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Well living in Georgia at the time a lot of the amp's where really low end class D amps that Amateurs int he area used due mostly to cost. So it was really a 11m amp being used on 10m as is or with slight mods on 6 m unless it was one of the rare models that was multi-band. They things seldom...
Well since you have two supplies I would use them seperatly on different circuits if you can. The unknown power supply should have a data plate on it telling voltage input and amp's used as well as output. The size does not mean much. I have a 35 AMP switching power supply that because I got it...
I have found on refrigerator motor's for the fan a few drops of plain Jane ATF works like a charm. I use synthetic ATF in all my vehicles with automatics. That might make a difference. I had one stop on me once at 3 in the morning so no place was open and all I had was ATF on hand. 5 years...
CaptinKilowatt, I am so very glad I joined this site you are a wealth of information that is not usually nicely stated in books!Other's on this site have all been helpful too but I really appreciate your patients and your advice and the little tid-bits of info you drop here and their!
I had...
I am 6 foot 2 inchs and played college football for a short time before the knee's just gave up.....Bad cartilage and lots of tendon and ligament trauma. So being a big guy I like space!!!LOL That is one of the things I hate about front wheel drive car's! No space to work!I gave up electronics 2...
Ok so I have never done an RF amp from scratch only repaired them and modified them. I know from past experince that 10m band often by the time all the math was done I needed something like 4-8pf but seldom could I find an air variable in that low of a range that would also fit the case. So you...
RAYTHEON 1 KW AM BROADCAST TRANSMITTER RA1000 | eBay
Look at how much space their is in this commercial broad cast transmitter set up to work! If I could afford to ship that girl my way or drive out their and get her.....She would me all mine!!! LOL
Try not to drool on your key baords...
Get your Multi-Meter out and set it up on the input to the fan. Select the peak hold function. Turn the amp on then turn it off. Before reaching in discharge any caps in the area pull the VOM leads out and read the peak hold votlage. It will be close to some standard voltage lile 12,24,48,110...
I have never seen them used before.Seeing how they are in an aluminum heat sink type of casing I assumed they where meant to be used on the chassis but my Dad told me not to assume things if their was any way to get the correct answer.
They where in plastic bags with parts I bought NOS from...
That is why even when I was 18 and running a 2950 when I made modifications I was never chasing watt's! When I replaced parts with higher gain parts, or parts that could handle more power, more current etc......I never exceeded the radio's output ratings. My goal was to make the radio more...
Do these only provide a benefit if mounted to chassis or heat sink? I have never used them before and was going to use them since I have them already in my parts pin. The circuit is being built on perf board or bread board.....So I was wondering if they would provide any real benefit if they do...
I like it! I think it will look fantastic with a Scooby Doo Sticker on it. Although a Charlie Brown sticker inside would not hurt either! LOL
I am big on handles.....I am around 6 foot 2 and built like a professional football player so I also get asked to move things. As such I am a huge...
Yes, I am not suggesting we use axial flow fan in a setting with lots of back pressure that would be pointless. I am saying we need to rethink how we cool. Volume over pressure. Black Market Class D sweep tube amps have installed. The only difference being that instead of a small metal blade my...
Third question: Should each cap have it's own resistor or should I bridge a single resistor across the entire series from + on the one cap to the - on the other cap so they are tied together as one cap?
Ok first I fully understand that identical parts in a series will divide and share the load so long as we are talking about stead state operation no inrush currents or anything like that. So that is the given that I am working from right or wrong.
So my question if you have to wire two cap's...
First has anyone ever taken a household box fan and made a shroud and piping to pipe it into an amp? They tend to be rather quite and they move a large volume of air at a lower velocity. Velocity though can be steeped up in the same way you steep up hdralic pressure in a free fall hydraulic...
Need either more current or voltage or both....Check wire size, length of run, amount of voltage and current getting to the units compared to what they should require mathematically,try another fan, try common RFI/EMI filtering and shielding tactics!
Going on ebay with out setting a price limit on the item you plan to bid on is like going to a Frat party with no game plan.
Some of you guys are total marks and ebay has sen you coming!The idea of an auction is not to be the guy that wins the auction at all cost! The idea is to get an item...
Remind me and I will find the email address and web site for a D&A replacement power board. You need at least 800 no load volts but it will easily allow you to do 2000-2500-2700 volts of out put depending on how you set it up. Current output is critical though because you will have the same...
You know you do not run into many HR2510's,Lincolns or Emperor 5010's not in amateur or CB circles and even few ever come up for sale. People hold on to them like they are gold plated! When one does com up they often go for $150-$250 and that does not count the chip switched models either.
I...
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