开云体育

Hi Jeff, I have a pair of RCA 6DQ5's available. $16 (plus shipping) for the pair. Would you like them? If you send your zip code, I can figure exact shipping. Thanks. 73, Ken, W8EK Ken Simpson E-mail

Subject line says it all. Thanks & 73, Jeff W8KZW

I have a complete set too (I subscribed at about issue 7 and have been a subscriber ever since) and I refer to them often. This is quite a bargain, even with the cost of shipping these days. John K5MO

Those would be nice! I am mentioning this as an owner of many from the 1990's. For those that don't know: The title "Electric Radio" is not revealing as they all about good communications receivers ,

I'm selling a near complete collection of Electric Radio Magazine from issue #1 to #404 in very good clean condition. It is missing three issues, #301 June 2014, #354 August 2018, and #399

That’s cool……… I want one……….. Tom W3TA Sent: Monday, August 19, 2024 1:41 AM To: [email protected] Subject: Re: [HallicraftersRadios] Resistor Color Code - RMA Old

Yeah, the furnace in the summer thing does seem like a tangent to be sure. But the point was of course illustrating that the same will happen to a switch, relay contacts and/or even two wires twisted

Hello Bob Unfortunately I have the same problem!! Here are some pictures of what this should look like. Best 73 (HB9HPZ) Franz Von: [email protected] <[email protected]> Im

Bob, get one of these: https://www.worldradiohistory.com/ARCHIVE-RCA/RCA-Service/Service-News/RCA-Radio-Service-News-1935-09.pdf pdf 2 ----- color code ^^ Sent: Monday, August 19, 2024 12:39 AM To:

My dad explained it to me, a good 60 years ago, as the 'body-end-dot' system.? Only once have I found a band instead of a dot as the 'decimal multiplier'.? The thing that took me the longest to

Hi Don I took off a few layers of insulation to get that far.? The small winding partly obscured by some clear tape near the top of the "gap" is the YEL 5.0 V winding.? The 6.3V winding covers about

Halden, a good and most interestion shot!! I guess you have pealed back the top layer of insulation, which we see at the top. I guess it was taken more from the left side so the right looks a bit

Rick, good to hear your furnace works in the summer, etc etc, But Re the switch, what is the obvious problem now, and what is causing it? I can imagine many reasons, but perhaps it boils down to

I am about to start restoration of an SX-23. ?It works but not perfectly. ?It was apparently recapped early in the plastic capacitor era but needs some cosmetic and mechanical help. ?I am asking

A note about the color code on resistors in the SX-23 and perhaps other receivers of this vintage. ?The colors stand for the same numbers as in current practice but the bands are read differently.

Rick, here's my source for inexpensive SSRs: 5 pcs G3MB-202P on Amazon for USD $8.49.? The ones that arrived are marked "Omron".? One is enough for my experiments with the zero-crossing and

The mic amp in the 44 is designed to achieve full power out with 0.005vrms at the mic input. To test the dynamic mic place a 100K resistor across the mic voice line and repeat the words 3, 4, 3, 4.

When I first got my HT-44 running, I was using a high impedance Heathkit microphone and had no trouble achieving full output from the HT-44 with a relatively low mic gain setting (around 3).? When I

Halden, Well, pretty much any relay would work well.? Several years ago, I used a relay out of a parted out microwave oven to replace the hot surface igniter (HSI) relay in a gas furnace.? Those

Hi Rick, Thanks for sharing your thoughts and the reference to the article about step starts.? Many years ago, I designed step start into scientific equipment I used to make.? It included a tungsten