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Re: Setting the voltage on the Mini-360 regulator
OK I may have figured this out.. On the DDS-VFO board itself there is lettering all along J1 and I tried connecting to the two lettered "2" and "4" however I actually ended up connecting to the right
By ns3l@... · #199 ·
Setting the voltage on the Mini-360 regulator
I have a dilemma, I followed the instructions for setting the regulator, however the connection points called out J1, pins 2 & 4 for the 12V+ did nothing. I had the 12V ground to one of the G's. I
By ns3l@... · #198 ·
When is an Arduino not an Arduino
Some may recall or have TI Launchpads. Similar in operation to Arduino, there is an IDE that allows you to develop Arduino code into them. Here is a screenshot of the free IDE, called Energia - look
By white512@... · #197 ·
Re: Heatsink for the 49'r?
Someone once told me: ? ? ?All electronic devices run on white smoke. Once the smoke gets out, the device dies. Seems to be true... Jack, W8TEE To: SoftwareControlledHamRadio@... Sent:
By jjpurdum · #196 ·
Re: Heatsink for the 49'r?
All: It wouldn't hurt to put one on, especially if you're running over 12V on the board. I've not tested it, but i read somewhere that the PA transistor get very hot above 12V. Jack, W8TEE To:
By jjpurdum · #195 ·
Re: Capacitor for the LC Circuit is a 56pF
You can order the parts for the 49-er modifications - along with pretty much anything else you'd need - from either Debco Electronics ( www.debcoelectronics.com), or from Tayda Electronics (
By Aaron Heverin <aaronhev@...> · #194 ·
Re: Heatsink for the 49'r?
Hi Steve. I can tell you first hand that the D882 MUST have a heatsink on it. I actually blew mine up the other day... not necessarily because it was running hot, but because I made an error in
By Aaron Heverin <aaronhev@...> · #193 ·
Heatsink for the 49'r?
I've seen some images of Forty9'rs with small heat sinks.. What is the consensus on this.. Is there enough heat generated to warrant adding one.. particularly in smaller enclosures, or should good
By ns3l@... · #192 ·
Re: Capacitor for the LC Circuit is a 56pF
Thanks Frank.. Steve..
By ns3l@... · #191 ·
Re: Capacitor for the LC Circuit is a 56pF
Steve: Forty-9er parts are on the way, should be there Friday or Saturday. A couple of 56pf and 22 uH. Also some additional stuff you might need. Frank Moskal
By frank moskal · #190 ·
Re: Capacitor for the LC Circuit is a 56pF
Thanks Frank My address is good on my qrz page.. Thanks to the others.. I still need the 56pf capacitor so if someone has that I'd like to have one.. My local RS didn't have the cap, but I did get the
By ns3l@... · #189 ·
Re: Capacitor for the LC Circuit is a 56pF
Steve: If that is a 22uH inductor then Mouser part no. 70-IM2-22. Give me your address and I'll send you a couple. Frank Moskal kayandfrank@...
By frank moskal · #188 ·
Re: Capacitor for the LC Circuit is a 56pF
My post on April 10 gives the supplier's URL: Electronic Parts Online Store - Tayda Electronics | | | | 0.14 | | | | | | | Electronic Parts Online Store - Tayda Electronics | | | | I find them to be a
By jjpurdum · #187 ·
Re: Capacitor for the LC Circuit is a 56pF
Where can I purchase the 22uf inductor.. I doub't my local radio shack has these..I know I can most likely get the 56pf cap from RSbut right now I have the 49'r kit underway and need this one part..
By ns3l@... · #186 ·
Re: 49-er D882 Output Transistor Smoked
Hi Dennis... and thanks for the reply. I actually discovered this sad fact last night. The weather in my neck of the woods has been too nice the past few days to do any experimenting, but I hooked up
By Aaron Heverin <aaronhev@...> · #185 ·
Re: 49-er D882 Output Transistor Smoked
Aaron, I think you definitely over drove the PA! Typically, an RF probe is a half-wave rectifier.? If you are trying to measure the peak-to-peak voltage, the best way is with an o'scope.? With the
By Dennis Kidder W6DQ · #184 ·
Re: DDS VFO TXOffset Function
Nope...I never got around to that. I'm hoping someone in this group might run with it, as I have other projects I want to get to. Jack, W8TEE To: SoftwareControlledHamRadio@... Sent:
By jjpurdum · #183 ·
DDS VFO TXOffset Function
This question is most likely for Jack W8TEE. I have my DDS VFO and 49er assembled and all appears to be working correctly. I have a question about the tx offset function. I do not observe any
By Robert Vogelpohl · #182 ·
49-er D882 Output Transistor Smoked
Evening all. Some troubling news... but I want to bring it up to the group in the hopes that the same problem can be avoided for others building the radio. I've had my DDS controlled 49-er on the air
By aaronhev@... · #181 ·
Re: L3
Thanks Norbert, My question is: Is the green one the same characteristics as the black core. I searched for a green ferrite color code and it doesn¡¯t track to the specified type. 73 Gary
By Gary White <white512@...> · #180 ·