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Does anyone make a retrofit module for tube amplifiers that can monitor key parameters remotely, ideally via Ethernet. I could build something but if something is available ready-made, I would rather

Thanks Clark, This looks like a quality design. I'll hold fire and watch this thread before I purchase any chokes. Mike

Mike. This is the choke we are discussing. Jim is working on a better, high per version. Plate Choke 10 thru 160 Meters –

Hi Clark, Please share a photo of the choke with the ferrite for reference. I'm currently seeking both filament and plate chokes for this GI7B HF amp circuit. https://rebrand.ly/dl0 Thanks, Mike Peace

Yes I am aware how Plate modulation works and the voltage there. However, I also have a HB transmitter, It uses a pair of 4-400s from 10 to 160. 3600 volts. The Modulator has its own power supply and

## agreed.? Every newbie and his dog runs FT-8....esp on 160m.? ( all bands really, but most folks don't hav

## The floyd choke ? That's why I well label all ferrite.? U don't wanna ever mix em up.? U can get identical dimension beads? in type 77? / 31? /? 43? /? 61.? They are all the same color.?

I would like to point something out before I take my wife out for a Valentine’s Day lunch and then get to work Jim’s choke will be tested at a high duty cycle 100 percent. Theirs a big difference

##? This I briefly? dabbled with years ago.? ?Even with 2 x chokes, say at right angles, and a 1-2"? distance between the horz, smaller? choke, parallel? to the chassis..... and the?bigger,

I can assure you the Floyd chokes do not blow up. You know that also. It must be like you said, a different material. I have used those chokes in several amps. A Dual 3-1000Z amp with 6kv on plates,

I have an 8410; however, according to the schematic(s), it appears as if it probly uses the same wattmeter as the 9500. The other day, I encountered intermittent flashover in my external antenna tuner

<Jim. Thanks for the Post.? That is a real eye opener.? Sadly, I placed a Choke very close to the back wall of my amps.? It seems to run ok but that is great information. <I remember us talking

I am interested in learning more RIkki. This is how one of my respected amplifier builders always handles the plate choke. He uses two, Never switched. Each tuned. Sounds like a good solution.

Instead of a loaded plate choke with all its issues, I used two separate chokes located to eliminate (or minimize) undesirable coupling between them.? The series resonances of each individual choke

The reason a 4' length of magnet wire on the carpet? ( same 22 ga) runs at room temp, vs teflon coated wire on a choke is...? the heat can escape on the 4' length.? ?I stuffed 5 amps? ccs though

Ok, here's the deal.? ?Room temp is 70 F. Scott's choke elevated 3" above kitchen table, straddling the corner of a Styrofoam packing? container.? The entire winding is in mid air.... and only the

I'm gonna use my 0-30 vdc @ 3 amp, current limited lab supply and run 2.5 amps CCS of dc current through it for? 10 mins...then test for heat on any of the cores..? ?and then quickly test with

Under a brick on key condition duty cycle test

Can’t wait to receive it and try it out

Jim. Thanks for the Post. That is a real eye opener. Sadly, I placed a Choke very close to the back wall of my amps. It seems to run ok but that is great information. I remember us talking about these