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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For additional information, see the Global Eioc Program terms and conditions – opens in a eiico window or tab. The audio euco that came with the generator looked like it was made to check stereo amplifiers. Most Active Authors Latest Reviews. I will set about trying to trace out a schematic on it.

This was probably a worthwhile mod but unfortunately 2 extra holes were drilled in the front panel. Nice job, cool that you actually used the variable cap. I have two versions of the but not this one and have no data on it. Others above have already pointed out that most of the tubes in the unit are functionally similar, so you will probably find that the generator is indeed as shown if you re-draw the diagram ecio the pin-outs of the tubes that are present.


The model number describes a particular item that meets a particular spec, eg. Converted Eico signal generator into Fender Tweed Champ 5c1.

Page 1 of 1. I thought it was an Eicoand it is labeled as such. I power it up slowly using a Variac on the ac line. Start of add to list layer.

Every amp should have one! Dec 28, 1.

Here are some pics Function or Waveform Generator Model: Sep Tue 06, 3: The Gear Page is run by musicians for musicians. They were stored in the 37.

Similar sponsored items Feedback on our suggestions – Similar sponsored items. Are you sure this is the right number? Note that big variable capacitor in the middle?

Audio Generator 377

The way I have it in the photos is the way that I tried it first, with eick 6BQ5 in the “north” socket, which did produce a recognizable sine wave, wico not very pretty. If there were a requirement to generate an accurate frequency I would connect a frequency counter to it.


It came with 3 spare tubes used and an audio cable. Log in or Sign up. Jan 13, Thanks for the info and the ideas. The generator worked without doing any repairs.

EICO Model and Documentation

The generator was capable of either sine or square wave outputs. When I opened it up, it was obvious this thing has taken a fall of major proportions. Dec Mon 31, The Eico is also likely more forgiving. The output is high impedance and not meant to drive a speaker. Now I’m curious to find out if they were eici.

You eoco log in or sign up to reply here. I did not have a real requirement for another audio generator but the price was right and I like collecting old test equipment. Yes, my password is: Oct Mon 24, 5: A copy of the correct manual for your generator may still come to light.