Radio Oscillator Substitution and troubleshooting techniques

[@dw8840]

So it appears if the local oscillator in a radio is not working, that you can use a signal generator to substitute an oscillator frequency to allow the radio to work again?

[@AllAmericanFiveRadio]

Thank you. Yes taht is correct!

[@ashpowell9451]

Great, thanks for this. Your final point, what *should* the amplitude be? Im using a digital function generator which defaults to 5vpp.

[@AllAmericanFiveRadio]

It depends on the radio, start low and work up.

[@ashpowell9451]

Low being..? (the lower limit of my particular generator is 4mvpp)

[@AllAmericanFiveRadio]

If 4mv is not low enough put a volume control on the output of your generator.

[@wldblugrass]

Great Video and sound.. that camera is doing a great job.

[@AllAmericanFiveRadio]

Thank you.

[@kennynvake4hve584]

Nice video...where would you hook this to in an transistor radio...???

[@AllAmericanFiveRadio]

Connect to the base of the mix/osc transistor.

[@TonyButchT]

So, you use the audio generator to simulate a working oscillator? Then If the radio plays when using the audio generator ( acting as the oscillator), the radios oscillator is faulty.

[@AllAmericanFiveRadio]

The station that comes the strongest was around 60. The generator is on X10KHz so that is 60X10,000 = 600,000Hz

[@warrenpage627]

what do you have the volume of the radio set at

[@AllAmericanFiveRadio]

A little less than half volume.

[@kennynvake4hve584]

I just cant get this to work...I want to try it on a Silvertone 2015...can you show me where to connect this up...thanks...

[@AllAmericanFiveRadio]

Should be able to connect to the oscillator variable capacitor, that's the smaller one.

[@DKoppJr]

Great video!!!!

[@AllAmericanFiveRadio]

Thanks

[@nykwynes]

I can conrfirm my oscillator is working. However all I hear is the oscillator while tuning through the band. Here's a video of what I'm experiencing: m.kzbin.info/www/bejne/d6vKeJudm8uLjKs. Any insight is appreciated.

[@AllAmericanFiveRadio]

Sounds like bad electrolytic capacitors

[@n1chp]

Rich, Thank you very much. Mike N1CHP

[@AllAmericanFiveRadio]

Thank you.