开云体育

When Drake ran out of the original switches, all they could get for replacement purposes was the white colored ones.

Jim, thank you for the reply. I agree I should do a meter recalibration. But It was working, and now i am getting low power out. If anyone else have some suggestions of what i should look at? Is this

I have a simple solution for the power switch. While I have replaced the back end of the switch and I have a spare kit I got from Nationwide Radio, KE9PQ. I leave the power switch on all the time. My

Regardless of the amount of “leakage”, it becomes irrelevant when one considers safety concerns, which dictate that any high voltage amp or power supply should be disconnected from the AC line and

Hi Steve, Yesterday, I finished rewiring the? Loudenboomer PSU ( L-4B transformer) from 120 to 240AC using 2 SSR's. I know they have a little leakage but it really isn't much. Just now, I measured

Hello all, I use these solid state relays, as well, and they are great! One thing to be aware of I'm told, as I've never experienced it myself, there is a small amount of leakage thru the switching

So "A" is closest to the metal panel? I have an ulterior motive. Another "old radio" project. It's a Collins KWM-2. I made up a circuit to fix its abysmal CW support. That little board mounts behind

Usually they are sequenced front to rear (A, B, C) then front or back. Study/follow the schematic to prove this out. They can be a bear to replace, but it can be done. -- 73, Kevin, K8KVN

I think either are fine of course... I found a seller on eBay that was selling those 240A45's for about $10 each (new old stock) I couldn't pass them up!? so I bought 6 of them! Then I found a

Rick; I did note that you were using AC controlled SSR's... Using an AC-controlled SSR for a "switch-saver" installation inside an L-4PS (or L-7PS) looks to be simpler and cleaner than my solution

Does anyone have an MN-75 meter bezel that is surplus to requirements? --lyndon

You might have missed it.? I'm not running DC controlled SSR's.? I used AC controlled SSR's specifically? so I wouldn't have to have a separate powered DC supply.? The switch still switches AC but

On Mon, May 6, 2024 at 08:00 AM, Rick W4XA wrote (on the "L7 fails to Key" topic): Rick; The 2-pole (240VAC) GFCI breakers trip on leakage from either side to - ground -. I have it on good authority

I guess my reply on the other thread should have been here! This would be essentially turning the L-4/L-7 front panel switch into a front panel "Hood Ornament" On another note, Isn't MFJ "disappearing

Mark, yeah I agree? having powered circuit running all the time can present problems. (like having a wall-wart installed inside the box) I referred to the "ZR" article to mention the SSR's in general

I have clean very good working 28xxx serial number R-4C for sale. It has the noise blanker with stock filter. $400 plus shipping. Dan K9DTC

Permalink to this message thread: /g/DRAKE-RADIO/topic/93458618#msg67295 "Mark Davis via groups.io" <markad7ef@...> wrote: -- 73 -Jim NU0C

What has worked for me for years is to use an Ameritron/MFJ ICP240 or ICP120 to turn my amps on and off; the power switches in the amps are left on. ?However, in spite of the advertising, these are

All good. [email protected]> wrote:

Evan, Okay on the rain. Chuck