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    you can also use PN4393

    you can also use PN4393
  2. No it didn't, that caos was not caused by the...

    No it didn't, that caos was not caused by the standby switch being stock in the On position. It was something else.

    You can always leave the standby switch in the ON position in any tube amplifier...
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    Old thread but I'm at the Roland Bolt subject at...

    Old thread but I'm at the Roland Bolt subject at the moment.

    To connect a smartphone that outputs umbalanced consumer Line Level, you should connect it to the Low input that is better suited for...
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    Hello czech-one-2, sorry to revive this old...

    Hello czech-one-2,
    sorry to revive this old thread.

    The old Bolt60 website was mine, I made it around 2003 to help Bolt users get the schematics for these amps, nowadays the schematics are...
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    This is the circuit that was suggested to me, I...

    This is the circuit that was suggested to me, I will build this in the next days to try out:

    https://i.imgur.com/Ih5X7jF.png
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    Thank you so much

    Thank you so much
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    Hello, I made a drawing of something to try out,...

    Hello,
    I made a drawing of something to try out, could the LEDs be implemented this way?
    What do you guys think?

    thank you so much

    https://i.imgur.com/a9D4ckn.png
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    Because it's not relevant for what I'm trying to...

    Because it's not relevant for what I'm trying to build and the advice I asked for which is to power the LEDs from the phantom power supply.

    If anyone has any advice on how to add LEDs supplied by...
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    Please check it again, The Deep Blue circuit...

    Please check it again,
    The Deep Blue circuit uses a battery to power the LED,
    the LED or the battery are not needed for the Mute action, thats what stated and it's visible in the diagrams.

    The...
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    Thank you so much , I will check that and compare...

    Thank you so much , I will check that and compare it to my unit
    Best Regards
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    As far as I can see, I can only find one product...

    As far as I can see, I can only find one product in the Market that does this, it's the Orchid Electronics Mic Mute:

    http://orchid-electronics.co.uk/Mic_Mute_lite.htm

    All the other options seem...
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    Mic Mute Pedal - Phantom Power and LED

    Hi,
    I built a Mic Mute pedal for Condenser microphones, and I used this circuit:

    http://i64.tinypic.com/dfkgsn.png

    It works great, there's no pops or clicks when switching.

    But as I use it...
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    It could have similarities, but there's so many...

    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...
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    Hello, this is an old thread but I have of these...

    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...
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    This is the best affordable DDM that I ever seen,...

    This is the best affordable DDM that I ever seen, I love it.
    I also have a Fluke 179, but to be honest if at the time I bought the Fluke there was the UNIT-T at the market I would not spend money on...
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    Seems nice and easy enough, similar to the other...

    Seems nice and easy enough, similar to the other simple DIY projects circulations the web.
    But still no Display, or North and South Pole indicator and you need an external DMM.
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    Thanks for the link Antigua, I would preffer to...

    Thanks for the link Antigua,
    I would preffer to build a DIY version.

    The Elepro 3.0 Gauss meter seemed exactly what I need, but I don't know the status of the project at the moment, unfortunately...
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    Yes, unfortunately the Spin Doctor is not being...

    Yes, unfortunately the Spin Doctor is not being produced any longer.

    I've seen simple DIY projects like the one you posted, just using an 5V regulator and the hall sensor.

    It's pretty easy to...
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    So is this project completely dead? If so, can...

    So is this project completely dead?

    If so, can you guys please recommend an alternative to a DIY Gauss Meter?

    Or if anyone wants to sell their unit please let me know

    THank you so much
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    I'm also interested in this project. I know...

    I'm also interested in this project.

    I know that it was some years ago that you made the pcb's, but could you do another run?

    thanks
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    Hi, I'm late to the Elepro gauss 3.0 meter...

    Hi,
    I'm late to the Elepro gauss 3.0 meter party, but I would love to build one and I can get some more people interested.

    Elepro would you do another run of pcb's and pre-programmed PIC?
    ...
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    Beyond repair??? Not really, nothing is beyond...

    Beyond repair???

    Not really, nothing is beyond repair.

    Relax, study the circuit more, and learn more.

    I've repaired quite a few DD2/DD3 pedals. All had the D6 burned, some of them had a hole...
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    Hello Enzo, thanks for your input. And I...

    Hello Enzo, thanks for your input. And I understand what you are saying, it makes sense.

    But I have a repair shot for the last 5 years, we just repair audio/music equipment.
    I receive a lot of...
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    I'm trying to repair my 670 Flanger at the...

    I'm trying to repair my 670 Flanger at the moment.

    Symptoms are similar to other users, the pedal powers up, the led flashes accordingly to the speed dial setting, I have Dry signal but not any...
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    Just for reference not all 670 pedals have a...

    Just for reference not all 670 pedals have a transformer with 110V and 220V taps.
    Some pedals have a transformer with only one 110V primary without any other tap.

    It's the case in my pedal, it's...
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    Thanks Enzo, I was able to solve it. Sorry,...

    Thanks Enzo, I was able to solve it.

    Sorry,
    After all this work it was just RCA input jack (actually the output from the amp) that had a bad Chassis connection.
    Really Simple

    Oh Well,
    thanks...
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    I forgot to say something that might be really...

    I forgot to say something that might be really important,
    With the signal probe the signal I get at V3 Pins 2-7 (input) is much stronger than the signal I probe on Pin 1-6 (Output) So it seems the...
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    Fender Quad Reverb - No Reverb - SOLVED

    Hello I'm trying to fix a Fender Quad reverb but I'm stock and loosing my ideas.
    The Reverb Doesn't work, and I tried all I could to make it work and can't figure out what's going on.

    I Know the...
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