[TillM]

Did you have prebuilt DOAs or did you solder them by yourself.
This is mostly the issue.
The ticking is weird, if you have the same like drew571.
The ticking can come from a leaking capacitor or a faulty resistor.
Please also check this.
If you have the issue on three preamps, then you make three times the same mistake.
Jef sells top notch stuff, I don't think that this problem is any mechanical.

[albertoaudioengineer]

Did you have prebuilt DOAs or did you solder them by yourself.
This is mostly the issue.
The ticking is weird, if you have the same like drew571.
The ticking can come from a leaking capacitor or a faulty resistor.
Please also check this.
If you have the issue on three preamps, then you make three times the same mistake.
Jef sells top notch stuff, I don't think that this problem is any mechanical.

I agree Jeffs quality is top notch. , it was not his parts or the build, the DOA was the Rogue Five red dot.

 I just tried a different 500 lunchbox and that fixed the issue.  I was running them in a chameleon 880 and for some reason that was happening . As soon as i switched to the Vintage king lunchbox  everything worked perfectly fine.

[jchudyk]

Any thoughts on one why the signal would cut out on a VP26 RevB when the phase or pad switch is engaged?  It doesn't happen all the time.  Exercising, the switches solve the issue. Could it be dirty contacts on the switch? Lube them? Thanks!

[jsteiger]

Any thoughts on one why the signal would cut out on a VP26 RevB when the phase or pad switch is engaged?  It doesn't happen all the time.  Exercising, the switches solve the issue. Could it be dirty contacts on the switch? Lube them? Thanks!

Classic symptoms of a bad solder joint somewhere on the build. Not necessarily on the pad or phase switch.

[jchudyk]

Classic symptoms of a bad solder joint somewhere on the build. Not necessarily on the pad or phase switch.

Thanks Jeff!

[drew571]

still having issues with my VP26.  really didn't know what else to try.  tried different slots in my 500 lunchbox.  same issue.  my vp28's work fine in the same slots.  finally decided to just build another one to see if i maybe just had a bad component on the first one.  same exact issue.  maybe i'm placing something in the wrong place or backwards.   i'll post a pic.  it might be helpful if someone else has this same build if they could post a pic of of a completed and properly functioning unit that i could compare to. 

[jsteiger]

still having issues with my VP26.  really didn't know what else to try.  tried different slots in my 500 lunchbox.  same issue.  my vp28's work fine in the same slots.  finally decided to just build another one to see if i maybe just had a bad component on the first one.  same exact issue.  maybe i'm placing something in the wrong place or backwards.   i'll post a pic.  it might be helpful if someone else has this same build if they could post a pic of of a completed and properly functioning unit that i could compare to.

You've got R2 and R3 flipped with each other.

[drew571]

ah!  ok.  so next question, anyone in Nashville have a Hakko desoldering gun?  I'll pay you to switch the two resistors!  Just PM me!

[mrmike186]

My vp26 that had been working perfectly for a few months has just stopped working. I have switched out doa's and changed slots in the rack but no sound at all. I don't even know where to start.

[jsteiger]

My vp26 that had been working perfectly for a few months has just stopped working. I have switched out doa's and changed slots in the rack but no sound at all. I don't even know where to start.

If you skim back thru this thread, this is the most common thing that has been popping up lately. Sounds like a bad solder joint to me.

[drew571]

what brand resistors are used for the vp26's?  need to order a couple replacements...

[jsteiger]

what brand resistors are used for the vp26's?  need to order a couple replacements...

Xicon for most things is fine.

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