good morning Jeff yes there is an AVC switch and it is on... I think the problem is, that this is a non linear pot I dug up... measuring the resistance, it moves slowly for just a cunt hair, then it JUMPS quickly... I'm going to change this out first
Happy New Year to ya!! Ronnie On Wed, 31 Dec 2003 07:58:36 -0600, Geoff Edmonson wrote > > the RF gain control was not working at all. I found a pinched wire that was > > grounded. This was the wire going to the cathode resistor of V-1. I fixed > > this, and even put a new pot in there for the RF Gain. It works BUT.. all > > you have to do is just barely turn it and it blanks out the front end. > > Could one of the cathode resistors have changed value, canceling out the > > work of the rf gain control? R-3 to V-1 or R8 to V-2? Or, possibly, C14 on > > V-1 or C18 on V-2? > > Just a silly-assed question, Ronnie - mainly because I don't remember... > but is there an AGC control switch on the front of the SX-28? It > should be ON. Without the AGC circuit being active, you could have > the same effect - any signal would send the front-end to saturation. > > Happy New Year! > 73 = Best Regards, > -Geoff/W5OMR > > -- > 7:56am up 2 days 14:23, 4 users, load average: 0.17, 0.65, 0.84 > > _______________________________________________ > AMRadio mailing list > [email protected] > http://mailman.qth.net/mailman/listinfo/amradio The "AM" voice of Shreveport, Louisiana USA formerly WN5AIA and WB5AIA I got my Extra Class the old fashioned way... I earned it!
