Danny, I appreciate your comments. I am leaning towards actually joining AK so I can ask for the help I'm sure I'll need. YouTube videos help, and I actually watched one that the receiver they were working on had the same issue and I'm working with. I have specific questions that will need more pers...

For those who know more about working with solid state stuff than me, which is everybody..... ;) :oops: :cry: I have read where it is important to discharge the filter caps before/when/during the replacement of transistors. So does one discharge the filter caps to chassis ground? Chassis ground serv...

The two DC balance pots that the two other ones come in one of the kits I linked above. What I want to do in the short term is two-fold. One, decide if this project is going to be economically feasible. Then, to gain enough knowledge to be able to troubleshoot this receiver, and just not throw parts...

I have a couple, but I think they are RCA. I don't believe they would be matched.

The open pot is V1, a DC balance pot, on the schematic and parts list. This pot being open would remove the voltage from the base of Q1, which is an audio amplifier transistor on the driver board, which is in the dead channel. Pots V1 and V2 are DC balance pots, set to 0 VDC. V3 and V4 are idle curr...

There are four pototentiometers (pots) on the driver board. These pots, apparently, are known to go open, so they include those in most parts kits. One pot is open on the channel that is dead. Will that open pot kill a channel? What do these pots do, what function do they serve?

Thanks, Bill, that's a good idea. I have a Harbor Freight right up the road, across the street from where I work. Diagnostic "guidance" on this rig is essentially non-existent. It seems the common practice is not to try and figure out what might be causing an issue, just throw parts at it....

The first thing I need to determine is if the PT is still okay. Something took a dump today when I was doing my baseline check. I don't want to gamble buying $200 in parts if the PT is bad. One relay is a "thump" relay, one relay is a soft-start relay. I think the "thump" relay i...

I found a 92 page service manual online that I can download for free. I'm assuming then that I can print whatever pages I need and not have to print the entire 92 page document. I found a relay that energizes the primary of the PT that appears to not be working. My concern now is the condition of th...

The next step is finding and obtaining a schematic. I'm chasing my tail otherwise. The label on the receiver says it draws 490 watts. My KAW says it is drawing 22 watts. It's a good bet I don't have any B+. I disconnected the filter caps with no improvement. I measured 20 volts on the filter caps. T...

I've got another, more immediate problem. The soft-start relay is clicking, turning power on and off, although the dial lights always stay on. I'm suspecting a short in the power supply. The amp meter on my Variac/isolation transformer spikes every time that relay clicks. That can't be good. I have ...

The issue appears to be in the audio section. One channel is totally dead. It will pop when I turn the power on and off, but that's it. The other channel is extremely weak. I can barely hear the FM radio with the volume turned all the way up, a dangerous situation for my hearing and for the speakers...

To you guys who understand solid state electronics, my hat's off to you! I have learned the following, that may make this make more sense. The base of a transistor is like the cathode in a vacuum tube. It controls the current that flows thru the transistor. The collector is like the grid of a tube. ...

Would something like this work? https://www.ebay.com/itm/317485601662?_skw=desoldering+gun&itmmeta=01KEHZG0SNK3J06AC5G50QKMVS&hash=item49eb9dd37e:g:XwgAAeSwUXdpBGRq&itmprp=enc%3AAQAKAAAA0FkggFvd1GGDu0w3yXCmi1dFFD5oQa2bQPoxVYbEpq07bG%2FqVaZXG8LgVyoFj8kkigtMzJ8NMt6zuwJzV5C%2BDPGap5C%2F%2BM...

Thanks, Danny. I appreciate your input. Your comments were well-considered and are well-taken. Thank you. :D This will be the largest project I ever got involved in, mostly due to its being new territory for me. It may take a year or more for me to wade thru this project and not mess something up. M...

There was a lot of chatter in the Buick Club about the "LZ" code 425 cid Buick V-8. I had never heard this story. There was an aluminum, turbocharged 425 set for introduction in 1961, but the bean counters and not enough development killed that project. This may have been the ultimate nail...

Since I've received no input otherwise, I have forged ahead and have found this parts source: https://www.ebay.com/itm/125241353287?_trkparms=itmf%3D1%26aid%3D1110006%26rkt%3D4%26mech%3D1%26algv%3DSimVIDwebV4WithCtxRankerV1UnifiedFeaturesMMV31Recall%26pmt%3D1%26amclksrc%3DITM%26sd%3D362150595175%26s...

I have a friend who has an old Philco radio that he did a tung oil finish on. Looks fantastic. I think there are guys who could use "mayonnaise and a brick" as Art used to say, and come out with a nice finish.

Interesting, had no idea such a place existed. Thanks for sharing.

I have the SX-1050 on the bench, with the covers off. THAT I can do competently. From here on, I'm a total noob. I am going to try to figure out how to clean the controls and go from there. Any ideas would be sincerely appreciated. Criticism will work as well....