Products > Test Equipment

JunTek PSG9080 Programmable Signal Generator (80 MHz - 300 MSa/s - 14-bit)

<< < (30/31) > >>

radiolistener:

--- Quote from: Edison on February 25, 2024, 05:55:40 pm ---So I did a little research, an audio quality Ultra Low Noise linear power supply will easily swing over $100 (think with professional grade mechanical modifications). It is a question of whether this investment is worth it and whether an ordinary linear source with slightly better filtering will suffice.

--- End quote ---

I think there is no sense to use 100 USD power supply here. You can use cheap but good quality power supply.

Note that there is DC/DC step-up converter to get bipolar power for output amplifiers. If you want to get the best quality signal, there is a sense to disable onboard DC/DC and replace it with external bipolar linear PSU. I believe such mod can give you the best signal that can be achieved on such kind of type signal generator.Also it should fix clipping issue which happens sometimes at 25 Vpk output with 50Ω load.

Edison:

--- Quote from: radiolistener on March 21, 2024, 03:47:36 pm ---Note that there is DC/DC step-up converter to get bipolar power for output amplifiers.

--- End quote ---
The switching power supply replacement project was suspended for this reason. The DC/DC converter will likely be retained for the 5V external power option, but the power supply will be reworked to be linear when powered from the mains.

eTobey:
How does this look to you?

Kean:

--- Quote from: eTobey on April 28, 2024, 09:12:27 pm ---How does this look to you?

--- End quote ---

I added a plastic washer under that screw on mine.

eTobey:

--- Quote from: Kean on April 29, 2024, 02:21:57 am ---
--- Quote from: eTobey on April 28, 2024, 09:12:27 pm ---How does this look to you?

--- End quote ---

I added a plastic washer under that screw on mine.

--- End quote ---
Allthough it does not answer my question, it is still a good suggestion.  ;D

To me it looks like "Guys... we fucked up. How can we fix it? ... we are lucky, there are no traces, and we can just drill a hole."

How are these BNC sockets held in place? Just by those connections?

I was just about to order this product, when i saw this. Now i ordered a Rigol for the same price.

Navigation

[0] Message Index

[#] Next page

[*] Previous page

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod