Re: QMX - sockets for BS170s
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? I use two rows of 6 machine pin sockets on all my QDX and QMX and 4 pairs for the BPF caps.?
See attached HB QMX prototype.?
73
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On 30 Aug 2023, at 11:51, Cliff <ae5zaham@...> wrote:
? The sockets work out great on the QDX. I'm about to try them on a QMX so can't say how that works. Space may be tight.
Aha, I knew I'd seen a photo with pin headers under the BS170's recently - check out the picture of the heatsinking on message /g/QRPLabs/message/108109Might want to ask Cliff, AE5ZA how that is working out ;-)
Graham, M7GRW
After repairs done multiple times replacing FET Q9 in my QDX transceivers the pads are getting “tired.” ?I used some small brass tube stock (~1 mm outer diameter) to make eyelets or grommets to reinforce the pads. A short length of the tubing goes through the pad and is swaged with a center punch on both sides of the PCB. They are not sockets but do strengthen the pads so the pads don’t lift off the board so easily after several soldering cycles.?
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