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Good and not-so-expensive AM/FM Signal generator ABO AVR-5500-PI

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RiRaRi:
Yes. I understand. In my past i also didnt have any problems with stereo separation but i think it is common problem with receivers from 70s and 80s.
But the main part is that this device from ebay cost 390 dollars and Siglent 120MHz cost around 1000 dollars. So maybe this ebay will serve my purpose. It prob produce sine wave which should be enough for my job. Which is testing, aligning AM and FM receivers with only sound and with scope to check any noise on each channel. Am i right?
Now i saw one YT video of this ebay device and it says that it can not do stereo but only L, R, L=R, L=-R. But isnt L=R all i need?
This Veronica board seems like a good solution to pair with good freq gen but maybe this 390dollars device can do everything i need.

TimFox:
From the description, the ABO device should do everything you need for FM receiver adjustment (except for the stereo multiplex function, which needs an external generator).
These "AM/FM signal generators" not only include AM and FM capability (with switchable pre-emphasis), but should be usable down to the extremely low signal levels needed to test receiver sensitivity.
A general-purpose generator may radiate too much RF field to be used at "-20 dBuV" levels, as shown on the front panel of the ABO unit.
"Standard signal generators" from the old days used a lot of shielding around the electronics to avoid leakage.
What is the specified output range from the Siglent units you are considering, and do they have AM/FM modulation capability?

Pomamf:
Thanks for the tip on the Veronica board. I’ve been wondering how I was going to go about getting a stereo signal into some of the 60s era tube receivers I’ve been working on short of buying yet another boat anchor. Great tip!
Also, it appears they’re still available.

Mike

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