Hi Chaz, Well, I think it is possible. It has been done, there are pleanty of good designs that are available. I sugest that you might read the ALS-500 manual, it says in the first paragraph that it
Yes, I agree, the ALS600 would be better, I'm not advocating for the 500, what I was really trying to get at was there are good and viable options already available. I was thinking the requirements w
Hi Chaz, Yea, you can buy a lot of inverter for $250, but you won't get far with it. I have a 3000 watt inverter in my boat, works great, runs the electric range top, micrawave, and my wifes' hairdry
Hi Chas, Even removing the 160 meter requirement, it would make the ss easier, but still the $1/w unattainable in either ss or tube. Like Tom said, the filter board is really going to add up in price
I was thinking along similar lines, The AM3924, it's portable if you have an 18 wheeler ;) but i't one heck of a PA, two 4cx1500's in it, it can easily put out 3 KW++ if it had a better power supply.
Hi Marv, When I saw your post, I also thought of using class E as well, since you have to restore anyway. More efficiency = smaller heatsinks, smaller powersupply, less expensive parts. But my guess
Keep in mind that with the new Rohs (lead free) and other directives being initiated, many more parts have been discontinued or are only available in a different package. ____________________________
Hello all, I'm looking at an LK-500ZB that doesn't seem quite right anymore. I've had the amp for about a year now and it seems to have been working great. Now, I'm having a problem getting 10 meters
Hi everyone, Thanks for all the replies on the LK500, everyone seemed to converge on the same area to check out. I'm in the process of replacing the parasitic suppressor resistors. While I wait for p
Hi Steve, Thanks for looking over the design. I didn't consider the impedance change of the relay, maybe somehow tune it out? I think what you describe is similar to this example, which is used in th
You have that right, I alreayd killed my one sample, so had to pay for the replacement. I know why it died, so I hopefully won't repeat that. _______________________________________________ Amps mai
Since everyone is sharing so much information about relays. Can anyone offer a suggestion for a relay to use which is not used for TR? I need something at the 1.5Kw level to switch in band pass filte
Hi Don, I imagine that the remote coax switch relay would work just fine, probably two spst per filter bank as long as it can handle legal limit slightly above 50Mhz with acceptable swr. Paul _______
Thanks all for the great information, it has helped greatly. 73s, Paul kg7hf _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/
I have two common 25A 12v smps supplies that I use in series to supply power for my MRF141g amp, it seems to work just fine. _______________________________________________ Amps mailing list Amps@con
Lots of good topics today. Speaking of heater voltage. I am working on my first tube based amplifier. Is there any reason that an adjustable voltage regulator couldn't be used to "dial in" the heater
Thanks Carl, that makes sense now. For some reason I was thinking it was some sort of induced voltage between the heater and cathode. I didn't think my little L200 regulator could handle that too wel
At the risk of being laughed off the reflector, I?m going to ask a naive question. Are there any rules or rule of thumb regarding spacing (with respect to electricity and less so cooling) between par
Thanks guys, I'm trying to fit the 3cx800 into a stripped Dentron 2500 cabinet. I would like to raise the tube up and put the base into a little pressurized cabinet that the blower will push air into
Hi Steve, I would go with the AM-3924 also know as the Harris RF-110A. It will do legal limit RTTY all day and all night for years. Has automatic band switching and tuning capability too. You can pic