Eico Sine and Square Audio Wave Generator | eBay!. Audio Generator Equipment EICO Electronic Instrument Brooklyn, build , 11 pictures, 2 schematics, 5 tubes, United States of America. Used Eico Vacuum tubes for sale on + second hand hifi sites & shops. Use Hifi Shark to monitor pricing and global availability.

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I thought it was an Eicoand it is labeled as such. The output is high impedance and not meant to drive a speaker. Portland, Maine, United States.

EICO Model and Documentation

Used existing power transformer, 6×5 rectifier, and filter caps more filtering than 5c1. Books Support This Site: Yours is a 2 gang, which means all of the resistors in the tuning circuit are different also.

Sep Tue 06, 4: Dec 28, 5.

The tubes called out on the schematic you posted are octals. A 6SJ7 would make sense and the socket wiring seems to fit as much as I can tell from the pic. Skip to main content. Dec Mon 31, Your name or email address: Back to home page Return to top.


Audio Generator 377

Here are some pics You must log in or sign up to reply here. So it is possible those dico were just thrown in there. The only one that doesn’t make any sense is the 6SQ7 in place of the 6SJ7, since those two tubes are not similar.

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No, create an account now. Now I’m curious to find out if they were octal. Getting to them isn’t simple. When I opened it up, it was obvious this thing has taken a fall of major proportions. Dec 28, 2. Yes, my password is: Nice job, cool that you actually used the variable cap. The soldering and construction is nice work. The wiring on the octal socket appears to be consistent with a 6SJ7 or similar tube.

Converted Eico signal generator into Fender Tweed Champ 5c1. I also have an older version from I think the s using the older octal tubes. I hoped that since the original version was the same tube, that switching the two wouldn’t be catastrophic I readily admit that may not have a been a fair assumption and I may have just got lucky I also brought it up slowly on my current limiter and Variac, while looking at the signal with a scope, and watching the tubes.


It is marked as and looks like a but must 737 a later model using miniature tubes instead of octals. I am new to the hobby and am not real sure what to do now. Switching the two produced an unrecognizable form, so I figured that wasn’t correct, or the instrument is broken. We’ve added some “new” guys to the moderator crew. Dec 28, 1. Eixo you sure this is the right number?

Audio Generator Equipment EICO Electronic Instrument Co.

Search Media New Media. Late model from A copy of the correct manual for your generator may still come to light. I did not have a real requirement for another audio generator 3377 the price was right and I like collecting old test equipment.

What in the heck did I buy?

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