Little side project: messing with the TBA120 IF amplifier and FM demodulator, introduced in the 60s
Blue is the modulation signal, yellow the demodulated output.
This thing does 60dB amplification and the perfboard is not being kind to it
Blue is the modulation signal, yellow the demodulated output.
This thing does 60dB amplification and the perfboard is not being kind to it
Bun's Lab
So I started to consider rolling my own circuit to get more out of it. But is this really worth the effort? And how much effort do I want to put in there? Am I chasing some autistic obsession of the day down a rabbit hole with little to no gain? As much…
What do? Not that I have the time for that until next year
Anonymous Poll
28%
Fix it up as it was intended. Leave it be
12%
Add a simple op amp based sweep generator circuit
24%
Computerize the thing, go full autismo
36%
Show results
Sometimes life just throws you one curve ball after another and all you can do is keep reacting to it as best as you can.
I'll have to move soon.
If you know my place you know how much of a challenge this will be. Both in terms of finding some place suitable and of actually managing it. In the foreseeable future I have to focus on inventorizing, assessing and especially reducing my seemingly endless hoard of crud. So sadly, as much as I dislike those, there will be a ton of these 'look at this thing' posts coming, without much meat to it. At most small scale repairs to put things on ebay. I hope you understand.
I'll have to move soon.
If you know my place you know how much of a challenge this will be. Both in terms of finding some place suitable and of actually managing it. In the foreseeable future I have to focus on inventorizing, assessing and especially reducing my seemingly endless hoard of crud. So sadly, as much as I dislike those, there will be a ton of these 'look at this thing' posts coming, without much meat to it. At most small scale repairs to put things on ebay. I hope you understand.
❤7🙏5