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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A special thank you to the ‘new’ guys that helping out. That oscillator will drive a speaker if you add a 70 volt line transformer to eeico. Before powering it up I did a visual inspection of the circuitry and checked for any obvious shorts etc.

What’s the range of the variable cap? The audio cable that came with the generator looked like it was made to check stereo amplifiers.

Converted Eico signal generator into Fender Tweed Champ 5c1. A copy of the correct manual for your generator may still sico to light. Skip to main content. However, Eico’s documentation always matched the item that was shipped; your generator came with a manual that reflected the tube line-up in it.

Eico 377 to 5c1 Champ conversion

Your name or email address: The mini tube was obvious due to socket size. Dec 28, 3. The Eico is also likely more forgiving. 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.


I thought it was an Eicoand it is labeled as such. Search Media New Media. The square wave performance is OK and seems to be optimal around Hz. Overall the HP is a much better oscillator but the Eico is definitely a usable piece of test equipment. Delivery times may vary, especially during peak periods.

Edited to include the pics The 6FG7 replaces the 6SN7. I spent an hour slowly working the face plate and chassis back into shape. Sep Mon 12, 4: This amount is subject to change until you make payment.

Quick and simple project finished. Switching the two produced an unrecognizable form, so I figured that wasn’t correct, or the instrument is broken. I didn’t even think about the original tubes being octals. The wiring on the octal socket appears to be consistent with a 6SJ7 or similar tube. It is obvious someone has 3777 the capacitors.

The VE6KQ Website – Eico Audio Generator

Yes, my password is: You simply have a newer version of the generator than the schematic eivo was posted on BAMA. Here are some pics The version arrived in like new condition except for white oxidation on the cadmium plated steel chassis and the factory tag still on the handle.


The tubes called out on the schematic you posted are octals. The dial accuracy is OK but not great. Dec 28, 6.

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This generator has become my preferred generator for use over my HP oscillator.

Eico to 5c1 Champ conversion | The Gear Page

Back to home page Return to top. Home Forums Recent Posts. Portland, Maine, United States. BaxtercatDec 28, I power it up slowly using a Variac on the ac line. A total of 5 tubes are used including a 6X5 rectifier. Books Support This Site: I will set about trying to trace out a schematic on it. All are longtime members that stepped up to the invite to help out by volunteering their time and effort to help the membership experience on TGP stay on the even keel.

The generator was capable of either sine or square wave outputs.