|
Title: Ranger VFO this can't come out good Post by: Burt on April 28, 2014, 05:05:02 PM I have a problem with my Ranger taking 1/2 second to reach normal power. It is OK on a crystal, how do you get at the VFO tubes without taking off the front panel. I don't want to make things worse by asking for problems. The power problem means little on AM, more so on CW.
Title: Re: Ranger VFO this can't come out good Post by: KB2WIG on April 28, 2014, 05:20:00 PM .Well, I just wanted to post the pic, but I guess this will do.
Title: Re: Ranger VFO this can't come out good Post by: WQ9E on April 28, 2014, 05:30:50 PM Top cover of the VFO comes off but some versions have a couple of screws on the front of the VFO. If so you can remove them slowly using a pair of needle nose pliers or quickly using a short bit (if screw) with a ratcheting wrench or just the wrench for the hex head screws. I have some really thin ones but these will probably work OK: http://www.harborfreight.com/4-piece-sae-offset-ratcheting-wrench-set-68834.html AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
But before you go into the VFO do you have the later model (or modified) that adds the 12AU7 keyer circuit? If so check the keyer tube and make sure that the pot is adjusted before digging into the VFO. |