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That would be more convenient than the paper set I have :). I think 14 is the volume with most of the ham gear. John [email protected]> wrote:

(2nd post this evening) This image shows the profile of primary current starting with a peak a little more than 4 A and decaying over about 4 seconds to about 1.6A as the filaments warm up.? In this

Another update... I hauled by HT-37 to the dual-trace storage scope and inserted a 0.5 ohm resistor into the neutral side of the power supply.? Here's a little bit about what I found. When the surges

The files are also posted here: http://www.nostalgiaair.org/Resources/ Same stuff but also the Index to locate which volume to find what you are looking

Mis spelled Rider, sorry. -- Richard Knoppow Los Angeles WB6KBL SKCC 19998

Ryder published manuals for nearly anything a repair shop might run into. They redrew schematics to make them uniform. There were a couple of other pubishers of service data but I think Ryder was

I just received a DVD I bought on FleaBay that contains volumes 1-23 of the Riders Manuals.? I scanned through a little of it and found pages of radios I've never even heard of! 73, -- Justin

Joe, Yes it was. The primary on the original had failed open. A Stancor A-4723 was also suggested by Jim Whartenby, but I found that difficult to source in the UK. It was possible to obtain from the

DonI was responding to what you said which is at the very bottom of this email."Anyhow, Halden’s current was about in-phase with the voltage [ I copied and shifted the current which is not perfectly

Hi Jim, You are right about needing to get into the nitty-gritty! I don’t understand why you wrote all this, but it’s good to learn more, thanks. but at the end you said: “If you can find a

Thanks, Jim. ????????? ? Joe Connor

Yes, see message # 30485"Further investigation revealed that the primary of transformer T5 is open."Jim Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy

I want to make sure I understand this. Was the Hammond 124A used to replace the interstage transformer?? ? ? ? ? ? ? ? ? ? ? ? ?Joe Connor

JohnI figured that Richard would chime in about your audio power comment.?? 18 watts sounds to the normal ear as twice as loud as that from a 1.8 watt amplifier.? The SX-17 manual mentions that the

In the end purchasing a new transformer proved to be necessary. The Hammond 124A appears to be working just fine although I doubt that the set is currently putting out anywhere near 18W. After fixing

I am looking for an HA-16 vox adaptor. It doesn't have to be functional, as long as it is complete and not "over-modified"?. Walt Cates, WD0GOF https://wd0gof.com/Hallicrafters A majority of

Richard, thank you for the reference to the "Radiotron Designers Handbook". I found it online and it is indeed an excellent reference, well worth a look. Not seen this one before. I had a look at the

DonThe transformer has many inventors, as you may know, if you have done any research on the subject.? Much of what was used to electrify Niagara Falls came from Europe since they were far ahead of

As an alternative to adding another filter, you could set the 8R-40's tone setting to LOW by adding a jumper wire between the vacant CW terminal on the tone wafer of the switch and the LO terminal.

Thanks for responding Jim You could have a transformer with such bad steel that the magnetizing current dominates the reflected current from the load, but nobody wants one of those. I don’t know