Great timing with this video. I'm in the process of resurrecting an old TEL-OHMIKE capacitor & resistor tester. It's some 60 or more years old and all the pots and switches are dirty and in need of cleaning. I just hope the old pots can physically hold up to the cleaning. Replacement switches are still relatively easy to find but it would be nice to keep the old ones in place if possible. Going to try this out on them. Thanks for the tips. 73 DE K7RMJ Frank
At 2:10, It is worth noting that a 10K ohms pot will only measure approximately 5K ohms from the physical midpoint of the element to either side of the potentiometer if it is a *linear" pot that has the same resistance ratio alongbits entire length from one end to the other. An "audio" or "logarithmic" pot will have a nin-linear progression or taper to the resistance, and it might only read something like 1K from one side of the pot to the wiper at the center position and 9K from the other side of the pot to that same center position. Hopefully this information will prevent someone from assuming, Based on a resistance check done with an ometer, that the potentiometer in their guitar, guitar amp or stereo equipment is "defective". However, a common problem found with many guitar amplifiers including sthere's including some famous brand names is that sometimes the less expensive linear potentiometers were used in parts of the circuit where an audio or logarithmic taper pot would have been be a smarter choice; and this may explain why sometimes almost all of the volume is achieved within the first 10 to 20% of the rotation of the control.
I have an old Kenwood TS140s with slide controls for power out put that need cleaning this video answered some questions for me thanks David Byrd KN4BHS
Thanks I have a Lafayette Comstsat 25A CB (1967 year made) the first CB I bought that the tuner needs cleaning now to get started. It works bt a few channels are not working.
the only problem I've had cleaning contacts, is finding a great contact cleaner, after the cfc ban. the propellant being the cleaner, because it put contrasting temps together. fracturing the contaminants loose and blowing them out of the enclosure. if the enclosure would allow. kinda like busting up kidney stones. then peeing them out.
As a "REAL" American, I am of the school of thought that if a little spritz of cleaner is good then a flood of spray cleaner is better. You said that the QD Cleaner was pretty cheap so HOSE OUT those controls. My only other thought is about the use of some sort of lubricant that could be used or would that affect the working of the controls? Also, I see on the QD Cleaner Safety Data Sheet that it contains a lot of solvents. I'm not sure which ones are propellants and which are cleaners. But I was wondering if regular store bought alcohol would be a good cleaner or if that, too, might cause more harm than good.
Would it strip my cb radio black paint cleaning it with white vinegar? The guy who sold it to me kept it in a shed and it has dried something on it that’s making it ridiculously hard to clean off. The parts I have cleared off it’s obvious the case is still in immaculate condition under it all and I don’t want to strip the paint, it’s a Connex 3300 HP btw. I’m sure you’re a busy man so any suggestions from anyone would help please and thank you.
Vinegar is a relatively strong acid. I'd be cautious about paint. I sometimes use WD-40 to clean plastics and it hasn't harmed paints for me. That might be an option. But I'm not sure, so test it on something else first I guess.
I need to exorcise the switch? I need an old priest and a young priest. "The power of Christ compels you! The power of Christ compels you! The power of Christ compels you!"
I don't think that would be a good idea. Contact cleaner evaporates completely and doesn't leave any residue. WD40 is a penetrating oil that will flow all over the place, stick around, attract and hold dust, and eventually semi-solidify into a gunk. You might get an initial result, but pay for it in the long run.
Great timing with this video. I'm in the process of resurrecting an old TEL-OHMIKE capacitor & resistor tester. It's some 60 or more years old and all the pots and switches are dirty and in need of cleaning. I just hope the old pots can physically hold up to the cleaning. Replacement switches are still relatively easy to find but it would be nice to keep the old ones in place if possible. Going to try this out on them. Thanks for the tips. 73 DE K7RMJ Frank
At 2:10, It is worth noting that a 10K ohms pot will only measure approximately 5K ohms from the physical midpoint of the element to either side of the potentiometer if it is a *linear" pot that has the same resistance ratio alongbits entire length from one end to the other. An "audio" or "logarithmic" pot will have a nin-linear progression or taper to the resistance, and it might only read something like 1K from one side of the pot to the wiper at the center position and 9K from the other side of the pot to that same center position. Hopefully this information will prevent someone from assuming, Based on a resistance check done with an ometer, that the potentiometer in their guitar, guitar amp or stereo equipment is "defective". However, a common problem found with many guitar amplifiers including sthere's including some famous brand names is that sometimes the less expensive linear potentiometers were used in parts of the circuit where an audio or logarithmic taper pot would have been be a smarter choice; and this may explain why sometimes almost all of the volume is achieved within the first 10 to 20% of the rotation of the control.
If you say so 😂😂😂
I have an old Kenwood TS140s with slide controls for power out put that need cleaning this video answered some questions for me thanks David Byrd KN4BHS
Thanks I have a Lafayette Comstsat 25A CB (1967 year made) the first CB I bought that the tuner needs cleaning now to get started. It works bt a few channels are not working.
great to know for when I start digging into my late father in law's old midland cb radio that doesn't work
the only problem I've had cleaning contacts, is finding a great contact cleaner, after the cfc ban. the propellant being the cleaner, because it put contrasting temps together. fracturing the contaminants loose and blowing them out of the enclosure. if the enclosure would allow. kinda like busting up kidney stones. then peeing them out.
very helpful Keven, thanks!
As a "REAL" American, I am of the school of thought that if a little spritz of cleaner is good then a flood of spray cleaner is better. You said that the QD Cleaner was pretty cheap so HOSE OUT those controls. My only other thought is about the use of some sort of lubricant that could be used or would that affect the working of the controls? Also, I see on the QD Cleaner Safety Data Sheet that it contains a lot of solvents. I'm not sure which ones are propellants and which are cleaners. But I was wondering if regular store bought alcohol would be a good cleaner or if that, too, might cause more harm than good.
Your friend suggested this crazy video,!
Would it strip my cb radio black paint cleaning it with white vinegar? The guy who sold it to me kept it in a shed and it has dried something on it that’s making it ridiculously hard to clean off. The parts I have cleared off it’s obvious the case is still in immaculate condition under it all and I don’t want to strip the paint, it’s a Connex 3300 HP btw. I’m sure you’re a busy man so any suggestions from anyone would help please and thank you.
Vinegar is a relatively strong acid. I'd be cautious about paint.
I sometimes use WD-40 to clean plastics and it hasn't harmed paints for me. That might be an option. But I'm not sure, so test it on something else first I guess.
@@loughkb I tried it, it made it easier but it I had it I say how much more maybe 10% 😂. I wouldn’t recommend it. It was dried on grease btw.
there is a spray call detox something like that would be good to use to clean that what i wpi;d ise
De-Oxit, I mentioned it in the video.
That’s the good shit 😅😅😅
I need to exorcise the switch? I need an old priest and a young priest. "The power of Christ compels you! The power of Christ compels you! The power of Christ compels you!"
WOWSERS!
In a pinch, use WD-40.
I don't think that would be a good idea. Contact cleaner evaporates completely and doesn't leave any residue. WD40 is a penetrating oil that will flow all over the place, stick around, attract and hold dust, and eventually semi-solidify into a gunk. You might get an initial result, but pay for it in the long run.
And dissolve the shaft lube leaking it on the carbon bad advice to use on a assembled pot