Sharkfin alternative

[PeakyBlinders]

I'd like to build a Sample Filter Hold Pedal, and i've tried the Tonepad FSH1 PCB, but i was not really satisfied with my build.
Now i see the Sharkfin PCB is no more available, is there a reason for it?, and does someone know a good alternative? sry for my rusty english btw.

best regards

[bsoncini]

Never built it. But there is this.

https://www.deadendfx.com/product/f1sh

[Betty Wont]

Pedalpcb has a really nice digital s/h eeprom patch on their custom programs. It sounds great, has no set up or finicky calibration.
https://www.pedalpcb.com/product/eeprombuilder/

[fair.child]

I do have extra shark fin PCB if you want it. Just DM me

[PeakyBlinders]

thanks to all of you for the recommendations, this eeprombuilder thing looks interesting, i 'm not a huge fan of digital pedals, but i guess in case of the S/H, it will be a good thing to get rid of that oscillation noise often happens on this analog curcuit.

best regards

[PMowdes2]

Never built it. But there is this.

https://www.deadendfx.com/product/f1sh

I was never quite satisfied with our version, I should not have used multiturn trimmers because dialling it in is a bitch, also I think that there was some mention of an error with one of the transistors from the original tracing that has been perpetuated down the years including in our design.  The S&H works but it's a little lacklustre and the autowah is nowhere near as good as something like the frostwave funk-a-duck or the Meatball.

[Bret608]

I built an older Sharkfin I had around and it sure is a fun and interesting circuit. But I can totally see why multi-turns would be a pain in that context!

[gordo]

I like the Sharkfin a lot more than the Tonepad board.  The 4pdt gets rid of the bypassed background noise.  I had to troubleshoot the board for ages though and it sat in my box of fail for a while.  When I solder in 8pin sockets I usually hit pins 1 and 5 and then make sure I have it seated on the board properly.  How can you stare at a board for hours and not realize that you forgot to solder the other pins?

I think it was the first time I'd considered that age may be taking it's toll after all...

[jtn191]

It's a temperamental circuit and I don't think there's much demand for S&H circuits, which is probably why it got discontinued. I bought one and am tweaking the circuit (asked about the build doc and Q4 tweaks in another thread).
best build doc I could find is https://web.archive.org/web/20180712194845/http://www.madbeanpedals.com/projects/Sharkfin/Sharkfin_2015.pdf
I've been out of the DIY scene for a bit and my options were to buy a Sharkfin second hand or look at clones on Reverb/Ebay

Here's what the circuit is presently like. I did noise reduction in post

[Bret608]

Sounds good and pretty much just the same as my build. Do you get ticking in bypass when you're in S/H mode? That's pretty much the only issue I've had.

[jtn191]

trying not to hijack op's thread, just trying to show what to expect
no it's clean on bypass. just noisy, has a bit of a volume drop when engaged. the S&H seems to mostly stick to like the sub bass range--I think it's because the transistor in Q4 has lower gain than a 2N5088