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12.47 volts AC on that tube. It seems to be working. Just not strong on higher bands. Maybe it's because it's out of case? About s6 on 80 meters.

Just to be sure, measure the ac voltage on the filament of V11. Check CR10 and the cap that feeds it. Check V11B pins 1 and 8 against the voltage chart in the manual. Walt Cates, WD0GOF

Walt, I got the VFO mechanically aligned. I had to modify a bristol key.? There was no possible way to get to that collar.? ?Its fixed now.? I trimmed up C122 and it seems ok now. The calibrator

With modern amateur transceivers that have general coverage receiver sections and a bandscope, finding and listening to foreign broadcast station is like 'shooting fish in a barrel". Just dial in the

I started with “Scott” but then saw Floyd at the bottom and changed it, so oops! There are the SW broadcast bands, but also other intermittent uses, so it might be one way intermittent station, or

Yes- there is. Here's a neat way to find Shortwave? stations? broadcasting in English (or other languages that you choose). It's an app you put on your phone or PC and you enter various parameters

Floyd , I wonder if you are tuning on ham bands? If so you might pick up a good signal from station A with a good path to you, but station B might be on the same frequency with a good path to A but

I was referring to both Ham and SW. I realize the continuous stations were listed, and even before that, the radio dials had country listings on them, but the individaul transmissions are sporadic,

Scott - not sure what you're asking, but I'll assume you're asking about establishing a contact on one of the HF bands.? Many modern transceivers have scanner capability, but I've never heard of

I checked this out today and the leadin and tail delays do function when you're just in keyer mode without the PC involved.? The first code elements are delayed by the amount of the specified lead

Scott, are you referring to the ham bands or the SW bands? I can speak only to the SW bands. Back in the day, you could cruise the popular SW bands like 49m and 31m in the evening, and there was

I have been a SWL listener for along time, and it is so haphazard to find users on the air, are there common frequencies to start conversations? In modern days there are scanners that can catch

More on matching tubes. Burle color coded their tubes for matching purposes. So, IF you get NEW Burle tubes color coded blue you are perfect. Red and green will work but not to maximum efficiency.

Hi Clark, I have a matched pair of NOS Burle 8122 tubes (Green Dot) that are surplus to my needs if you want to pick up a couple of spares. I tested and de-gassed them in my SR-2000 in June of 2021

Walt - guess I responded to your suggestions on my other thread regarding sideband suppression.? Guess the two problems are closely related. Floyd

Walt - thanks for the ideas.? C52, C55, L10 C61 and L12 all checked out good and within tolerance.? The spectrum on 15 looked as bad as on other bands.? Next I checked the 6.250 trap again and

From the repair manual. [cid:ebc77e03-667b-4d28-a4ad-d3727bf7b657] Walt Cates, WD0GOF https://wd0gof.com/Hallicrafters A majority of acceptance is not proof of correctness.

Caution, the 8122's must be matched. Walt Cates, WD0GOF https://wd0gof.com/Hallicrafters A majority of acceptance is not proof of correctness. https://wd0gof.com/bible-study/commentaries/

Clark...kudos for giving it a try....nothing to lose for sure. I once brought a Collins het osc xtal within 1 Khz of its marked frequency after being 30 Khz off and unstable. That one was probably my

Thank you walt. I will tackle this after work today. Radio number 2 really runs great!? ?The RX and TX audio is much better sounding on this rig.? I am using a classic EV664. I ran it on SSB low on