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2N2925 Datasheet, Equivalent, Cross Reference Search
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May Thu 26, 6: PDF 2N data http: Transistor substitutes update Posted: After a ,long while I decided to tackle the noise issue. Watch out for the fact that those have different pinouts!
2N Datasheet(PDF) – New Jersey Semi-Conductor Products, Inc.
I used to work on organs quite a bit, years ago. Mouser don’t know when they will get the MPS back in stock, but a NTE is a suitable sub and since this is just used to regulate the rod bias I feel comfortable in using that one.
Baldwin liked to use those 2Ns, mostly “green” but occasionally “orange” as well. If I wanted to do away with the reverb board completely how could I daatasheet the 28Vdc? What I wonder is this. Which section do you need to see? Dec Mon 31, 3: Should be 2NA not 2NA The background noise is almost gone after replacing the 2N transistors on the reverb board.
Can you scan that section to share? This is a Conn model organ. I will need dxtasheet do a test to see if the gain is unity or very close to unity as the reverb board sends the signal through one transistor and takes t he signal from the emitter and applies it to the emitter of the last transistor on the board to allow the clean signal to pass through.
It is the 2NA and I happened to find some in my stash.
Jan Tue 05, 2: Given these transistors just amplify the audio signal I am thinking any suitable sub will work ok. May Mon 09, 4: I’ll post the picture of the schematic in the main restoration topic viewtopic.
Also if I still have some noise I will have to replace the 2N transistors in the solo and accomp mixing preamps and the complex voice preamp. What brand datasgeet organ is this? Users browsing this forum: Just looked and I can bypass the reverb board far as the audio signal is concerned. Still have a 2n29925 noise that changes with the expression pedal setting which is after the post amp board so I will replace the three transistors on it for good measure.
I found a suitable sub for the 2N Page 3 of 3. Makes it harder to find out why the 16′ bass isn’t working as I was hoping it was 2n2952 bad transistor. Transistor substitutes 2N sub found. How much difference would that make if I just replaced all the 2N with the 2N? Transistor substitutes 2N sub found Posted: I can check it as the output of the reverb amp that drives the reverb tank has a measurement point where a DB datashwet is listed.
The only issue I saw when testing the board at work was that there was a 1 volt increase in signal voltage out of the second 2N stage right after the input stage when I used the 2NA transistor.
In most cases it didn’t seem to make a whole lot of difference. Books Support This Site: Could the 1 volt increase just be what the normal signal level was when the organ was new? Made a mistake for the transistor number. So it looks like I may only need one transistor on the post amp board which is the 2N as the other two on that board form a turn on delay that mutes the audio while the rest of the organ comes up.
Looks like perhaps I could use a 2N Jan Tue 05, 4: Oddly enough it doesn’t seem to affect anything and honestly I think the reverb is better now, but that datawheet is never used.