Schematics for VANTAGE EM650

[ubijoux]

HI There
I have afriend that have one of those. It is nearly impossible to find a schematic. It seems that they are known under different names, so I guess the schematics will be identical.
The names are: Melos DE-1,Evans Echopet,Audiotek EC-555,Stage De-1, Maplin Echorder E44.Has anyone got one of these schematics..I would apreciate this.
Bye for Now
Robert

[ilcaccillo]

Hello,
this is an old thread but I have of these units to repair and I'm in desperate need of a schematic.

These are OEM analog delay units and were sold rebranded with a lot of different names and looks.
The schematic came in the second page of the Operation Manual.

These are some of the units that appear to be the same:

Melos DE-1
Stage DE-1
Better Echo Chamber EC-444
Echoman EM-150
Maplin Echorder EC444
Gemini Echorder EC444
Continental Echorder EC444
Phonic Echorder PH8020
Evans Echopet EP50
Evans Echopet EP-100
ERS ECH-802
PHONIA EC-400
Monacor EMM-1000
Monacor EMM-1200
Monacor EMM-2000
Mondivox Echo Chamber
BST Analogue Echo MCE 550
Europsonic ECH-802
Audiotek EC-555
Maplin Echorder E44
VANTAGE EM650
JHS Echotec ET-100
Electra EP 100
Redson DU-104A
Eli Analog echo SL-4040


Does anyone have the schematic for any of these units? Or the Manual?

Thank you so much

[The Dude]

I don't have anything, but I will say this. I've repaired lots of these older units simply looking up the datasheets for whatever chips they used. Most of the time, I've found that the sample circuit in the datasheet is pretty close to what's in the unit.

[ilcaccillo]

It could have similarities, but there's so many of these units around and all of them had the schematic in the manual that I'm sure it's possible to find the schematic somewhere.
Going to try to find the schematic if not I have to trace the circuit myself, but anyway someone might see this thread in the Future and get the schematic along the line for future users

thanks

[vintagekiki]

About Analog Delays

https://www.thegearpage.net/board/index.php?threads/analog-delays-chipsets-specs-and-years.1577898/
Analog Delays - Chipsets, Specs, And Years

https://www.diystompboxes.com/smfforum/index.php?topic=107319.0

http://experimentalistsanonymous.com/diy/Schematics/Delay%20Echo%20and%20Samplers/

http://schems.com/Schematics/Delay%20Echo%20and%20Samplers/?C=N;O=D

http://guitarwork.ru/electronic/delay.php

http://www.junradio.com/blog/ehffekty_delay_echo_i_semplery_dlja_muzykalnykh_instrume ntov/2017-04-02-787

http://www.kobra.hr/Schematics/Delay/

https://commons.wikimedia.org/wiki/File:First-Analog-Delay-Line-for-Guitars-1976.pdf

[The Dude]

This may or may not help. You'll have to see if it matches up to what you have. It's a poor scan and some of it seems to be missing, but maybe a starting point?

[ilcaccillo]

This may or may not help. You'll have to see if it matches up to what you have. It's a poor scan and some of it seems to be missing, but maybe a starting point?

[ATTACH=CONFIG]53836[/ATTACH]

Thank you so much , I will check that and compare it to my unit
Best Regards

[Mark Hammer]

That's a solid-state reverb. If the Vantage is a reverb simulator, rather than an echo, maybe.

[vintagekiki]

https://i0.wp.com/estecho.com/wp-content/uploads/2016/12/Univox_EM-200_schematics.jpg
Melos / Univox EM-200 Schematics

https://www.diystompboxes.com/smfforum/index.php?topic=107319.0
https://i.stack.imgur.com/24hbq.jpg
JHS Echotec ET-100

http://www.vintageunivox.com/schematics.html
http://4tubes.com/SCHEMATICS/Music-amps/Univox/
ec100-1.jpg; ec100-2.jpg; ec100-3.gif
ec80.jpg

https://viva-analog.com/unicord-ec-80a-tape-echo-study-repair/
Unicord EC-80A Tape Echo study-repair

[ilcaccillo]

Thank you so much