My amps were nowhere near 93mA and as mentioned in the instructions your amp may be different... so there doesn't seem to be an ideal value and I think it will vary according to the IRF510's fitted in

#help #magicsmoke #troubleshooting

Thanks. I think we will try R9 then. regards, Tuomas - OH8JGQ

#problem #smd #qdx #help

All is OK now. I took a closer look and then saw the forest thru the trees. I made a contact with a fellow in MA earlier and got at 559 with my indoor dublet. I had to take out the long, black flat he

#help

To substantiate Ron's absolutely excellent advice, if pin 7 of IC8 is at 2.5V or thereabouts, pins 5 and 6 must be about the same, or pin 7 wouldn't be where it is. IC 10 is concerning... Pin 7 (at 0.

#audio #help #alignment

On March 1, 2018 I ordered some QRP kits that I was advised to get, but due to medical problems until now I did nothing. I had viewed Ham Nations on my TV and they talked about an all mode QRP transce

#help #building

Welcome to the group, James! I agree with Mont on his cabling/connector suggestion. It's very common to use that USB->'stereo' plug cable combination for programming and control of ham radio transceiv

#help #cat #mods

Yes ! When I power up the radio there is a constant oscillation even with the volume turned down. I can adjust C1 and its in the proper place at 8 Oclock, but the alignment steps with R27,R24, and R17

#40m #help #qcxmini #alignment

Il gio 25 feb 2021, 23:27 GIUSEPPE via groups.io <iw8rsb@...> ha scritto: hi Brad, hi Tony, it's always nice to know the lineages of your origins. What makes me proud of being Italian

#u3s #troubleshooting #help #lpf

Hi Jelle IC9 was also defective in my 20m qcx-mini kit. Very low audio in RX but otherwise ok. After replacement of IC9 the alignment could be finished and I have now very loud audio and about 5W outp

#help #opamp #qcxmini

Where were you looking? it's available at this link for $3.00 ea. https://www.ebay.com/itm/3B3253-High-Bandwidth-4-1-Mux-DeMu-IC-16pin-TSSOP-QTY-1/330550179839?hash=item4cf65377ff:g:168AAOxyvSVREogY

#20m #troubleshooting #help