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Author Topic: Toellner TOE 7404 function generator.  (Read 2002 times)

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Offline ktuluTopic starter

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Toellner TOE 7404 function generator.
« on: December 07, 2018, 08:50:31 am »
Hello.
I have a TOE 7404 function generator for which I'm unable to find schematics or service manual. (or calibration guide maybe)
The only thing available is a few page long basic user guide...
I would be really thankful if somebody could share at least some schematics.
Thank you.
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Offline Chris56000

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Re: Toellner TOE 7404 function generator.
« Reply #1 on: December 07, 2018, 03:53:40 pm »
Hi!

I've got something but it's barely readable and will need redrawing before I can post it I'm afraid!

What fault symptom do you have?

The last one of those generators went for over £150 which was too much for me to buy, regrettably!

Please bear with me and I'll try and get them redrawn & posted!

Chris Williams
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It's an enigma that's what it is!! This thing's not fixed because it doesn't want to be fixed!!
 

Offline ktuluTopic starter

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Re: Toellner TOE 7404 function generator.
« Reply #2 on: December 07, 2018, 05:38:44 pm »
Thanks, I will wait.
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Offline ktuluTopic starter

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Re: Toellner TOE 7404 function generator.
« Reply #3 on: December 08, 2018, 09:27:03 am »
I managed to find schematics for the older version that has no frequency counter, thanks to a couple of nice fellas from a german forum. The entire board is redesigned, (sadly) they went from through hole to smd.
Also there are many component changes after a quick look.
At least I have some starting point. (I want to perform some alignments)
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Offline paulbt

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Re: Toellner TOE 7404 function generator.
« Reply #4 on: June 01, 2020, 10:53:13 am »
Hello!
@ktulu could you please share your findings? I mean the schematics for toe7402...
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"Simplicity is the ultimate sophistication."  Leonardo Da Vinci
 

Offline ktuluTopic starter

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Re: Toellner TOE 7404 function generator.
« Reply #5 on: June 06, 2020, 07:01:49 pm »
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