Building a Lell Clapper

[FUZZZZzzzz]

I want to build a Lell Clapper. It's a small  vintage Russian device that makes a clap sound when you trigger it (piezo). I already own a Lell Rototom and I think they share the same pcb because there are a lot of wire bridges and empty holes on it. So I found the schematic online. This place has pretty awesome schematics by the way http://www.ruskeys.net/eng/pasp.php



So I'm thinking about building a clone. Should be pretty cool. The pcb traces on my Rototom seem to let go of their surface underneath. They are very delicate to repair. Lots of vintage caps etc The only problem is the PARTS Im going to need to build it. There are a lot of things written on it and a lot of Russian too. Russian is a beautiful language, but not a language I can translate very easy. I thought you guys could help me out maybe? I'm looking for replacements/equivalents, but it has not been very easy so fAR See the schematic attached also.

K561NA7
K176ND10 or K176HD10
KP159 (replacement could be a NTE 159?)
k553ya2
KA5226 (replacement could be 1N5226 diode?)
KT3102EM (replacement could BC 538 or BC548B?)

Is there also someone who could translate some of the Russian content on this schematic?

[diffeq]

Diode КД522Б, same as 1N4148

Diode КС133А, 3.3v zener diode

к561ЛА7, quad NAND, same as CD4011A

К176ИР10 same as CD4006

К553УД2 is LM301 equivalent. I suppose any opamp will work.

КТ3201 is high gain NPN transistor. BC550 could be a substitute.

КР159НТ1Д, transistor matched pair, same as LM394

"тембр" - timbre, "чувств" - sensitivity, "вых" - output, "холл" - hall, which is supposedly decay.

I did not check the pinouts, only what functional equivalents are.

[FUZZZZzzzz]

that's an amazing answer. thank you for this!! Makes everything a lot easier. Can you also tell me what it says on the bottom right and in the center? If its of any use at all

Let's see if I can make this work.

[diffeq]

that's an amazing answer. thank you for this!! Makes everything a lot easier. Can you also tell me what it says on the bottom right and in the center? If its of any use at all

Let's see if I can make this work.

Sure:
П1 - печатная плата; printed circuit board.
КТ - контрольная точка; test point.
Клаппер. Схема электрическая принципиальная; Clapper. Electric schematic diagram.

Regarding the schematic itself. I assume D1, D2, D3 are a register/XOR noise generator, D4-D5 is a VCA that is controlled by D8 envelope, later fed to D9 bandpass filter. Interesting circuit, might have some unique sound to it.

[FUZZZZzzzz]

Well.. its a one trick pony, really, but a cool one imo

Its a electronic handclap.. used in many drum machines etc. I have a lot of trouble finding the datasheets for these ICs (so your help is very welcome). Funny how I easily get lost in a Russian maze of electronics without finding anything.

[diffeq]

Well.. its a one trick pony, really, but a cool one imo

Its a electronic handclap.. used in many drum machines etc. I have a lot of trouble finding the datasheets for these ICs (so your help is very welcome). Funny how I easily get lost in a Russian maze of electronics without finding anything.

К553УД2: http://www.kontest.ru/datasheet/unkn0wn/k553ud2.pdf
К561ЛА7: http://www.sdelai-sam.su/K561LA7.html
К176ИР10: https://eandc.ru/pdf/mikroskhema/k176ir10.pdf
FWIW, pinouts for those two CMOS logic ICs check out CD4xxx series. Eastern bloc clones.
This is the only one I could get for КР159НТ series: http://www.chipinfo.ru/dsheets/ic/159/nt1.html

[FUZZZZzzzz]

thank you once again. now i also have some websites for future reference. i know there are probably less synth then guitar enthusiasts on this forum, but who doesn't need a good hand clap machine

i will be bread boarding this weekend..

[FUZZZZzzzz]

The 4011 and the LM301 look about the same as their Russian brothers, but can someone look at the 4006 and its equivalent?

[Slowpoke101]

The 4006 will be fine. The main difference is that the 4006 has an delayed (1/2 clock cycle ) output latch on pin 2 that allows another 4006 to be cascaded to it when the clocking rate is very slow and is not a clean square wave-shape. The clone chip doesn't seem to support this capability. So use a 4006 and ignore pin 2 (which can be left floating - not connected ).

[Strategy]

I love a good handclap machine - was thinking about something to add to my drumset with a drum trigger to on the snare for when I want to go disco / lcd soundsystem...
Watching this thread in case you get a layout going!?

[ElectricDruid]

I love a good handclap machine

Yeah, me too. Can we get a non-Russian schematic together? I'd like to understand what that schematic actually does, and at the moment there's too much stuff that makes me go "eh?" for me to get a grip on it. I guess I should start by printing it out and writing the equivalent part numbers on it, since I don't seem to be able to hold them all in my head at the same time as reading a schematic...

I thought the handclap sounded good, nice and sharp and percussive, in a Roland x0x-era kind of way. How does the Rototom sound? I'm imagining the typical diving disco drum sound?

Thanks for your investigations, anyway. Love this off the beaten track stuff.

[PRR]

> I love a good handclap machine

https://youtu.be/1Twt1FxHKvc
https://youtu.be/sNwrEp9fxno

I *know* there was once a wind-up hand-clapper. I used to record student recitals, some VERY poorly attended, and felt a little added clapping might help. However I can't find it now.

[snk]

I am following this thread with interest
I like both russian designs, as well as drumsynths.

I love a good handclap machine

The clap module of the TAMA Techstar TS305 is very good. It can get you in the TR-909's clap ballpark very quickly, as well as sounding a bit like the mighty Claptrap.

By the way, for anyone interested into this kind of modules, I can recommend the Rakits :
https://www.rakits.co.uk/product/metal/
https://www.rakits.co.uk/product/drum-synth/

[Fancy Lime]

Hi,

very cool thing indeed. For diying something like that from the ground up (not repair): What would you guys use as a trigger? I have no experience with that sort of thing. Do you just put some kind of piezo (which kind?) between a pad of rubber and a hard place?

Out of curiosity: Is there a bassdrum version of these as well?

> I love a good handclap machine

https://youtu.be/1Twt1FxHKvc
https://youtu.be/sNwrEp9fxno

I *know* there was once a wind-up hand-clapper. I used to record student recitals, some VERY poorly attended, and felt a little added clapping might help. However I can't find it now.

That's the most Japanese thing I have ever seen. In a good way, no offense meant.

Cheers,
Andy

[KarenColumbo]

Funky!!!

[Strategy]

Ive built a 909 clap standalone (well, paired with 808 kick) but it is not set up to take drum trigger levels. The boss hc2 or amdek clap may have a schem floating around? Simmons Claptrap clobe woukd be phenomenal. I had one, sold it, a rare gear-offloading regret that i have.

[bluebunny]

The boss hc2 or amdek clap may have a schem floating around?

You can find the Amdek HCK-100 at electro-music.  I built one a lifetime ago.  It's in my attic.  Somewhere... 

[FUZZZZzzzz]

A lot of interest very cool!  This weekend I was busy restoring a microphone , so you'll have to forgive me for not having an update. I'm hoping to find some perfect match replacements without too much pinout troubles and try to make a working layout. I can take a picture of the trigger on the Rototom version I have, so we can also figure out what it is or if a 'normal' piezo trigger should work as well.

[FUZZZZzzzz]

So with the help of user diffeq I put together a possible NON RUSSIAN PARTS version of this.

[ElectricDruid]

Am I right in thinking that the top part of that is a LFSR noise generator, based on the 4006 18-stage shift register, with the NAND gates on the top-right doing the XOR function, and clocked by the two-NAND clock in the top-left?

That's my guess at first look, anyway. I'll have a look in more detail tomorrow (it's late here).

Tom