I am hoping someone can steer me in the right direction. I purchased a Clipperton L amplifer a while back and it has worked well, however now I'm...
Hello from Dan. kb7uxe. I am talking with a company to make replacement meters for the SB220 and SB221 amplifiers. the old ones get sticky etc...
Cross-posted in the amplifier forum as well. I'm looking for a manual for my Ramsey PA-20 220 MHz amplifier. Can't seem to find that one. I...
[Also cross-posted in the 50 MHz and up forum, in case one of the VHF guys has one] I have a Ramsey PA-20 220 MHz amplifier. Seems okay from...
Hey everyone, I have a Johnson Desk Kilowatt, and I need some help with it. The gentleman who had her before did not take car of her very well....
I recently acquired a very nice D&A Phantom 500 amplifier in an estate sale. I realize that this is a poor amplifier for any RF work these days,...
Hi all I've been trying to get more and more involved in the homebrew side of ham radio recently. I've got a couple smaller RF design projects...
Bridgecom Systems is giving away one complete 2 meter repeater system! Entering the contest is free, simply browse to https://wn.nr/W8GF4V The...
I own a Drake L-75 amplifier where the tube has recently gone dark. When I pull the tube and conduct a continuity test on the filament pins, I get...
Given the following parameters I would like to know what the (1) 1.5: and (2) the 2:1 bandwidths would be. I will make this dipole but want to...
Hello, this is K6BFL. I am looking for a amplifier about 250 or 300 watts that can run on the regular 120v circuit. If anyone knows of a type like...
I am getting ready to erect my fan dipole. I am curious as to what determines the maximum amount of power it can handle. I doubt I will run more...
Greetings Ladies and Gentlemen, I recently got a fantastic deal on an old Henry 2K4. What a monster!!! It needs a new chimney for one of the...
Good day Internet Elmers, I just happened to purchase my first amplifier recently. A Heathkit SB-220 in pretty good shape (I think!). So far it...
I'm certainly not the first to walk this path, but I made some good progress tonight on a 50W portable amplifier. It's very much in the vein of...
Can anybody explain to me the difference between an older grey faced ACOM A2000 and a newer black faced A2000? I have an opportunity to buy the...
Thank you David, KG6IRW for an excellent and informative presentation on the Elecraft KPA1500 amplifier. What an awesome piece of equipment....
I WOULD LIKE TO SELL THESE ON QRZ BUT I WOULD FIRST LIKE SOME HELP DOUBLE CHECKING MY MEMORY ABOUT THEM. HISTORY: I WORKED AT MOT FOR 20 YRS IN...
While putting the finishing touches on an amplifier design for HF, I saw something interesting in the data sheet for the RD06. I have seen...
I wrote software to fit my needs in the shack but they may be of use for others. http://www.mulveyware.com/ Software/License is free; However, I...
