Laney VC15 - In need of sharper and clearer pdf copy.

[vintagekiki]

VC15-110 (2009) schematics

VC15-110 (2009).pdf

ahseng thank you veru much for schematics

[Sea Chief]

Hi abseng, would you have the -pre- 2009 schematic for the spring reverb VC15? like you I can only find fuzzy www ones.

Cracking amp this- never thought I'd have a laney/ being a fender amp nut. but works a treat with my single coil tele & strat.

[ahseng]

Hi abseng, would you have the -pre- 2009 schematic for the spring reverb VC15? like you I can only find fuzzy www ones.

Cracking amp this- never thought I'd have a laney/ being a fender amp nut. but works a treat with my single coil tele & strat.

I'm afraid I don't sir. Have you tried emailing laney? They were responsive when this was.

[vintagekiki]

Laney VC15-110

https://music-electronics-forum.com/showthread.php?t=41075&p=537099&viewfull=1#post537099

[Sea Chief]

https://music-electronics-forum.com/showthread.php?t=41075&p=537099&viewfull=1#post537099

Thanks alot. weird but I can't find the reverb circuit within it.. is it to do with the optional (maybe later version) pcb area, at the top of the schematic? I'm trying to see if any 1/2 of the preamp tubes are part of the reverb circuit- wishfully thinking maybe-?

[vintagekiki]

I can't find the reverb circuit within it.. is it to do with the optional (maybe later version) pcb area, at the top of the schematic?

Schematics position Up 7 & 8 / Right B

For reverb used IC U2A/B (TL072) and U3A (TL072)
Reverb connectors SK4 / SK5
Reverb pot VR7 (220KA)

[Sea Chief]

Schematics position Up 7 & 8 / Right B

For reverb used IC U2A/B (TL072) and U3A (TL072)
Reverb connectors SK4 / SK5
Reverb pot VR7 (220KA)

Got it- thanks vintagekiki! so these chips TL072 are instead of a nice tube-driven reverb, yes? or is any part of the reverb circuit using tube?

[vintagekiki]

When forming a sound for reverb, unimportant if the reverb passes from a tube or solid state because the sound goes through mechanical (spring) delay lines.

[Sea Chief]

When forming a sound for reverb, unimportant if the reverb passes from a tube or solid state because the sound goes through mechanical (spring) delay lines.
[ATTACH=CONFIG]54794[/ATTACH]

But aren't tube reverbs meant to sound better tho? thinking along fender avenue, PR, TR etc.. I'm sure part of that lovely sound is due to tubes having some say in the matter.

[g1]

What did your ears tell you Chief? I don't remember you saying the reverb sounded crap.
All else is placebo.

[Sea Chief]

What did your ears tell you Chief? I don't remember you saying the reverb sounded crap.
All else is placebo.

Good question yes, understood G1.




I think it does sound a little bit crappy.

[J M Fahey]

But aren't tube reverbs meant to sound better tho? thinking along fender avenue, PR, TR etc.. I'm sure part of that lovely sound is due to tubes having some say in the matter.

Well, thatīs a somewhat simplistic point of view.

Tubes by themselves donīt do "magic" automatically.

They do have some weird quirks which we happen to love, but we must exploit them.

Just "going through a tube", at low signal levels so it behaves, clean and flat, "does nothing" to sound.

Now if you use a Tube power amp things change, doubly so if you overdrive it, but you need to reach that point.

Op Amps driving reverb tanks are fine and popuklar in MANY all tube signal path amps, including modern Fender and many others ... and Laney of course

One point in favour of old style Fender reverb is that they drove it HARD; that transformer coupled 12AT7 easily put out at least 1W RMS, maybe up to 2 W, and SLAMS those springs.

But you would need to add the full Reverb circuit: 2 double triodes, transformer, etc. if you want that improvement, just adding a triode here or there is not enough.

But again, Op Amp reverbs sound quite good.

Here Laney walked the extra mile and used two Op Amps in parallel to drive that tank, not bad at all.

[vintagekiki]

But aren't tube reverbs meant to sound better tho? thinking along fender avenue, PR, TR etc.. I'm sure part of that lovely sound is due to tubes having some say in the matter.

If you say so, then so be it.

Meditation Topic.
If you convert the wave signal to mp3 and then transfer the resulting mp3 back to wave, what will be the quality of the signal in the end?

The same story applies when a clean signal is passed through digital devices (phaser, chorus, flanger, delay) or through mechanical delay devices.
Question
What is left of a clean signal at the output of a digital or mechanical device?