Products > Test Equipment
FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
Johnny B Good:
--- Quote from: beanflying on July 25, 2019, 05:17:39 am ---
--- Quote from: bitseeker on July 25, 2019, 05:15:13 am ---Interesting development. Of course, the proof in the pudding is in the eating. So, it's time for all the V3 owners to put FE to the test.
--- End quote ---
I dropped Fremen67 a PM. Offhand I can't recall others with dead or partially dead units but if others do hit them up.
--- End quote ---
His last posting to this thread was back in June last year
https://www.eevblog.com/forum/testgear/feeltech-fy6600-60mhz-2-ch-vco-function-arbitrary-waveform-signal-generator/msg1597255/#msg1597255
and he hasn't been heard from since. A few have expressed concerns over his sudden disappearance in the middle of answering questions and providing feedback, fearing the worst for his health and well being. If you do hear from him, I'm sure many others here will appreciate any further news you might glean from this recent PM attempt. I believe others tried to PM him but without reply. Hopefully, you might strike lucky this time.
JBG
FeelElec:
--- Quote from: FeelElec on July 25, 2019, 07:27:36 am ---Oh. That's quite unfortunate.
Thanks for the answer, though.
Do you have a changelog of what was updated, changed, or fixed in version 3.3 so I can see what I'm missing?
--- End quote ---
Dear Customers:
This is the answer: 3.3 Added offline upgrade firmware function, other functions are consistent with 3.1.
FeelElec
MikeLud:
I need some help with my FY6800 power supply upgrade. |O I did most of the upgrades shown in this schematic https://github.com/DerKammi/FY6600-15-30-50-60M/blob/master/Hardware/FY6600%20PS%20schematic%20V1.pdf. The only difference is I did not change D9 and instead of changing R6 I replaced the two 10K voltage divider with a 20K Multiturn Trim Pot wire the same as a voltage divider so I can adjust the output voltage. Also instead of using a 68uF 400V for C2 I used a 33uf 400V. Now the FY6800 intermittently turns on by having to turn it on and then off several times using the switch in the back. When it does turn on it works fine, with the power supply voltage at -13.6V, +13.5V, and +5.0V. and the on/off button in the front work fine as long as I do not turn it off with the back switch. Any help will be appreciated.
Thanks,
Mike
CDaniel:
I don't think that power supply is worth upgrating , just replaced with a linear one .
Anyway you should measure your pot resistance and see if it works ok with the old value 10k , in a such SMPS you can't change the voltage by much or could become unstable . Even if it's 12K as the autor say it works , because of various tolerances is not certain that in every case will work
FeelElec:
--- Quote from: MikeLud on August 03, 2019, 04:27:44 am ---I need some help with my FY6800 power supply upgrade. |O I did most of the upgrades shown in this schematic https://github.com/DerKammi/FY6600-15-30-50-60M/blob/master/Hardware/FY6600%20PS%20schematic%20V1.pdf. The only difference is I did not change D9 and instead of changing R6 I replaced the two 10K voltage divider with a 20K Multiturn Trim Pot wire the same as a voltage divider so I can adjust the output voltage. Also instead of using a 68uF 400V for C2 I used a 33uf 400V. Now the FY6800 intermittently turns on by having to turn it on and then off several times using the switch in the back. When it does turn on it works fine, with the power supply voltage at -13.6V, +13.5V, and +5.0V. and the on/off button in the front work fine as long as I do not turn it off with the back switch. Any help will be appreciated.
Thanks,
Mike
--- End quote ---
Dear Customers:
If you want to cut off 220V power supply, you can only turn off the power switch in the back. It is not recommended to change the power parameters. Replacing linear power supply can reduce the noise of small signal.
FeelElec
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