开云体育

Joe, complete plans for a similar model loop antenna covering approximately 2.6 to 12.3 MHz is pictured below and described at

Jim, Thanks for the tip, I am going to try that first chance I get. Emil

EmilIf the switch still sounds good and you hear a crisp snap when the switch closes then the problem might be corrosion around the rivets that connect the solder tab plates to the internal switch

Hi Dexter, Can you send a close-up photo(s) of your loop antenna?? Is it tunable? 73.Joe? AB1YO

I guess this was factory wired...it is gray and light gray. Thanks Again. Larry

Hello Richard! I've just done an S85.. very similar rig. Just search the group...for more info. Here are some of choices I made. Be aware of *C56*. It is an hazard to your life! It's also called the

I see you fixed the metering switch connections.? One more thing. The kit versions of the HT40/SX140 front panel is dark gray with a light greenish/blue(?) color.? The factory wired radio panel is

The power/ tone control switch on my S-40B has failed. The Hallicrafters part number for power/tone switch is 60A225. That is the same part number for the power/tone switch in the S-40, S-40A, S-40B,

Unbelievable!!! Good work. It could be just a bad output/drive meter switch… with the VFO, I only get one bar on the drive meter. Joe (AJ8MH-Radio) Sent by Wireless!

Been there; done that about 10 years ago.? I got the recap kit from Hayseed Hamfest.? Link: https://hayseedhamfest.com/collections/hallicrafters-s-series/products/s-40b-re-cap-kit.? Also replaced

i have restored an S40 S40A and a S40B. all are EZ restores. first thing to do is replace all the Caps. then check for out of range resistors last thing is check the tubes. good luck the S40B is a

Joe, Thanks for the info from the mods. Had a break through early this morning. I kept staring at the function switch and something didn't look right, so I enlarged the photo of the function switch

Hello all, this being my first post here.? I recently acquired a Hallicrafters S40-B receiver from a dear friend who went SK.? I had promised to restore it for him, so even though he is gone, I'll

I found this info on the web.? It's from the document "HT-40 Preferred Upgrades.pdf".? You can search for it.? I think it's for the plain HT40 and not the Mark 1.? (I've still been trying to

TA1 Terminals 1&2 have nothing connected to them and 3&4 are shorted together. I'll try and find a youtube video demonstrating the HT40 and see if the neon bulb lights on CW. Next week if no one else

Ahh Jim , yes I guess it means that too many. I use pre-octal [it doesn’t sound so demonstrative], but I am trying to confirm that I was really sending what the AI experts know. Do you agree with

Richard, loctal / loktal ..s were spoken about in this 1938-12 article: https://www.worldradiohistory.com/Archive-Radio-Today/30s/Radio-Today-1938-12.pdf pdf 20 ----- but March 1939 revealed some data

Are the SR-160/SR-500/SR-150 control knobs the same size as the HT-44/SX-117 knobs? Thanks. 73, Scott WA9WFA

I wouldn't worry abut the secondary voltage.? However, I have bucking transformers on my outlets to lower the commercial AC down from 120v. Question...? You wouldn't happen to have something

I tend to agree with your feeling that the voltages are high because no current is being drawn. Here are the measurements you requested. These were done with the original 6CX8 and 6DE7. I also