A few V3204 BBD chips available

Hi all, that lot is sold out now, but we went back to the supplier and they said they had about 70 more they could ship, so we jumped on that (I don't know how this works... did they find them in a drawer somewhere since we bought that last lot? Oh the NOS gray market world...).

Anyway, looks like we will have a few more to sell in a week or so. I'll post here when they are on the website.

If you already bought some, please post your experience with them. We only tested a small sample and we'd like to know about any dead ones you encounter.
 
owlexifry said:
where does one acquire one of these HF-2 boards?
Click to expand...
I learned that PedalPCB's Byzantium or Mad Bean's Fraudhacker can be used.

@blackhatboojum shared this in a build report:

Thanks! When I referred to the BF-2B, I was actually referring to my Blackhat edition of the standard BF-2 flanger. Which is just that. A Boss BF-2. I can answer your question though, and the difference is just one capacitor value. The cap into the second op amp stage on the HF-2 is 47nF. On the BF-2B it’s 10nF.

Now, the differences between the BF-2 and the HF-2/BF-2B are a little more interesting. The obvious one is the BBD, which most of us are already aware of. The feedback resistor value on the BF-2 is 39k. The HF-2 is 22k. The clock trimpot on the BF-2 is 500k and on the HF-2 it’s 1 meg. The resistor following the trimpot is 300k on the BF-2 and 100K on the HF-2. The HF-2 also has an additional power filtering stage after the voltage regulator. There’s a 33ohm resistor and then a 47uF cap to ground. The clock chip, BBD, clock trim pot, and associated transistor pull power from this node whereas, the BF-2 does not.

blackhatboojum

Post in thread 'HF-2 Blackhat Edition flanger'

Awesome build!

I’ve only seen the schematics for the HF-2, but I was always under the impression that the HF-2 and the BF-2B were identical circuits, just one marketed towards bassists and one towards guitarists. Are there actually any different values between the two?
Click to expand...


Thanks! When I referred to the BF-2B, I was actually referring to my Blackhat edition of the standard BF-2 flanger. Which is just that. A Boss BF-2. I can answer your question though, and the difference is just one capacitor value. The cap into the second op amp stage on the HF-2 is 47nF. On the BF-2B it’s...
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