I have added pictures of the power supply of my home-brew 8877 amplifier project. Easy construction. I used aluminum angle and aluminum flat plates. I purchased the flat plate cut to size at Metal Su
Thanks Lee... No, that is not a BNC, It's an SHV. http://www.tycoelectronics.com/catalog/cinf/en/c/10009/221 And the coax is RG59. Which also has a 5KV (actually more) rating. Look at the chassis con
Another type of construction is shown here: http://home.centurytel.net/w7ry/Jims%20Amplifier%20Page.htm With this amplifier, I used a "RP" cabinet from Buyers Custom Cabinets: http://home.flash.net/~
Lie if you want on an official us customs document. It's just a feloney. 73 jim w7ry First and foremost send tubes that were made in Uruguay. -- Ron KA4INM - The next election, I know what is going t
All I have posted pictures of my homebrew 3CX800 ampliifer here: http://s900.photobucket.com/albums/ac206/w7ry/3CX800%20Amplifier/ This is updates to the amplifier shown on my web page: http://home.c
Thanks Carl... And yes, I did. The red disks are 100 PF used for loading padders, and the orange ones are for 160 meter tune padders. 73 Jim W7RY _______________________________________________ Amps
Thanks George. This is "phase III" of this amplifier. Phase II is shown on my web site, and "phase I" had a pair of Svetlana 4CX800s. Which did not work very well. 73 Jim W7RY _______________________
Does anyone have an aluminum disk that goes into the center of a NCL-2000 knob? How about an entire knob? Name your price shipped. Thanks. 73 Jim W7RY _______________________________________________
All I have a project that I would like to get some circuit boards built for a TL-922 QSK project. The board would have about 20-25 componets on it. I have a hand drawn schematic. I have downloaded so
W8JI has some great info in his web site about this. http://www.w8ji.com/loading_amplifier.htm 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com http:/
Check out Tapp Plastics. They have a video on their web site that covers polishing plastic. They also sell the polish. http://www.tapplastics.com/shop/product.php?pid=428 73 Jim W7RY ________________
I use Kings, SHV. You can see them in use in the pictures of my 8877 amplifier and power supply at: http://s900.photobucket.com/albums/ac206/w7ry/8877%20Amplifier/ 73 Jim W7RY _______________________
Sb-220 and hl-2200 meters are NOT the same Jim w7ry Hi " What is the meter's DC resistance? " 1170 ohm for the multimeter (meter P/N "830624"). 1195 ohm for the IP meter (P/N "830625"). Both measured
Because they are dangerous. 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
I use a 240 volt to 120 volt transformer for the fan and filament transformer in my 3CX800 amplifier. Got it from Mouser. 3CX800s only draw 1.5 amps of fil current each. 73 Jim W7RY _________________
Sorry for the delay in getting back to all of your offers! I now have a circuit board and schematic for my QSK board for the TL-922. It will actually work in most amplifiers that use a 120 VDC bias o
The reason I had to use a 240 to 120 step down transformer was that my plate transformer had no 120 volt winding. Just a 240 volt primary. 73 Jim W7RY _______________________________________________
The SB-220 band switch is a shorting type. 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
I'm quite sure they are 12 volts. The number sounds familiar. I'll have to look at a couple of Motorola radio manuals to see if I can find them. They may be from a Motorola Maxar, Mitrek or Micor. No