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Nicely done, seems like you got it figured out. The proto type seemed like contact could have made a short b/w one of your ceramic disc capacitors and one of the electrolytic capacitors. Or it coulda just been the camera angle. Looks like a project I might try this winter.
Now that I'm back home I'm getting back into the hobby. I'd like to expand my shack setup to include a oscilloscope so that as I tinker on craigslist/yard sale cobras and unidens I could put them on the scope to see how clean they are as well as checking amps as I would like to build more and...
About 10 yrs ago I had bought some plans from powerplate performance, and a set from rf parts. I coulda swore I had them still in my 6part folder in my trunk of radio stuff out in the shop, but 3 military moves, and 4 deployments I have no idea where they're at now or my schematics/plans of...
I've got a 2pill 2879 amp with no ssb switch/relay. I'd like to put one in it so that I could use it on ssb as I find myself going there more and more. I've done one before about 10yrs ago and I remember drawing up a schematic for it, but can't find it at all. Probably got mixed up in a pile...
I am getting back into the hobby and wanted a dedicated base radio. I found a rci2990 for $250, is this a fair price and also any things I should be aware of with this radio.
I have no clue what it was used for prior to me getting it, it was probably a 11 meter special. Which is fine as I'd like it to be able to cover 6 meters to 20 meters. I occasionally will crank up my power when necessary to make contacts over the yahoos clogging up the airwaves with there non...
Ok here are some pictures of the amp that I'm going to attempt to rebuild using 572b's instead of the 811a's
front of amp
looking down onto the tubes and coils
looking at the bottom of the RF deck, there is some rust and corrosions as well as a spot where it looks like the smoke was...
If its the same guy then he's gone into the 11Meters now. So therefore channels... Figured something was up as we got up there our group who was on cb's could hear bleed over. As I did a quick scan of Channels to find something clear enough so we could stay in touch on the drive.
Ha ha ha..... I know exactly where that guy in Belgrade Maine is. I was up there pike fishing the Belgrade lakes and drove by his place. Kinda oblivious he's got some antennas every where, not to mention the bleed over through some 10channels up and down
If that's what they go for then whis every thing else going for 35y bucks less with a $150buy it now. There is a guy on craigslist that is trying to sell a galaxy 959 for $175 claiming it's a $300 radio new.
After being deployed off and on over the last 6yrs I've been away from the hobby for a while. Now that I'm back home for at least the next 4yrs I've got to get my shack up and running again. As well as replace some gear that I sold as I didn't want it to be sitting around and possibly taking a...
6 YRS AGO i bought a basket case homebrew 4 tube 811a amplifier. Mostly bc I thought it had a cool nostalgia look to it and to rebuild it and mount it in my rack for when I needed those extra watts to make contacts. Well it's been through 2 moves now, severely damaged by one of those moves and...
A buddy of mine is having a problem when keying his big box it sets off his computer into a fritz engine warning lights and codes. IS there some sort of sheilding that can be done to the computer to protect it from stray rf. Its a dogde dakota?
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