Does the Reverb control actually add increasing amount of reverb effect if you play the guitar and turn the Reverb control up slowly? If the drive valve (tube), recovery valve stage and reverb tank are working properly there should be plenty of reverb by 3 or 4 on the dial. Have you tried changing t...

pacifica7 wrote:..but where are the mods? i can't see them on schematic attached, seems original..

Download the PDF...you will see the mod there.

Malcolm Moore explains why limitations are not preferable "For a guitar, the audio spectrum needs are wide. ...The lower open E string has a fundamental of about 128 Hz, and significant harmonics are the second, fourth, sixth and eighth meaning the spectrum here extends to 1024 Hz. On the twel...

+1 what Phil said. Also, clean the RCA plugs on the leads to and from the reverb tank, preferably with a solvent that doesn't leave any residue (ie, contact cleaner). Spray contact cleaner onto and into the RCA sockets on the reverb tank, and plug & unplug the leads into them several times. Remo...

Funky funky! We gots to get gutshots of this!

On a serious note, I think the market for amp stands (or cradles, as I've seen them called elsewhere) is pretty limited. It's not as if every home should have one. Yeah, I guess you're right. Seems like there's been an explosion of "boutique" amps and pedals on the market these last few y...

Cheers Tasteless. The imaginary beer is going down nicely. I'm glad you like the design of the stand, and hope you have fun building and using one. :thumbsup Now watch as variations of your brilliant design pop up on boutique amp websites and Asian online megastores for the next 3 years or so! You ...

Devilishly clever, Lucifer! This is a "must build".

Oh sorry - I misread your OP. Check the diode junctions on flip flop transistors Q2 and Q3 with a DMM / diode tester when the pedal is off and powered down. They will be 500-620mV base-emitter and collector-base if the transistors are OK. If the diode junctions read low(<300mV) you can replace the 2...

Tried putting a higher resistor value in for the drop-down resistor but it didn't work. I put in as high as 50k and it's just making the LED too dim when the pedal is on. ??? Try a smaller value resistor in series with the LED to make it brighter...a larger value will make it dimmer. Replace R35 (3...

I thought the Mustang switches were always 3 position on-off-on type, so not suitable for 3 way pickup selector on one switch.

Can you post a drawing or image of the switches, and test the contacts with a multimeter to establish whether the switches are on-off-on or on-on-on?

Sounds like you got a good score, as good as a Christmas present, perhaps.... made extra special with your time and effort. Wiring diagrams and setup specs would be appreciated too..... :thumbsup Controls are (from closest to the neck) front pickup volume, rear pickup volume, and master tone (closes...

Looks like an RBX170, but could be an ERB170? Discontinued a few years ago. Christmas present?

Yeah, Groovenut is dead on. The CVR uses the brownface-era (and Princetone Reverb) bias-modulated tremolo, the trem/vibrato is in the power amp, not the preamp. Exactly. I have converted a Brownface / bias feed tremolo circuit to a Blackface circuit, but it was a LOT of work to do it on the old fib...

I have a Fender Custom Vibrolux Reissue. It has reverb and vibrato on both the Normal and Bright inputs. What I need to do is remove the vibrato and reverb from the Normal channel. I still want the vibrato and reverb in the Bright channel. I have to say I'm a bit surprised to hear that; the Custom ...

Leepyringa wrote:Guys ! Please reply!

Am I right ?

C2 - 10 uF
R4 - 10kOhm
R1 - 8000 MOhm

I'm a little confused , but want to make my tr-2 less noisy ... please help!

Maybe Analogman could find a 8000 Mohm resistor for R1, but I use a 1,000 ohm 'cos it's much easier to find.

Hi i build this circuit and i have a problem. it is loud.is louder than bypass signal. how can i increase the reverb??? I don't understand your problem. Do you want to make the reverb louder than the bypass signal? Or, is the reverb signal too loud? If you build the circuit from the schematic on pa...

Welcome to the pirate crew, Snaxter. I enjoyed the detailed description and images. You must surely be a frontrunner for an award for the most comprehensive overhaul of a Boss pedal ever! Also, I wondered if I should replace the power diode with a different type better suited for an external 12V pow...

Another thing is the FX loop volume control. Since changing the loop to a serial one it has become redundant...it almost acts like a master volume but, as the control is turned down, it becomes drenched in reverb, even when the reverb is off. What I'd quite like to do is short the FX loop control s...

Inquiring minds want to know, so I found the PCB again and took snapshots of the track side. Not a SMD in sight on this one. I've seen through-hole PCBs with SMDs on the track side on Laney Fussion guitar amps, various SS bass and PA amps, but not on an LC30 or LC30-II so far. :hmmm: The new Chinese...