Ruby Idea

[kurtlives]

Here's my idea for a custom Ruby...

Its two Ruby circuits powered by a 12V transformer (regulated and filtered). The two circuits will be switchable, one will be a standard(ish) Ruby the other will have Bassman mods.

Right after the input and before the Ruby's will be a Valvecaster http://www.diystompboxes.com/smfforum/index.php?topic=63479.0 . It will be like the on-board distortion. It will be switchable so its not always on. Transformer + tube = cool pedal.

This will all be mounted in one enclosure. On the enclosure will be a speaker. There will be a switch though to select between the speaker and a speaker out jack.

Here's a diagram to help visualize it all....


Anyone have any suggestions or see any issues. Any input would be good.

[kurtlives]

I realize now that I need output selectorswitch instead of that switch to select Ruby's.

[birt]

just use a switching jack for the speaker out instead of that seperate switch

[kurtlives]

I was told about these...where can I find one and how do they work?

[jakehop]

Switching jacks can be bought at most stores. Banzai carries them, I'm sure Mouser does too!

Be sure to only have one Ruby connected to the speaker at a time. Problems can arise when having two amps in parallel on one load, when not made for bridging. Have a DPDT switch between the valvecasters output and the ruby, and the ruby's out and the speaker. Use a 3PDT if you want a LED.

Jake

[frequencycentral]

Wouldn't it be possibe to use just one Ruby and have the Bassman mod switchable using a 3pdt, switching over the two cap changes and the one resistor change?

[ambulancevoice]

i have an easy way of doing this
ill draw you up a schematic
give me a sec

[kurtlives]

Wouldn't it be possibe to use just one Ruby and have the Bassman mod switchable using a 3pdt, switching over the two cap changes and the one resistor change?

Probably but that's not how I roll.

[dxm1]

Here's one way...

[ambulancevoice]

i doubt thats TO MUCH for you 

but if you want to switch between two circuits even though there the same except for two caps
then may i suggest a 3pdt! and maybe make it a rack mount unit with a footswitch! man that would be fun
like the R2D2 (two Rat's in a rack mount)

[kurtlives]

Here's one way...

How does this look? Thanks so much for the schem!

[kurtlives]

Also the Ruby looks almost identical to the Noisey Criket. Besides the tone control (which I hear sucks) and the grit switch they are identical..well almost (3.3K vs 3.9K and what not).

Anyways is that grit switch a fun feature?

[kurtlives]

I was looking at the LM386's datasheet. It seems the amp really would operate best with a 16ohm load. I plan on using a 4ohm speaker, my IC will get a bit hot then me thinks.