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Aeroflex IFR3413 IFR3414 IFR3416 Signal generator PSU

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G0HZU:
Hi
Has anyone in the UK got an Aeroflex IFR3414 sig gen they can do a quick test on for me please?
I've just repaired the switching PSU in one of these and it would be nice to compare VA and W readings from UK 230V AC mains when the sig gen is running normally.

The datasheet says <185VA but this is for all models. Mine is a fair bit less than this but it would be nice to know the readings for a known good generator.

The power supply is one of the TDK Lambda Sirius CSF250NMML types as shown below. The image below is from my 3414 sig gen.
The reason I ask is because the PSU is really complex (to me anyway) and I had to change quite a few dead parts to get it working again.

It looks OK with a thermal camera with the cover removed and since the repair, the sig gen has been on soak test for many hours and it's still OK.

Thanks in advance for any replies...


Mkpirulo:
Hi, do you still need the power supply info?

Michael

Mkpirulo:
Hi again, air flow through the power supply is very important. The original foam needs to go around the supply so when the cover is on the air can only go through the supply.

Michael

G0HZU:

--- Quote from: Mkpirulo on June 08, 2024, 08:27:58 am ---Hi, do you still need the power supply info?

Michael

--- End quote ---
Yes, thanks! It would be nice to know this although I now have several of these 341x sig gens here. I try and keep a W and VA power spreadsheet for all my test gear.

I typically see 15W and 21VA in standby and once it has been powered on for maybe 10 minutes, I typically see 123W and 132VA. How does this compare with your sig gen?

dew:
They do get themselves cooked sometimes

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