Tayda sells the unbuffered 4049UBE. No 49er. Now what?

[blackieNYC]

What can I do with ten 4049UBEs?  The word is that they won't work in the tube sound fuzz variants.  The buffer adds gain apparently.  I can mess around with it - string all 6 of them together - and see what happens. But I really wanted another 49er type circuit.  Such a great distortion.

Any useful audio applications of interest for these?
Don't know how I missed it.  Tayda only carries the unbuffered 4049 and the unbuffered 4069 as well.

EDIT - unbuffered is what you want for all the tube sound variants.  My mistake.

[Mark Hammer]

Alan, I'm not sure where the confusion lies, but every single 4049-based distortion uses an UNbuffered chip.  indeed,that is probably why its all Tayda sells.

[blackieNYC]

Mark! Thanks! Got it.  There are a couple schematics out there that call for the buffered, maybe that's a mistake or maybe they are oddities.  I'll use a U to build a Devi Ever circuit that calls for a B and see what happens. Weird pedal. If she says 4049B she probably means it. We shall see. 

Found a pearl from RG: u is for usable, b is for bad.

[blackieNYC]

Found an old post from Lucifer's Trip:
A Great Destroyer uses a MC14049BCP, which is a Hex buffer.
http://www.luciferstrip.com/fuzz/greatdestroyer.jpg
If you use the unbuffered version, MC14049, you will not get the crazy oscillations it is known for, but just normal distortion.

I'm building another 49'er, but no great Destroyer for now. Wacky thing.  Probably the happy result of a part number mistake.  Gotta love it.

[duck_arse]

don't spend time looking for a buffered 4069, they don't exist. they are an unbuffered inverter.

[bloxstompboxes]

Note to self, Tayda also carries the tactile switches used on DOD pedals. No need to buy on ebay. Tayda is also cheaper. Doh!

[garcho]

Have something against Mouser et al.?
The BUFFERED 4049, which doesn't seem to be available at Tayda, is $0.44 at Mouser, DIP or SMD, no minimum order, and took about 3 seconds to find every version you might want, all neatly organized, displayed however you find useful. The 4049U is 40¢/50¢ SMD/DIP. They're 45¢ at Small Bear. Surely there are other things you need from them to justify the *gasp* ungodly cost of shipping (maybe 4 bucks for standard 7-10 days, a buck/day or two more than Tayda). Mouser also has 10¢ tactile switches. Worth a look!
I buy almost everything from Small Bear and Mouser (i live in the US). I've found that their prices are close enough to the uber-cheap eBay items but they're all in-spec and exactly what i thought i was ordering.

[blackieNYC]

Thanks G, I'll pick one up some time. I've confused everyone - I didnt know the (only?) pedal design that needs that B chip happened to be one I was interested in, along with those other tube-sound-fuzz pedals, using the more common U chip. Thought they were all using the same chip.

Breadboarded my 2nd Forty Niner. No anderton filter this time. I upped the feedback resistor on the op amp to a 1M pot. More distortion, still very smooth. It's followed by a dual band parametric that puts a sharp little peak between 120hz and 500hz, and a 2nd little peak between 1.2k and 4k. The highs add a little definition and bite for a solo sound while the low frequency parametric allows you to tune the low end to match any entrant into the monster truck rally.