Home |
Search |
Today's Posts |
#8
![]() |
|||
|
|||
![]()
Did the same thing!! Even used the chasis! Sawed it off, moved the front
cover/ cap, and rotary inductor into the area of the osc/ magic eye tuneing tube area-- makes nice package, and considering these tuned from around 160 meters thru 20 (or thereabouts) in different versions, and loaded a aprox 20 foot piece of wire--- make very versatile tuners . also wonder where all of the bazillions of these dissapeared to! Jim Dave wrote: Dick, A REAL LONG time ago when I needed my first tuner I bought a military surplus ARC-5 transmitter for $5 USD and removed the roller inductor and final plate tuning capacitor. [Actually, I bought 3 ARC-5s: one for 80, one for 40 both converted to XTAL control, and one for the tuner and spare 1625s. Nice NOVICE CW rigs.] Made a real nice L-tuner at 125 watts continuous duty!! Hmmm .... where are those old ARC-5s when someone needs them?? Deacon Dave, W1MCE Dick wrote: In a time long, long ago, there were no commercial antenna tuners that I can recall. The first commercial tuner I remember was the Johnson Viking. Everyone I knew made their own. You just went to the surplus store, and got a coil and capacitor that looked about right, and tried it. No one owned any equipment to measure them anyway. We never used relays. Maybe a switch, or just change the coil. The ARRL handbook and Antenna Handbooks still have diagrams for antenna tuners. Also the Hints and Kinks manuals, among many others. Dick - W6CCD On 4 Aug 2003 12:51:51 -0700, (Art Unwin KB9MZ) wrote: Mark, What sort of range of impedance matching would this provide? How would you switch bands and what voltage/capacitor range would be required? I suspect you would have to have several relays to pick up various points on the oatmeal inductor as well as a rotation method for the capacitor Seems like you have something specific in mind that you would put in a box for safety reasons. Are the specifics shown somewhere for people to copy? Art |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
SGC Tuners with Dipoles ? | Antenna | |||
Great Homebrew Antenna Roundup -- Hundreds To Choose From | Antenna |