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Determining the correct voltages on output tube V9 6K6 doesn’t tell you everything about why there possibly is no audio but it is a place to start trouble shooting. However I am not sure if that

Yes it is a selection on the front of the radio for phono input. I am checking voltages first but just had that idea this week looking at the schematic. And it does feed directly in. I can also take

To add to this, just to make sure, the phono input is just a low level audio input to the audio amplifier. It does not need to be modulated. Its a suitable place to inject a low level audio tone. I

First find out if you even have proper voltages on the pins of the 6K6! If the OT primary is open… nearly zero volts on the plate, pin 3. If no screen voltage on pin 4… no audio. If the 6K6 is not

Question for the group.... Will be working on the SX100 again this weekend. I am not getting any sound from the speaker. As stated before, I tap across the 6k6 pin and get some static on the speaker.

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