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DonNot mine!? I stayed home in Arkansas and didn't make the trip to North Carolina.? My oldest halli is a 5T that I got for $5 at a hamfest many years ago.Regards,Jim Logic: Method used to arrive at

DonTo preserve to me means to protect or maintain an item so that it is useful.? I think that car collectors have no problem using unleaded gas or a blended motor oil (or a synthetic) as opposed to

Jim, Good look’n oldie. Is it upstairs or downstairs now? Looks just like Dachis’s SX-9 late, but the toggle switch on/off positions have changed! Sent: Saturday, April 6, 2024 4:16 PM To: HALLI

More at:?https://photos.app.goo.gl/jdhDxbBaHGzk9jku7?courtesy of Nick England.Regards,Jim Logic: Method used to arrive at the wrong conclusion, with confidence.? Murphy

Jim, yes, well mostly! and I cannot find real fault with what you said, unless I quibble. I was only responding to the idea of “best” ESR, and then drifted of course.. a little The second topic of

What is the nature of this noise, describe please. Is this a conventional unbalanced, high impedance mic line? If so the shield is also the return side of the circuit and MUST be connected at both

What I found in engineering texts on audio is to use three wire connections (for balanced low impedance) where the third wire carries the ground through from source to destination but the shield is

While that's true, I've found other engineering papers on why that's not necessary in a situation where there is a single enclosure or chassis.? In some cases, it's supposedly much better to ground

Quite often shielded wires are grounded on only one end. This is to prevent loop currents in the shield. This is common for wires carrying very low-level signals. Walt Cates, WD0GOF

Still working on trying to cleanup the noise in my SSB mode signal.? I found one bad .001 cap in the audio chain before the balanced modulators with Walt's advice.? But, that didn't fix my noise

I have committed on the purchase of the HT-9. I also bought the 20m tuning unit that was available online. Thanks to those of you that pointed me to this item! I’m not sure how much AM activity

DonToo much is attributed to ESR in boat anchor radio power supplies.? It is a red herring from my point of view.?? If a low ESR capacitor was not specified in the radio's part list than just how

Sent to wrong address by mistake Sri guys wrote:

This is the FOURTH cap I have received for this radio. Not one of them are the same. This is the only new broadcast type cap still made today.? It's smaller. It says 600 vac.? 400pf a section or so.

Hi Jim, I am behind and trying to catch-up, and you triggered my latent thoughts about ESR stuff As regards the previous comments about one or the other, it seems to me the “better” or the

"Just a metal can with regular caps stuck inside", this is exactly what can caps always were. The can may have been filled with wax but were nothing special. Now, there are caps in metal cases that

I started going through the alignments on this radio and the 1650 KHz IF alignments went great but on the 20.15 MHz alignment things got somewhat strange.? I was unable to get a "tone" out of the

Dan Spot on! This is exactly how I did it with the two SX-100s I rejuvenated, BR d

Thats awesome. Thank you, John. I will have to mount the cap and take measurements. I have a 4th cap on the way and my fingers are crossed this time. I will report back! C

On one of my 2000s the Can cap was shorted.? I had no choice but to install two caps under the chassis.? I used some amazon Chinese 47MFD 450 volt caps I had on hand.? I was a bit nervous and just