The EICO B, the resistance capacitance bridge and the . The Y cap was taken from an old SMPS – (C7 in the original schematic). Download EICO B CONSTRUCTION MANUAL. service manual & repair info for electronics experts. A quick view of the power supply schematic, shared by the Knight, Lafayette, and Like the Knight and the Lafayette, the Eico B substitutes eye-closure for.

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I was looking for a decent heathkit or the EICO to help me restore it when I stumbled upon this little treasure. But remember, a very high value cap can load and burn the rectifier tube. I added a line fuse and replaced the line cord with a polarized one. You need not order the exact value as per original spec, as it is rare.

EICO B – Repair/Restoration – Lazy Electrons

Also some files are djvu so you need djvu viewer to open them. As expected, I found broken cables, joints, exposed cabling. As you mentioned the leakage tets function is a really valuable function that is not found in many capacitor testers today. And here you go, this is what it looked like on the inside. So I started fixing it. You can login to do that! I wish I had come across this valuable article manula.


The only draw back is that the unit doesn’t have a volt meter so you should check the voltage control using a vom as I first did to see if the marks on the voltage scale manuaal close.

You can write in English language into the forum not only in Hungarian! You could eicoo a fatal electrical shock! The power cord was changed to 3rd pin and grounded earth to chassis.

Most testers you dial up the test voltage, push the leakage button and wait for the eye tube to open which seems like forever. This site uses cookies.

Vintage EICO Resistance Capacitance Comparator Bridge Model 950B

The EICO B, the manjal capacitance bridge and the capacitor leak tester — I do have other tiny things that can measure capacitance, but nothing compares to this one, or the Heathkit or a high voltage DC capacitor leak tester. I checked the transformer as well in this process and saw the heater glow from both the tube and the magic eye.

By continuing to use this website, you agree to their use. It is fun to work with since it 50 years old.

EICO 950B – Repair/Restoration

This unit was working when I received it. This file is downloadable free of charge: I have recapped and redone some wiring and retubed the unit. You could google it to find more details.


Show More Show Less. In addition, some files are archived, so you need Mankal or WinRar to open that files. Most relevant reviews See all 6 reviews.

You are commenting using your Facebook account. This is how pristine it looked when I picked it up.

But was lucky it was just the pot. Skip to main content. I have put in a new power cord, a new y-capacitor and replaced all the electrolytic ones. I contacted the seller and he was a TV repairman from Massachusetts. This item doesn’t belong on this page.

You can see the first light up, after so many years, still on 60V power. More items related to this product. I bought the Eico B to play with.

Vintage EICO Resistance Capacitance Comparator Bridge Model B | eBay

There is no preview for this item! Email required Address never made public. I credit this addiction to Paul of Mr.