FS/FT: Cool Audio V3205 4096 stage BBD, MN3205 replacement

Post by **rusty_pinto** » 04 Jan 2010, 18:05

Hello everyone,

I have 150 of these available.

Here's my pricing for the given quantity:
1-49 pcs; $4
50-150 pcs; $3

Email youngpedals@yahoo.com if interested. I'm Paypal compliant

Post by **rusty_pinto** » 04 Jan 2010, 18:49

Trade items for me:

Ge diodes (1N34A, OA47/90/91/95, 1N270, etc)

Small signal Schottkey is cool too if you have it, nothing over 1A type ratings.

Ge PNP/NPN; any, try me, low leakage preferred of course.

3PDT and DPDT switches (new only)

Interesting or un-interesting enclosures. always need Hammond 1590B/BB/DD

Run'o'the mill type items (bulk trades):

FETs: 2N5457/58, 2N7000, J201

Op-amps: TL071/72/82, 4558s, OPA2134, NE5532

Caps: Panasonic (preferred)/other poly or metal film types: 220/330/470p, 1/2.2/4.7/10/22/47/68/100/220/1000nF

500VDC electrolytics; 10-220uF

Post by **rusty_pinto** » 04 Jan 2010, 19:13

Just for the count, 141 left

Post by **rusty_pinto** » 15 Jan 2010, 00:49

140 left, whoo...!

I tried these in an Aquapuss clone, they're really not bad at all.

See also my Time Stomp (analog delay w/ tap tempo) where i use 3 of these chips. Sorry for the slight bit of distortion, its since been cleaned up (that was a prototype in the demo).

or

ckyvick · Post by **ckyvick** » 15 Jan 2010, 05:49

rusty_pinto wrote:See also my Time Stomp (analog delay w/ tap tempo)

wanna share how this is done?

Post by **rusty_pinto** » 15 Jan 2010, 13:57

ckyvick wrote:
rusty_pinto wrote:See also my Time Stomp (analog delay w/ tap tempo)
wanna share how this is done?

Its done using PIC microcontrollers. Its relatively simple if you know C code to get this type of controller working. The type of signal generated is just like the chip Electro Harmonix uses (the CD4047), only lower in magnitude depending on the supply you're using for the BBD. The signal is also more exact/ appropriate for BBDs (Eg. look at the MNXXXX series datasheet and they give you a clock wave-form example showing the cross-point for the BBD charge transfer). So basically what i achieved is a free running astable clock, but the potentiometer control and tap switch work interchangeably to set the delay time. The only tricky part is knowing the delay time bounds of the BBD clock(s) because this is dependent on the number of chips you use and the tempo resolution, etc. etc.

Fun stuff

But not to rob this thread, i still have a bunch of V3205's for sale

salocin · Post by **salocin** » 15 Jan 2010, 23:58

How much to ship some to NZ?

Post by **rusty_pinto** » 16 Jan 2010, 00:14

IC tube + envelope + post = 5USD to New Zealand.

Its more if you want tracking or registered mail.

Seiche · Post by **Seiche** » 13 Feb 2012, 17:38

rusty_pinto wrote:IC tube + envelope + post = 5USD to New Zealand.

Its more if you want tracking or registered mail.

hey Marcus,

sorry for digging this up. I was wondering if you had any v3205s left and how much shipping would be for 2-5 pieces? (I only need 2, but I guess it's smarter and greener to buy some more for future projects)

cheers

Post by **rusty_pinto** » 15 Feb 2012, 17:34

Yes, i have some left. I would say its like $4-5 for postage, envelope, IC tube pretty much anywhere in the world (for 1-10 devices).

Govmnt_Lacky · Post by **Govmnt_Lacky** » 15 Feb 2012, 17:44

rusty_pinto wrote:Yes, i have some left. I would say its like $4-5 for postage, envelope, IC tube pretty much anywhere in the world (for 1-10 devices).

Hey Marcus,

If you are still interested in trading for a few (2-4 pcs.) of the V3205s then I have some Germanium diodes and some Germanium transistor pairs to trade (PNP set 75/150 low leak, NPN set 60/80 low leak)

I also have a lot of op amps and other ICs, transistors, and various build items.

Message me and lets make a deal