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@@laszlosokolai2858 Hello teammate! Thank you very much for sharing. I really appreciate it I have a huge favor to ask you, if you haven’t yet, please subscribe. It really helps the channel. There’s so rather simple modification that adds a shrimp pot to adjust the DC offset I usually get it down to near zero by replacing two transistors (differential amplifiers ) with a match set. I think the problem is the old “If it ain’t broken don’t fix it” Thank you very much once again! 🙂🙏💥💥💥

@@mcgjohn22 Thank you teammate thank you thank you so much! I really appreciate it! Hey, I would really appreciate it if you made me a huge favor and subscribe! It really would help!!! 🙂🙏💥💥💥

@@markwroblewski6500 Hello teammate! Thank you, thank you very much! I really appreciate it. Don’t hesitate to reach out if I can help. It’s a Hakko. I love it! I guarantee you that this soldering stations are worth every penny. You will never be able to go back to that spring loaded soccer once you get used to these vacuum pumps! Hey, if you haven’t subscribed yet, I would really appreciate it if you did so because it really helps my channel grow. Be well happy and healthy ! 🙂🙏

@@crooner2007 I agree with you 100% teammate! I put those in temporary until the owner decide which coupling caps he wants to use, and I will then replace them for him. Please watch some of my other videos, restoring my own equipment where I use the military paper and Capacitors that you were referring to. Thank you so much for watching and commenting and I would really appreciate it if you please subscribe . Once again, thank you thank you thank you so much ! 🙂🙏💥💥💥

@@ginocolaianni46 Thank you very much, teammate! You made my day! If you haven’t subscribed please do so I would really appreciate it because it really helps my channel! 🙂🙏💥💥💥

Hello Michael! I love the PV7! Sounds really sweet to me ! And you sure have a sweet system! It must sound incredible! Thank you so much for watching my video and commenting and if you haven’t, please subscribe. I would really appreciate it. 🙂🙏💥💥💥

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@@michaeldelorenzo6827 🙂🙏💥💥💥

@@Tinybench now I'm just waiting for my thorens td 125 to come home from service @ Vinyl Nirvana

Muchísimas gracias Hector! Me alegra mucho que te haya gustado. Sí por favor serías tan amable de suscribirte al canal, me ayudaría inmensamente! 🙂🙏💥💥💥

Thank you, thank you thank you so much! I would really appreciate it if you could please subscribe because it would really help. Once again, thank you thank you thank you so much!🙂🙏💥💥💥

Hello teammate! I’m in Miami.

@@Tinybenchthank you for the SWIFT response. I’m a few hours away in Jacksonville. What would you charge for a repair like this? I’ll make the trip for sure.

@@SOUNDCONTROLFLA It’s probably the output transistors. That’s what it is most of the times, but sometimes it can be something like a diode. You can also be just a fuse which you can check yourself very easily. It’s really hard to say without seeing it in person but an average it’s around $300 including parts. If you really like the Amplifier, I would be more inclined to just do a full restoration and that way you know the amplifier will last you if you decades. The amplifiers are rather simply, and it would just be a matter of replacing all the electrolytic capacitors, thermal grease, and any resistors out of value. Thank you very much and by the way, if you haven’t subscribe to my channel, I would really appreciate it if you do so because it would really help . Thank you thank you thank you so much !🙂🙏 And by the way within the next couple of days, I am going to do a full restoration on a Bryston 4B where I will show people exactly how to do it.

@@Tinybench thank you for your response

@@Tinybench what's the rate for the full restoration?

Hello! Check all your diodes in the output stage. Also check your output drivers. Are you sure the old devices were shorted? And by the way, next time don’t go hunting for a specific transistor. Just get a modern equivalent from digikey or mouser. Regarding the switch, there should not be voltage going through the switch unless the separation capacitor across the switch is shorted. Or maybe the switch is stuck in the close position. If that was the case, you can probably take the switch apart, clean it and put it back together. Thank you for watching my video liking subscribing and commenting and let me know if you’re able to get it fixed. By the way, if you haven’t subscribed, I would really appreciate it if you do so because it would really help. 🙂🙏

@@Tinybench Thank you so much. I check for this. I subscribe to your channel. Have a nice day!

Hello! I would start by checking all the resistors and replacing the electrolytic capacitors. Keep me posted! I hope you can fix it! Thank you for liking and if you haven’t subscribed, please do so, and I would really appreciate it because it will help me immensely. 🙂🙏

Hello! Thank you very much for watching liking commenting and subscribing. Please let me know which crappy cups you are referring to . I quite frankly don’t remember. It’s a relatively new unit. Literally brand new in the box.

I agree with you 100% Before I did the restoration, I listened to the unit with the orange drop capacitors, and it sounded like the lo pass filter was engaged! Absolutely terrible with no clarity ! 🙂🙏

They definitely are good amps, teammate! When my friend heard him, he purchased a pair !!!!😂 I had never even seen them before I had them in my tiny bench! I thought that you subscribed thank you thank you thank you so much !!!! I subscribed to your channel as well ! 🙂🙏💥💥💥

Hello hello! Thank you very much for watching liking and commenting and if you haven’t, please subscribe. I would really appreciate it!!! I am honored to have you a professional watch my video!!!! I am flattered !!! thank you thank you thank you so much!!!! 🙂🙏💥💥💥

Hello teammate! Thank you very much for letting me know!!!! I personally don’t trust any old capacitor like that and I don’t have an issue making units sound good with capacitors available in the market today. And that’s without spending a fortune!!! 🙂🙏

@@Tinybench I agree with you 100% I build my own tube amplifiers,with good caps available from Mouser or Digikey,some people that don't understand how electronics work believe the hype too much.

Hello teammate! I didn’t know that. Thank you for letting me know and thank you very much for watching liking and commenting. I really appreciate it and if you haven’t please subscribe it would really help the channel. thank you thank you thank you so much.

Hello teammate! I have not! That was my first Krell. 🙂🙏

Hello teammate! I consider myself a beginner and an apprentice who learns something every day, but I do have a driving passion and I really enjoy the process! Thank you thank you thank you so much you made my day. Also, thank you very much for watching the video liking and commenting and if you haven’t subscribe, please do so because it would really help my channel grow!

Hello teammate! Thank you very much for watching liking and commenting. If you haven’t please subscribe because it helps the channel immensely. Once again, thank you thank you thank you very much! 🙂🙏

Hello teammate! Thank you very much for watching liking and commenting. If you haven’t, please subscribe. It would help immensely. You better remember correctly the Alans sisters were about $10 each. The good thing is that with the thermal paste and the tighten hardware they last forever! Thank you very much once again! 🙂🙏

Hello teammate! Thank you very much for watching liking commenting. I really appreciate it. If you haven’t please subscribe it would really help me. When it comes to Engineering, sometimes this things happen. To credit the Amplifier did sound beautiful and with the thermal paste, it should last a long time because the transistors will be able to dissipate heat properly. Teammate once again, thank you very much. I really appreciate it. 🙂🙏

Hello teammate! Thank you for watching liking and commenting. I really appreciate it and if you haven’t please subscribe because it would really help me. That unit belongs to my friend Steve and he brought me the trim pot to replace. I will ask him if he remembers where he got it. Just so you know, the original trim pots can be rebuilt if a new one cannot be obtained but it is a little bit of a mission. Basically one can purchase tripods of the same value and replace the wipers as many of them are interchangeable. But like I said, it can be tricky as some of these trim pots are linear and some are logarithmic so everything must be matched. There’s actually four wipers on each of the units because the volume is changed at two different stages. And when you do fix it, just stop using that power switch because as I mentioned in the video, the tour applied ends up, ruining the structural integrity. Once again thank you very much! 🙂🙏

Yes, I was. First I use polar auto Capacitors. I put together adding up to 56 uf. I then change to one47 µF bipolar audio capacitor also from Nichicon which measured exactly 50.6 uf. That one made a dramatic difference. Thank you for watching liking and commenting. If you haven’t yet, please please please subscribe. Thank you once again ! 🙂🙏

Hello teammate! That’s right. The unit have really good transformers. Those were indeed Nichicon audio Capacitors. The green one is a bipolar audio capacitor. Thank you very much for watching liking and commenting and if you still haven’t, please subscribe. I would really appreciate it because it really helps. Thank you very much once again!

Hello teammate! Once again, thank you thank you thank you so much for watching liking and commenting. I really appreciate it and if you haven’t, please subscribe. Thank you very much once again!

@@Tinybench Always a pleasure !

Hello team mate! Thank you so much! If you haven’t, please subscribe. I would really appreciate it. Yes, that was also the same value if I remember correctly. I use between 01 uf and .03 uf on larger amplifiers. I use failproof capacitors from WIMA that are guaranteed to never short. Once again, thank you very much.

It made me happy to see that you left a comment. If you haven’t, please subscribe, I would really appreciate as it would help the channel immensely. The HF 81 can power, the clips horns rather easily! Thank you once again teammate.

Hello teammate! Those are wirewound resistors. Is that your question? And are you sure that those are out of specs because I have never seen those get out of specs. Why won’t resistors are usually spot on? Make sure nothing is affecting your measurements. Good luck!

@@Tinybench I have one that tested over 9 0hms I know thats weird but the meter is accurate so I have no explanation.

@@shaknit 9 Ohms??? WTF!!!! Lift one leg off the PCB and then measure it. I really think something else is throwing off the measurements. By lifting one leg of the circuit. It will isolate the resistor, and I bet it will measure spot on. Teammate if you haven’t, please subscribe. I would really appreciate it. Thank you so much.

Thank you very much teammate! It is spectacular indeed! 🙂🙏

Hello team and thank you very much for watching my video liking, subscribing and commenting!!! I noticed that this units rely on the hardware to ground onto the unit. Overtime corrosion can occur, even though it is not visible. Cleaning under the hardware with a wire brush may help reduce noise. I am truly enjoying the Amplifier! This one has a special place in my heart !!! It’s hard to believe that he was literally a basket of metal parts!

​​​@@TinybenchI would enjoy it too. These older eico unit have really good output transformer. You won't find such quality in modern équipement unless you pay multiple thousands. My HF-60 have peerless transformer and there's a good chance those in your unit are peerless too. Incredible. You can determine the foil side of the caps that are not marked with a oscilloscope. Just connect one side of cap to the positive of the oscillloscope, and hold the body of the cap in your hands, Do it with both side, the side with the most deflection is the foil side. I'm an older electronic technician and since 20 years, since consumer electronic isn't repairable anymore, I restore and rebuild vintage audio equipment.

Hello teammate! Thank you very much for watching my video liking and commenting. Sorry I don’t understand what are you referring to. What is it that I am trying too hard to do in your opinion? What doesn’t seem to have any significant issues? Once again, thank you very much teammate!

@@Tinybench You're trying to describe the sound of the amplifier but that's something a working amp does not have. You probably need to do some ABX listening tests to understand this better.

@@marstedt I understand now! That was my personal subjective impression of how the amplifier sounds, and it should be taken with a grain of salt. Amplifier has a very distinctive sound to me and different properties. I was just trying to describe my subjective experience. In my opinion, A/B comparisons are great for comparing two products. in this particular case, I was not comparing the unit to another one in particular, but how it sounds to me in general. Teammate once again thank you thank you thank you so much. I really appreciate it. 🙂🙏

thank you very much for watching liking and commenting teammate! Good things come for those who wait but not for those who wait too long! Lol Grab one on eBay. Let me know if you need help picking one. The Harman Kardon A230 is also awesome and cheaper! And there’s a few other ones also very good!!! 😊 👍

@@Tinybench I usually convert amps like this to guitar use. I have a few PA and Hi Fi amps ready for the conversion. I will be beefing up a Magnavox Phono Console from 1961 shortly. It uses 4 EL84's but I will use those 7189's in it since a 7189 is a beefed up EL84. Cheers.

@@skullheadwater9839 Hello team, mate! I heard all other people converting the them to guitar amplifiers with amazing results and a really good tone! I also use the 7189 tube. My favorite. 🙂🙏

Hello Jamey! Thank you so much! Thank you for the trimpot!!! 😊🙏💥💥💥

Hello teammate! Thank you thank you thank you so much!!! The funny thing is that that wire was exactly where it was supposed to be, and appeared to be making contact !!!! 😂

Hello teammate! Thank you so much for watching liking and commenting. I really appreciate it. It is hard to believe that it is the same unit and it is also hard to believe that can sound so good! 🙂🙏

Yeah, these older 6BQ5 unit did have a really good sound. The last one I've restored for my client was a heathkit A-151. It has ultra linear transformer with a grill tap. It sounded crazy good.

@@SurnaturalM Hello teammate! Thank you very much. I’ll be on the lookout for one of those on eBay.

I took a look at it. The inside is totally different. Quite beefier and a lot more complex.

Hello again, teammate and thank you very much for watching my video liking and commenting! I really appreciate it! Some some systems can have perfect measurements and hyper clarity and yet have no musicality at all. I rather have a smooth engaging sound that will get my feet tapping. Some people are into measurements, but we are more into listening with our human ears !!! 🙂🙏💥💥💥

Hello teammate! I am in Miami Florida. How about you? It’s never a good idea to wait until the unit goes bad due to the potential damaged involved. You could end up having to rebuild a burnt PCB, having to replace and match transistors, rectifiers, etc, and you could even damage a transformer which would be extremely difficult or even impossible to replace. It’s always better to practice preventive maintenance. There’s also quite a dramatic improvement in sound quality when these units are restored using certain capacitors. 🙂🙏

Thank you very much teammate! 🙂🙏

Hello teammate! Thank you for watching my video! I removed the shield temporarily while I was working on the unit. I put them back on after because they shield, electromagnetic noise. The rubber rings are for microphonic. They prevent vibrations from making the glass vibrate. I personally don’t like to use those unless necessary because they interfere with free convection, which is when hot air rises and draws cool air in. Like a hot air balloon, air in contact with the glass races and creates an earth flow that helps the tube dissipate heat. Therefore, I would only use it if I have a problem with microphonic in a tube. Microphonics is when mechanical vibrations of the tube can be heard coming out of the speakers. Please be on the lookout. I am in the process of editing and shortly posting a new basket case HF 81 video.🙂🙏

@@Tinybench thank you very much for the thorough answer! Looking forward to watching that next video :)

Wait a minute teammate I am dumbfounded. Are you sure you got the right model number the MC 1502 is the new 150 W x 2 tube amplifier for Mcintosh which cost $11,000. Regardless of the model number, I don’t understand how someone can throw away a Macintosh Amplifier. I found a fisher, 500 C on a dumpster myself. I’ll dumpster dive any day for an amplifier lol. On a different note, when I see horrible work like that, I think that is not a matter of knowledge, but a matter of having the desire to do a good job. I consider myself a novice in the process of learning something new every day and the reason why I started working on my own equipment was because the professionals in my city, which is Miami are absolutely horrible butchers! Thank you very much for watching my videos, and for sharing your experience. I really appreciate it! 🙂🙏

Hello teammate! Thank you very much for watching my! At least we gave the units some well-deserved TLC!!!

Hello teammate! I want you to know that you made my day with your comment! Thank you thank you thank you so much!!!😊

I thought carbon composition resistors were noisy ?

Thank you, thank you thank you so much! I really appreciate your comment. You made my day teammate.🙂🙏

@@Lyndalewinder they can be noisy but they seem to sound good. I only use them in the signal path. 🙂🙏

Hello teammate! Thank you, thank you, thank you so much. I’d like to handpick my own Capacitors and tuck them under the chassis. Replacing the multi can is much easier but when I choose my own capacitors , I can select the desire parameters. Once again, thank you, thank you thank you so much !!! 🙂🙏💥💥💥

@@Tinybench I'm sure you know best. Great work!