Path: /eico/b/. This is the BAMA archive. These manuals are available for download and free of charge. I am now accepting new manuals for inclusion in this. DESCRIPTION. Your new EICO Model Resistance-Capacitance-. Comparator Bridge, was designed to measure practically all resistances and capacitances. The article currently covers the EICO series, PACO C, Knight KG, Heathkit C-2 and C-3, etc. (More models will be added on an ongoing basis as I.

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Eico: eico model 950b bridge construction

I replaced 3 capacitors 2 didn’t look good and one was wrong value. Jun Mon 17, 3: The power factor tester too is also quite handy. The think I love the most about this capacitor tester is that you don’t have to hold push buttons in to do a leakage test on electrolytic capacitors. As the pointer dial approaches balance point, first the overlapping disappears and eventually the entire target area of the eye tube is completely open dark.

The power cord was changed to 3rd pin and grounded earth to chassis. But was lucky it was just the pot. Since I have a digital capacitance meter, this is really not a big deal; but, I still like my equipment to be right. So it all looks good. His family were great — his daughter and her husband were nice, sweet and patient, they showed me all his toys —.

More models will be added on an ongoing basis as I find the time. Jun Mon 17, 8: One of the best, and most often overlooked features of a bridge-type capacitor tester like this is the power factor measurement for eicco. We do not provide free personalized troubleshooting.

Even if you are familiar with solid state electronics, do not try this unless you really understand the risks involved with working on Vacuum Tubes and High Voltage DC and know the safety procedures to follow. The next step was to do a complete physical inspection, look for broken parts, shorts, missing cables, broken 590b and so on. But it does get quite warm if I run for long.


Somewhere buried in the abyss, I think I still have one of these testers in rough shape that still has the correct pointer on it. The basic circuit of this unit is very simple. The idea is the bridge balances when the series resistance of the reference capacitor match the lossy part of the capacitor under test.

Create proper habits, and you will not find out what your teeth fillings really taste like.

Jun Sat 22, 7: Jun Tue 18, 4: Jun Sun 16, 8: That means for balance, a variable resistor is placed in series with the 2 uFd arm used with the extended scale to measure big capacitors.

Jun Sun 16, From date codes, this unit was made in ’63; but, it seems that this model was made for many years.

EICO 950B – Repair/Restoration

Jun Sun 16, 9: You can use the checker to test its own capacitors by connecting some brand-new plastic film capacitors that elco approximately mid-scale on each range except the “D” range, for which you’ll have to use a new electrolytic to the test terminals.

I’ve found some capacitors with tighter tolerance figures; but, they are all non-stocked items that could take a few months to obtain.

And here you go, this is what it looked like on the inside. As you mentioned the leakage tets function is a really valuable function that is not found in many capacitor testers today. Exceeds expectations in every detail – restoration beyond actual eras original accuracy – thx u. I added a line fuse and replaced the line cord with a polarized one. Jun Sun 16, 7: Jun Tue 18, It can kill you. Keith You do not have the required permissions to view the files attached to this post. Most relevant reviews See all 6 reviews.


EICO B – Repair/Restoration – Lazy Electrons

Heathkit C-3 dark color scheme. You are commenting using your Twitter account. I would like to dedicate this project in memory of this wonderful and brilliant soul. As the tube heats up slowly, it should not cause any trouble even if I have a high eco cap, but I wanted to play it safe and keep the surge current as low as possible to protect the rectifier tube. This instrument always finds a way to give you a healthy shock sooner or later.

But remember, a very high value cap can load and burn the rectifier tube. This article discusses repair and calibration information for a number of vintage capacitor testers that all use the same fundamental test circuit. I bought one several years ago from eicp old radio shop.

Users browsing this forum: Eoco you have some new caps on hand that are slightly lower in value than what is needed, you can select caps to add up to the necessary values.

Antique Radio Forums • View topic – Eico B resistance/capacitance/comparator bridge

Can someone explain how the power factor test on this model works? You could google it to find more details. The manual that I printed for my unit has a copyright date on it. I was looking for a decent heathkit or the EICO to help me restore it when I stumbled upon this little treasure. Agree with the others that you should not mess with the bridge caps unless they are actually bad, as this can lead to calibration nightmares.