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I had the same problem with some power mosfets sold on eBay. I installed one in a 220 MHz transverter and it immediately blew a fuse. Turned out that the devices I received didn’t even have the

Thanks everyone that give me the info on broken cap had one in my junk box so it is fixed now just getting it together. Gary k4iap

Bill you are right! I have had such experiences when RF is present the meters show low or wrong voltages. In BITX40 also, I shorted the external VFO pins and then checked and later found fault at the

I too had some trouble getting external VFO sigs through to the mixer.?? I suspected a bad Q9, but turned out that the transistor was good. (Check the voltages without the Raduino connected.)??

Here's a link to an article on how to avoid fake RD16HHF1's... VK4ADC's web - Beware fake semiconductors | | | | | | | | | | | VK4ADC's web - Beware fake semiconductors By Super

Nice work Mr.? Purdum , I will use parts from Your documents in my next QRP project. Thank You!

Hi Armin, Thanks. Now i know thats's ok. Continue now with fault finding, cliks and just static noise. 73's hanz

I done that wit mine,well the reg part n on 12v i get 10w out wrote:

I am using a sony SMPS from an old laptop with my BitX40 s. there appears to be no extra noise above the band noise that I can tell using this supply. Note this supply is 19.5v and I use a small step

IF Q9 is bad some RF from Raduino will get through to the next transistor and RX will work. I had a 1K open in the 3rd VFO stage and 3904 blown! Raj, vu2zap

Thanks Jack! I did so, looks good. Seems a wise precaution.

I think Farhan has handle this the correct way. This is a common problem with any Open Source software with which I am familiar. It quickly gets out of hand with all of the modifications. To my

I sent Banggood a complaint about the stock report, which shows both 2 pieces available but also now restocking the item, hence no order possible. We'll see what eventuates. Bill, VK7MX

members trying for RD16 on ebay are mostly landing at fakes. I had a lot of 10 (supposedly re printed stuff using IRF5** series. After a long search i could find only one seller who sold genuine

I cannot find a master file, with all of the recent fixes, for the Bitx40. I am learning how to use the Arduino, and it isn't the best time to be trying to figure out how to incorporate the various

Might come to that Jack. Bill, VK7MX

Bill: I'd yell at them a little and say that you placed the order when the sale was on and that they should honor the sale price. Won't hurt to try. Jack, W8TEE To: [email protected] Sent: Monday,

Jack, ...and here's (one reason) why I love this hobby: one problem statement, so many useful solutions! /r Chris

I have some 0805 SMD caps in 1000pF. If these will work for you send me a PM with address and I'll send a couple your way. hickspj467?? at?? comcast.net PS - it is possible to solder 0805s

Thanks Dale. Ah, the tyrrany of distance and all those associated time zones. Sometimes being a day ahead of you blokes is of no advantage whatsoever. I'll keep checking the webpage, in case this is