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On Mon, Nov 4, 2024 at 06:41 PM, Eric wrote: Ooops... my bad! LOL I didn't even know there was an "Electrical Improvements" thread here. I can delete my post if desired... *ON EDIT:* Post deleted.

On 11/4/2024 12:02 PM, Alan - W5ARM wrote: > /On Mon, Nov 4, 2024 at 12:28 PM, Bob wrote:/ > /You mentioned never open the neutral. Earlier talking about a shock > by touching the stove and

It was in the Electrical Improvements thread on this group. Eric

Alan, It wasn't me. Someone wrote that it happened to them. Maybe it was another group? Bob W4JFA [email protected]> wrote:

Alan, I have touted this modification on here for years now. ?I’ve explained as you have numerous times. ?Hopefully this finally sinks on. ?The folks at Henry May be good RF engineers but fell

Alan, That dual 240v receptacle you have pictured is exactly what I have in my shack. I looked for one locally with no luck. Like you said, Amazon had it. You mentioned never open the neutral. Earlier

Wow... nice! Well then, sorry for the long dissertation on power systems... *:-/* But yes, the jumper trick works perfectly. Super-easy with no permanent mod's to the amp. And, you can properly ground

I was considering the modification you suggested.......and also wondering about the design choices made by Henry. ....retired EE that paid for tuition as an electrician.... It was a powerful

There is nothing to "isolate", with respect to the neutral and grounding systems, within the amplifier. They are not inter-connected in any way; the amp is NOT grounded by the green wire. The "green"

Hello Eric, Sorry, I'm a little late to the party on this one, however I will inject my 2-cents worth... I have a few Henry amp's (four, to be exact) as well as several other brands & models (i like

well, it should be obvious some CB'er tried to make it work on 27megs. I note one inductor looks un connected on the loading side as if someone had it configured as a Pi-L at some point? Meanwhile I

Typ overall ( OUTPUT ) network Q in an amplifier is 12.? ( input Q of 10..and an output Q of 2).? Typ that Q is used so the harmonic suppression is good.? Lower Q = less harmonic suppression. On a

The plate load Z of the tube is fixed.? ? The 50 ohm output is fixed.? ?The PI net just matches the plate load Z to 50 ohms.? ?Knowing the typ load Q you want, the rest is easy....... as you can

Continuing on the subj of plate chokes, since that is what the worst linear pic triggered me on And incidentally its customary to tie the plate(s) of the tube to the top of the rfc, with the top cover

I was wondering if multiple plate chokes would take care of the series resonance problems across HF spectrum....and it sounds like this is is the case.. Eric WB6TIX

Hi Jim, Small roller coils are available at Dr.Alex UR4LL in Ukraine. "small roller coil" is about 4?H, "compact roller coil" about 2?H. Great for input circuits of GG amps.

That Pentalab data sheet on DXE's? site is incorrect for airflow....(3CX-3000A7) .? ? It's? 67 cfm @ 1.2"? for 4 kw CCS anode diss......and that's for 40 C (104F) intake air temp.? If the actual

Some possibly demented thoughts...... In (nearly) all cases, if the frequency of operation, and impedances at both sides of the matching network are known, the needed component values in the network

Well that would work! Bob W4JFA [email protected]> wrote:

Two plate RF chokes in series were used in the homebrew 4-1000A amplifier that I designed and built in the early 80's and is still in reliable service at my 4X4NJ station. At the time, I didn't have