Telefunken Operette 8 tube radio restoration - Part 5. IF alignment, visual method.

forgive my dumb question....when you perform such a procedure,should the radio be on...i know it sound dump but i'm
just a hobbyist ...thanks

Smart use of gear! The poor man's spectrum analyzer works great and costs nothing if you have a basic scope and sweeping signal generator. Hope you will show us a full alignment of a more complex multiple if stage radio in the future using this method. Great work!

thanks a lot.

Hi, are you displaying the external trigger signal in channel 1 or the external is not displayed and it is only used as a trigger? Thank you.

It's always a pain when someone tried to fix the radio by tightening all the little screws.

Very well presented and a great explanation of how to accomplish perfect alignment, many thanks.

Cholera szkoda że rozumiem co dziesiąte słowo , oczekuje od Polskich mistrzów na takie wykłady bez skutku . Wspaniały wykład oglądam z przyjemnością pozdrawiam .

Can I use a hameg hm-512 to to this job ? I also have a signal generator.

Very clever. Great use of test equipment. Well done.

Thank you! This helped me align my Tandberg Sølvsuper 4F from 1946, first use of my new oscilloscope and function generator. Love your channel, learning alot from you.

Excellent description of IF alignment using different techniques.

I do hate those German radios!

If channel 1 of your signal generator is going to a point on the radio, where is the cable from channel 2 on the generator going?

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Mr. Caldeira; how do you connect the ground clip at the probe of your scope to the radio. The scope is earth grounded at the power plug whereas these radios are chassis grounded (floating ground). Do you use a DC blocking capacitor in series with the ground clip to protect the probe and scope in case there is a dead sort in the chassis. I guess a similar situation exists for the signal generator.

Wow. I had been on the fence about ordering an oscilloscope but after watching this, I promptly ordered one. So, yeah, I can tell my wife it's your fault. LOL. Yet another excellent sir. Thank you!

So could you select an IF frequency, peak it, and then align to that? 🤔

Muito obrigado amigo, ajudou muito! Abraço do Brasil.