The numbers after the description are QTY, Price, and Extension. My parts list is an import from Excel so it doesn't format well in text. The caps are humble polyester, I probably should have spent a little more coin and for Illinois Capacitor. So, to complete this exercise, I am posting my parts list for those who follow. My restored LK-72B paired with cruddy Sony satellites sounds better than my unrestored MC-60's paired with Altec 605A's! That was an incredible result to me and to my friend who also had the same preference. I'm just as blown away at the sound transformation on offer through a proper restore. Anyways, I ramble of my new found knowledge, knowledge that made understanding the MC-60 much easier. This was resolved by the members as well with the addition of the cathode resistor. And then there is factory bias procedure which requires more than a DVM. For example, how would a newb know that C203 was can positive? And then there is the added complexity of the preamp. Much more complicated than the McIntosh MC-60 restore that I am beginning next week. From what I can gather, the LK-72B is a moderate level restoration job. My sentiments are the same as yours, I couldn't have gotten mine done without the helpful members here. Hi dnpainting: Congrats on completing your LK-72B. Sorry for all the Rambling's, I just had to let you know! I absolutely love this amp and it would still be sitting in line if it weren't for SoCal Sam to get me motivated to get this unit going again as well as all the Great people here at AK. I have a Pioneer 9100 that I just put the Scott into it's place. I "Understand" why go to all the trouble because I think this has to be the best sounding amp that I have ever heard. I understand "Why" music lovers love the tubes. I understand all the fuss when it comes to tubes. Just wanted to let you all know that, "I Understand". I was beside myself while playing some Elton John, which I remember my dad spinning on his Lab 80 with this amp when I was a kid. I looked over at my buddy and he was absolutely blown away. I hooked up the Altec (DIY A7's) and I actually had goose bumps at the clarity of the sound. Today, I invited a friend over for the "Real" Scotts debut. The Family here at AK has to be the greatest on the web. The first thing I wish to do is to sincerely give the Greatest, "Thank You" I possible can to all who have helped with this. ![]() Two years later, the Scott, I am so excited to say, is finally up and running. ![]() Two years ago, I started the rebuild and it went sour. The now hard-to-find 7199 tubes have been replaced with the more common 6GH8A tubes, using high quality ceramic adapters (the audible difference between the two tube types is negligible).I recently, finally got my Scott working properly. The aging (and now dangerous) selenium rectifier has been replaced with a modern (and much more reliable) silicon rectifier. All electrolytic capacitors have been replaced. All ceramic capacitors have been replaced. A thermistor has been added to drop today’s higher line voltage, so that it is more in line with what was the standard at the time of the original design. All the potentiometers have been cleaned with Deoxit. This particular example has undergone a complete overhaul, and should provide many years of trouble-free service to its next owner.īackground noise is minimal this is a very quiet amplifier (for a tube amp).ĭetails of the service including the following:. The LK-72 is the kit version of the 299C model. This is a nice example of a vintage Scott LK-72 Tube amplifier.
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