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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 ·
Re: L3
Hi Gary! I had the same experience with mine. The red is red and the green is the one they refer as black. L3 = Green core 11 turns L4 = Red core 16 turns Check the "49er Inductor windings" post from
By wp3dx@... · #179 ·
L3
My 49er kit came with a red and a green ferrite core. Has anyone else had the same experience for L3 (green not black), and does the green core seem to work for L3? 73 Gary W5GW
By white512@... · #178 ·
Running on LiOn Batteries
Hi! Quick update, I hot glued a battery holder to my case and I'm getting around 12.6 volts (fully charged) with three 18650 LiOn batteries. I believe these are rated 3000mah (Samsung ICR18650-30B).
By wp3dx@... · #177 ·