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question about the momentary mods on the switch board:

is there any external indication to let you know if the system is in latching more or momentary mode?

does it remember the settings after a power cycle?

Thanks

T

necro bump.

i'm having the exact same issue.

D9E diodes, TL274 op amp, 1044scpa pump.

hi all,

i'm not that familiy with XLRs and balanced signals so this might be a really basic question.

I'm trying to make a simple 3-channel mixer that can take XLR balanced and 1/4" unbalanced signals, mix them, and then output a balanced XLR signal .

The output side is no problem - i found an active DI circuit that i can use to convert the mixer output to a balanced signal.

The problem is on the input side.  I'm not sure how to get the XLR signal into the AMZ mixer circuit "properly".  Do i just take the ground and pin 3 of the XLR and use those or is there something else that i need to do to the signal first before it goes into the mixer?

Thanks

T

It worked! Thanks!

thanks. i'll give this a try and see what happens!

I built a ebmm 3band  bass preamp in a pedal but I'm just barely getting unity gain with the volume at max - which is expected since this was originally an onboard preamp.

I would like to get more than unity gain from this circuit but I'm not that familiar with this topology.  Would I add a feedback resistor between pins 1 and 2 to get more gain?

Thanks

It's that time where I need to look for a new pc.  Would a tablet windows pc be able to run something like eagle and inkscape?  I'd love to be able to work on layouts while I ride the train to work lol.

Also would a tablet pc be strong enough for reaper and video editing?

yeah i know this isn't mouser's fault.  I emailed them about it hoping that it was a website mistake, but they confirmed that there was a price increase on 3/16/17

honestly, i can't really see the justification for a sudden near 50% price increase unless the company is being run by incompetent people who don't know how to forecast sales properly.

Koa-Speer has now gone from a middle-of-the-pack price to the highest price for through hole resistors.

So i have dozens and dozens of projects saved in my mouser account.  All of them with Koa-Speer 1% metal film resistors because it was a decent balance between quality and cost.

I log in today to make an order and for whatever reason the cost of all Koa-Speer resistors has almost doubled!  they were around 17 cents in singles and now they're up around  32 cents each!

not impressed.

Mouser has TO-92 2n5457 jfets in stock

http://ca.mouser.com/ProductDetail/Central-Semiconductor/2N5457/?qs=sGAEpiMZZMv4z0HnGdrLjg9G5E9sLeJqmxdQjOc5RIc%3d

edit.

fixed the problem as i was posting IC voltages *embarrassed*

nothing to see here..

move along.

you are a scholar and a gentleman, sir.

Is there any way to get my hands on a Zero Point Mini PCB?

what about the resistor that's in parallel with the cap?

Just a general question about JFETs as used in amp sim pedals like the chunk chunk.

i'll use the gausmarkov dr boogey schematic for reference here:



this question pertains to R2 (1k8) and C1 (1u) (and i guess to an extent R6 & C6 and R12 & C9)

What/how do these values affect the gain coming out of q1?    I've fooled around with adjusting C1 and i see that when i drop this value the amount of gain/saturation drops, but i'm not sure why it's doing this?  do these only have an impact on the overall gain of Q1?