Dallas Rangemaster [vero]

[fig]

Just the bare bones, but it works well and was a fun build. Shout out to Steve at SB for the schematic and transistor.
The switch wiring is crap, but as I said it works

 

[caiofilipini]

That knob, though!

 

[caiofilipini]

Also, is that an A100K pot? Isn't it supposed to be a 10K?

 

[fig]

yeah, good eye. I need to swap it.

 

[fig]

More better -thanks my friend!

 

[caiofilipini]

How does it sound? Also, just out of curiosity, what did you set the bias to?

 

[fig]

How does it sound? Also, just out of curiosity, what did you set the bias to?

It sounded exactly like a 200Hz sine wave when I benched it so that is promising. I'll let you know how a guitar sounds through it today.
I ended up biasing the collector right a 7 volts using resistors rather than a trimpot to save on a bit of space.
I could have reduced the board by 2 rows but it fit fine. I thought about hard-wiring my next project, so would will also probably be a simple one. We'll see!

 

[fig]

Good job, I haven't done a Vero in forever, only use it for utility builds now. Does the knob weigh more than the rest of the pedal?! And a 1590a build! Super tight work.

It does weigh more than the entire rest of the build!
Thanks!

 

[caiofilipini]

I ended up biasing the collector right a 7 volts using resistors rather than a trimpot to save on a bit of space.

Neat! That's exactly how I did my "mojo" Rangemaster too:

OC44 Rangemaster

Not a PedalPCB build, but I figured I should post it anyway. I've been obsessed with treble boosters for the past few months. After some searching, I found this Mullard OC44 transistor that tested somewhat low for the recommended hFE levels for a treble booster, but I tested it anyway and LOVED...

forum.pedalpcb.com

 

[fig]

I'll let you know how a guitar sounds through it today.

It's finally today! It was surprisingly quiet, and sounds pretty amazing considering it's only 8 components.
I managed to wire the new pot in reverse, but it's fine as a reverse-taper.

I should probably vero that Maestro on the BB and box it up too. I zapped a Ge messing with a trimpot. I have a suitable replacement, just have to get in gear.

 

[Mcknib]

Nice I like it, I like it a lot

I think you've given the rangemaster a new meaning

A wee bit of heat under that knob and you could cook yer breakfast on it In fact you could cook us all breakfast

I'll go for pancakes....please

 

[JamieJ]

That knob is absolutely bonkers Tim. Love it. I bet it’s great for adjusting it with your foot as you play.