Tellun Neural Agonizer

[adambee7]

Your lucky yourself chap. Could have been more than a few opamps that would have been fried. Cricklewood were selling them bout 6 months ago for £3.50. i kid you not. i think they realised after i ordered 20. They had the intersil CA3280G and RCA CA3280H.

[sonicwarrior]

Today I finally started to assemble my Neural Agonizer:

Would you recommend to use the driver and recovery highpass filters or to left them out? (R84, R103, C43, C52, C56)

[sonicwarrior]

Damn, today I found out that I didn't buy the phone jacks and that Mouser doesn't sell them anymore.
Is there an alternative for the Kobiconn 161-3525?

Mouser only has a 161-3525L-E which according to the datasheet is totally different and won't fit the PCB.

Edit: Looks like the 161-352N-EX will do. It is mono and fits according to the datasheet.

[/mr]

I'm also intrigued by the optional components here...

I'm building a Tellun Neural Agonizer right now. A number of possible modifications are mentioned in the documentation, namely variations of some of the R and C values of different filters, etc. I've left most of these resistors/capacitors unmounted so far.

Are there any of these modifications that might be useful to have selectable via switches on the front panel, or should I just go for the default values? Or - as a compromise - mount sockets on the PCB, letting me put in different component values to try them out? What would you recommend?

[NoizeToyz]

Hi All,
I've happily stuffed my NA boards, and am now at the stage of going through the calibration stage. I've tried the steps explained in the PDF build document, however I seem to be getting unexpected readings on my 'scope.

I measure the square wave from my MOTM300 and it looks like a square wave on the scope (all good!) but when I test at the points mentioned in the build document and adjust the trimmers; they don't seem to have any effect. The document suggests that I should be seeing some signal in both pos and neg, but all I get is a flatline that is so far below the zero that I have to adjust the voltage sensitivity on the scope to see it.

It's probably due to me not setting the scope up properly...

I've built quite a few modules now, but only just got my 'scope which is a 20mHz analogue beast sat on my bench. I'm a bit of a noob using scopes so need a few tips on using it in the calibration stage of the TLN-156 build.
Cheers!

[NoizeToyz]

Hey,
Here's my 5u Moog panel layout - thought I'd share it, and maybe get some feedback. Feel free to use as you need it. I've put the Hi-Res PDF, the original Illustrator CS3 file, and a JPEG.

Ben over at Re:Synthesis has made some beautifully finished panels for me > http://www.bigbluewave.co.uk/resynthesis/resynthesis_home.htm

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MU 3u TLN-156.ai
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[sduck]

Very nice! After using mine for a few years I'd suggest grouping the feedback and LPF knobs together, and put the deform knob up on top - switching the deform and feedback knobs. The feedback and LPF knobs kind of work together. No ideas on your electrical issues - does the thing work otherwise?

[NoizeToyz]

Thanks sduck - that's some good advice; I haven't finished building it yet so had to guess which knobs would be the most important for twiddling!

Think I haven't finished building it yet so gonna put it together this weekend and see how it sounds - can't wait to hear the springy drones!