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available in VK from Element14 (Farnell) for about 15c.? Problem is, if you only order under $45 you get hit with $12 shipping glenn vk3pe

Possibly they aren’t readily available in VK, but if you have Amazon, they sell them for a very small price. One listing shows them at about $15 for 100 of them, and they are supposedly Fairchild

Hi Bob, all I see several people have answered this already. This is my take on it all... What type of precision are you looking for when you say "lab grade"? The ProgRock when it is properly set up

Thank you Hans, I did indeed manage to find a shop selling them!

2N7000 has an opposite pinout to the BS170... so the transistors have to be inserted into the board with the flats "the other way" around. Also the 2N7000 does not have such a high dissipation rating

My antenna broke and high SWR caused my QCX to cook and smell and at least one BS170 is visibly blown. Seems cannot find these locally, is 2N7000 as good? What alternatives can be used that will not

Thanks. ?I did this tonight. ?Sounds much much better!

"A row of blocks appears on the top row" Hi Simon have you read section 6.3 of the manual (international A4) on page 124? That might be your problem. Sometimes I do get these blocks on power up but

Hi Vin.. Should hear you from this QTH? Hi HI. Great little rigs aren't they... Trust you're keeping well Phil G4JVF

Ahh, Ok, Thanks! Can you guys recommend some commercial ones? PN's, source. I'm just learning the details of this high accuracy freq control. Just had a good weekend at the hamfest so have some $$

Take a look at this simple design by VU2ESE for the BITX40:? http://bitxhacks.blogspot.nl/2016/11/agc-for-bitx.html?m=1 ( http://bitxhacks.blogspot.nl/2016/11/agc-for-bitx.html?m=1 ) Still waiting

Hi John, The opto coupler,if it uses a LED and photo-diode/transistor, may not work as required. I have designed/used many circuits with cds LDRs. They work, because the resistance change is pretty

Hi Patrick, I run 3 18650 lithium cells in series. The cells are wired to a controller built into the battery stack. This is used purely to shut down the stack if any cell voltage drops below 2.1

Bob, I meant a commercial 10MHz OCXO, the QRP Labs one might be able to be setup as good but I am thinking of probably a around $30 with the advantage of no GPS. (If you think that is an advantage.)

Hi Bob, Like some of the others posting here, I'm disappointed in the ProgRock and QLG1 GPS as a 10 MHz reference. I'm using the recommended Fox TCXO which is just excellent. And for cheap. But the

Hi Phil. Mine works ok on 40m. I am 400mtrs from you. Vin G4ksy

Hi Bob and all, I’m following this thread closely because I have built a 10Mhz Reference from a Progrock and a UBox M-6 module. It works, but is not as accurate as thought it would be. I think it

Hi Guys, im back again. I get continunity between pins 1,5,16 and ground. With the power on (12v) and the contrast pot set for 0.57v on pin 3 i get the following.. Pin 1 0v, 2- 4.87v 3- 0.57v ( with

With every major release you had to re-learn Windows as they keep making major changes on how Windows works, I'm speaking of Win2K, Xp, Windows 7, and Windows 10 not the in-between updates. Linux on

Ok, Thanks guys. So if I understand it, using the OCXO/Si5351A with the Progrock instead of the standard non-OCXO 5351A version would be an improvement? That makes sense. All of the GPS discipline