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Ooh, mine, too!Jim Ford?Sent from my Verizon, Samsung Galaxy smartphone

That's exactly the model I would like to find. The 577 is smaller but lacks the ability to do A-B comparison testing. The 576 can do vacuum tubes too, with the right test fixture if I'm not mistaken.

That might be worth a trip down. They have a nice looking Fender twin reverb...guitar amplifiers are another weakness of mine. :o) Sean

Not familiar with them. Will have to go read up... Sean

Thanks for the information!

My second 7503, which I thought was completely dead, is actually showing signs of life.? It has a P11 CRT, which is fairly dim at max intensity, and activity can only be seen with the beam finder

Ultrasonic cleaning is a very good way to get the crud out of sintered bearings. Now that analog turtables and tape recorders are being sought and used again, some AudioPhool boutiques gush about

I wonder if ultrasonic cleaning would help before relubricating, assuming the bearing can be removed..... [email protected]> wrote:

Still have a link? (I know the fundamentals, but a ready-to-use recipe would be great.) Grü?e, Carsten

One can indeed relubricate a sintered 'lifetime' bearing. I have been successful doing it. The preferred method, time intensive, is to remove the bearing and soak it in oil for a day or two.? It will

When looking for an answer on an item or problem I usually try to go to the source - the manufacturer. And if I can't find it on the web, I simply call them and talk to an engineer. After all, they

I am not so sure about what additives there are in engine oil. One can get good quality SAE 20 machine oil at many hardware stores. 3-in-one puts it up in a blue can (red can is something else). Also

Last CT problem I fixed was due to a bad trigger hybrid in the scope. The trigger hybrid has to be extra especially good for the CT option to work. It is the beginning and the end of all counter timer

Why? Silicone oil isn't miscible with the original oil, and you are not going to make the motor become maintenance free, no matter what you do with oils. Just give it some motor oil, thin like SAE5 or

In reply to Dennis's comment about the 1/2 scale reading. I checked the output from the input stage going into U1350 on Channel 1 and it is the same on both channels so I don't think it is in the

Yes, I know that Someday very well! ;)Jim FordSent from my Verizon, Samsung Galaxy smartphone

Folks, I am sorry that I seemed to hijack this posting but thanks for the information. I can see where a passive 50 ohm probe might have been useful in my current HP 8662A resurrection job. One place

It is a good oil, comparable to the original. It will become rancid in time just as the original did, especially if there is moisture. It is also used in hydraulic elevators as the working oil and as

Years ago I got a can of Slick 50 One Lube. It was actually a pump dispensor, not an aresol, and I've use that for similar applications. It was a nice product, still have half the can. I see that