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Here is an interesting Srpague chart from 1960 advertising. Below is just a fragment https://www.worldradiohistory.com/Archive-Electronics/60s/60/Electronics-1960-09-09.pdf pdf 7-- +++++++++++

Keith here is one for pots https://caig.com/fader-f-series/

I did have to order it. Called a musician friend of mine and asked if they had it at the guitar center. I knew he used deoxit on his vintage amps all the time. Said the center only carried regular

Bristol is still in business. I seem to remember I bought my set of45 L wrenches directly from them via the web. I also have a set of Xcelite Bristol wrenches. These are very useful for getting into

You might have to get it off the web. It has a lubricant in it. Its possible the pot has a worn spot on the resistance track, have to replace it but the Faderlube might fix it and is worth a try. --

Bill I have not completed an alignment just yet. Thats next on the list. Will have a good bit of time on Saturday to spend with it. Got all my needed items to do it ready on the bench. Keith

Good idea Don. I have things to jumper it out. Least? let me get an alignment going and see where it stands. I am just tickled to get audio. I really want to get this one playing.

I will do that Richard. Will check at our local guitar shop and see if they have it. I used regular DeOxit on it and it did help somewhat. Think the S meter is not 100% either. May rob another one

Try Deoxit Fader Lube or whatever they call it now. It will often bring back bad pots. -- Richard Knoppow Los Angeles WB6KBL SKCC 19998

Hi Keith, it sounds like it is on the poor side of iffy. No surprise there. Perhaps you can jump the pot with something like 500k ,or 100k,or 50k ohms and do any other listening tests before taking on

Nope. Not deaf. Actually receiving my local talk radio station now. Think it’s the volume pot is iffy. Get Outlook for iOS Sent: Thursday, March 28, 2024 7:46 PM To: [email protected]

Using screwdriver touch the center post on the volume control.? If you hear a click or noise then everything after the control is working.The phono jack is usually just before the volume control.?

I think may stumbled on to the issue. Faulty volume control. Injecting a 1000khz signal at the antenna. Using internal modulation from the IG102. Messing with the volume control, I suddenly got the

For Bill, system manager, Hi Bill, A ham friend, now SK, left me some tubes, cables, antenna switches, etc., is it okay to list them on the forum? Most tubes are exotic or high-power ones I don’t

What instruments do you have? I think you said in another post on this thread that you have an oscillator. I think I would start by putting a tone into the phono jack and setting the selector switch

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.