开云体育

I was going to try to make something similar, but was going to try these power tool adapters for dust control. What they are is basically a current sense that will trigger a relay as long as a load is

I’m going to build a switch/outlet power box to turn my Harmon-Kardon audio amplifier on/off. I have been using the switched output of my receiver. My question is: Is there a simple circuit to

Richard, Yes it is unclear. As I said .. it seemed not to be the PT .. from long ago tests. It did seem to be around the top of T5 [ 6R7 plate side] but then the noise trail was lost . In my

I am not clear on what fixed the problem. It seemed to me that the noise was from arcing at the terminals of T-5. Right now I am unclear on what exactly was replaced and what is meant by

Richard, thanks for asking that question. You did a good job and saved my fingers. Perhaps noise came from the Pwr transformer, through the 5Y3 and went unfiltered to just the 6V6s [but is

Congratulations on fixing it. Now I am puzzled by what you mean by bpass of T-5. The power transformer is T-7. Are you not feeding B+ to T-5? T-5 is the driver transformer for the audio. If it has

How about that! I’ve been following, but couldn’t offer any suggestion(s) that wasn’t already given. Glad you found the problem – what a hunt! Tom W3TA Sent: Saturday, November

Swapped the power transformer and all is well.? I left the B+ bypass of T5 primary in place to avoid that potential future issue. -- Dan K1DTS

Bob, Thanks for the offer but, I have already downsized my Halli stuff, 75 Yo here.? Most everything I had, is now on the site including pictures of every Halli I ever owned. But, if you really

Bill K2WH and all: Thanks Bill for adding the flyer to the files. I'm glad the flyer was appreciated by so many. Makes the scanning effort pleasantly worthwhile. There is a lot of radio history, and

SR-150 has been sold to a new custodian of this piece of Hallicrafters history. Thanks to all who inquired. 73, RonK9RH?

Looks like I forgot my call sign in my last message: N6GX. Thanks again, Bob. [email protected]> wrote:

Thanks for posting that flyer. I discovered the SW bands in the mid-'60s, and that flyer captures the excitement of SWLing in that era, where the bands were alive with fascinating broadcasts every

Thanks Bob, didn't have that one.? It's been added to the group files and credit given. I'm sure there are still many flyers and publications we don't have. *K2WH Bill's QRZ Biography (

Bob, Thank you very much ! 73s, Bill AI5RP / KJ5BNE/AE - - - - - - - - - - - - - - - - - - - - - - Bill Blodgett Arlington, Texas

Ohh, . and it looks brand new, must have taken some work to "clean it up". thanks from here too.

I was also first licensed in 1963 or 64! Enjoyed reading the brochure!! Bob - N6GX ________________________________ Sent: Monday, November 25, 2024 9:16 AM To: [email protected]

Bob, Thanks for the memories.? ?I remember that flyer or something like it. 1964 was the year I was first licensed. 73, Russ, N3CO

In the CW SS this year, I

Thus, I’m not remembering correctly…………. I know I made a bazillion CW contacts with them. Tom W3TA Sent: Sunday, November 24, 2024 11:32 AM To: