill_mc]

I finally got myself some mixers and also upgrade to general. :) I got 5 TUF-1SM for 1 USD each. Not as good as SBL-1 but they will work for me.

[@CharlieMorrisZL2CTM]

Excellent, well done. Now for some homebrewing!
Charlie

[@edb.793]

Charlie, what kind of filters are those?

[@CharlieMorrisZL2CTM]

Hi Ed. I just know them as halfwave LPFs. Not sure if they have another name or not. They work for me.

[@TheArtofEngineering]

Mr Morris....I'm making my QRPP transmitter QRP and needed to improve my filter....awesome video! Thanks for sharing. de VK2AOE

[@CharlieMorrisZL2CTM]

fantastic. I'm pleased it was useful.

[@vladimirm8443]

Hi Charlie output Vatt? End inpyt mvatt?

[@CharlieMorrisZL2CTM]

Sorry Vladimir, I don't have that data anymore.

[@vladimirm8443]

@@CharlieMorrisZL2CTM Hi Charli for the power amplifier its based on the irf510. ? Inpyt mvatt? And output vatt?

[@mannaf.t]

Thank you

[@moustaphamuhammad7013]

Good job, Thanks.

[@adiyb7uui]

LPF wow