sparrow

Hovlands are good, but are hard to predict. Sometimes they sound superb, and at other occasions did not sound good. Kimber is not very suitable. Auric Caps are pretty good. Love the Jensens, and my current favorite is of course Mundorf Silver/Oils. If cost is not a problem, the Mundorf Golds are probably the most natural sounding caps I have heard. Finally, there are the V-Cap teflons! I have not had the financial flexibility to use them, but have heard great things about them. You can also try the Rel Cap Teflons, somewhat cheaper than V-Caps? If it was I, would probably stick with Jensens and Mundorfs.

Very well described by Voodoo Doc in the earlier post. I think you can also use 5R4 as I think it has the same filament voltage. The only issue could be the first cap after the rectifier. Both 5Y3 and 5R4 would work better if the first cap is small; 10 mfd even smaller. However, if the 5Y3 is not arcing then I guess the cap is small enough and not a problem in your amp. The 5AR4 does not have the first cap issues, and also has a slow start. Personally, I like the 5Y3 as the voltage drop gives some motion to the music. Although the 5AR4 would provide more head room. With all that said, I don't think it makes sense to invest in NOS 5AR4s; $80? I would just use current production.

You are right, it will not improve the sound. I was just trying to get a fresh look. However, there are ways to improve sound, although it could be too involved to do it right. The first trick would be to balance the cone; almost impossible to do without replacing the cone. There are very few speaker places who could do this, but clearly it would be a step above stock woofers. Secondly, light dampening of the cone would lower the resonance of the cone. Again all of this is easier said than done as it requires a lot of skill and experience to do it right!!!

Terry could fix it, and you may also try Audio Classics; Richard Modaferri has some mods that takes the tuner to a higher level. The mods that benefit this tuner a great deal would be replacing the photo cells and a few little changes in the RF section. Of course, Terry would know what to do too!!!

Good discussion in the earlier post. However, if the hum is louder when touching the tone arm, it could be a ground loop. Do you have more than one grounded equipment plugged into the electrical socket? Try lifting the ground except for one piece of equipment. Everything would be grounded anyway via the patch wires. The hum may go away. Not sure if this will work, but you could try?

Yes, it is one of the best tuners ever made. Of course there are a handful of others that are in the same league too. Congratulations on your score. Normally these tuners don't show up in garage sales!!! If the tuner is in proper alignment it would be very enjoyable to listen.

Lot of good suggestions here, but I have successfully used Scotchguard on the surrounds to restore them. Some could be also sprayed on the cone. Very thin even coat, otherwise you would have drips. A good way to do this would be to lay the speakers flat and spray the cone, if there is any excess it would flow to the center of the cone. Now using some facial tissue soak up any excess.

It is a filter cap problem. Replace the caps and amp will be like new again!