Tube-Town Forum
Technik => Tech-Talk TT-Projekte => Thema gestartet von: Assaf am 27.01.2017 17:11
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Hey guys
I finished building the kit. so far not built in it's enclouser. today I tested it.
everything seem to turn on correct. pilot LED is on, Tubes are glowing. but no sounds at all.
my question: do I need for sure a foot switch in order to turn it on ? does it close the circuit ?
if that so - shouldn't I have clean guitar sound with no FS connected ?
when turning the unit off - I do hear the twang of the springs through my amp so I know it's alive but I may have done somethign wrote with routing have I ?
I will proceed to photos if needed
cheers
Assaf
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Hallo,
a footswitch is NOT needed.
Check the voltage and compare it with the voltage listed in the schematic.
Check the FAQ: https://www.tube-town.net/cms/?DIY/LoW-Projekte/FAQ_Low_Projekte
Ask someone with technical knowledge in your family or neighborhood for support.
Best regards, Dirk
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ok my bad..
This is the first time I work with this kind of jacks and I was sure that each pole of the sleeve and tip are the same. so now I soldered them on the correct pads of the jack and everything fires up !
still I would like to build a foot switch for the unit. a SPDT switch should be enough right ? 3 pins 1 is empty and 2 are for the ON position going to sleeve and pin of the jack ?
thanks for your help
the reverb sounds amazing!
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You just need to close the contact between the tip and the ground, that's all the switch must do.
Best regards, Dirk
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on it ;) thanks a lot!
I would get at some point to measuring voltages to compare and advise here if there is something I can do to modify it sound a little bit.
It seems like the Dwell from 7-10 is a little bit overdriven the signal as well as giving more dwelli reverb - I'm not sure is it normal ?
is there some way to do sound comparison with someone else's successful build of this reverb ? that would be great.
thanks ! :topjob:
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Ok
I tried just a test for foot switch
soldered a mono jack plug to a SPDT switch
on the middle the ground. on one of the outter poles - the tip
so it is working. BUT - there is a remarkebly amount of high-end and some treble consistent of the signal dropped when bypassing the effect.
I compared with A-B listening a few things:
A: Guitar > Amp - results in normal sounding of my guitar the way I know it.. really presence and high tone like (fender mustang)
B: Guitar > Spring (bypassed) > Amp - it is clean for sure with no wet signal. But again - lower comparing to the A mode
I also tried this which was really similar to the Guita > Amp:
Guitar > Spring (non bypassed but Mixer knob all the way down) - this sounded very similar to as when the guitar is plugged straight to the amp
any ideas what can I do to immitate a pure true bypass as if my guitar is going stright to the amp 'skipping' the effect unit ??
I would try to solder the 3rd pole of the footswitch to the ground as well but I don't belive it will change much or ??
cheers for your help and support!
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Sounds like that there is something wrong. With the footswitch you just pull the signal to ground, that's all.
Also, the TReverb allows extreme settings, which is IMO a benefit of the this reverb unit. Yes, you can boost the signal and overdirve it, you can also overdrive the amp or create very psychedelic sounds. You just play a litte bit with the Reverb until you find YOUR Reverb sound and than keep the settings.
Best regards, Dirk
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Hallo,
using a 12AU7 instead of the 12AT7 will lower the gain and makes the potentiometers work "smoother". If you should have a 12AU7 than feel free to try it.
Best regards, Dirk
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just found this https://www.youtube.com/watch?v=mWR28TsFsPc
check the demo starting at 20:00
regards, Dirk