Synth shops in tokyo

Echigoya Music
Japan, 〒150-0041 Tokyo, Shibuya City, Jinnan, 1 Ch
Shibuya, Tokyo, Japan
http://www.echigoyamusic.com/index.html

Mostly 2nd hand stuff.

Tiny shop on 9th floor.

Opposite Tower records

Hours:

Monday ‑ Sunday  11:00 AM ‑ 8:00 PM

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Otaku Tokyo
Shibuyaku, Japan
Wakabanisi Bld.6F, 1-10-10, Ebisunishi
Shibuya-ku, Tokyo, 150-0021, Japan

You need to email these guys 1st, if you wish to visit the store
treasure@otakutokyo.com

Reverb address
https://reverb.com/au/shop/otaku-tokyo?locale=en-AU

Instagram
https://www.instagram.com/otakutokyo_japan/?hl=ja 

Facebook
https://www.facebook.com/otaku.tokyo.jp/?fref=ts

Shop website:
https://otakutokyo.com/

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Five G - Music technology
http://fiveg.net/

Location

Shibuya-ku, Tōkyō-to 150-0001

Japan, 〒150-0001 Tokyo, Shibuya City, Jingumae, 1 Chome−14−2 原宿ル・ポンテ 4F

Hours:

Monday ‑ Sunday 12:00 AM ‑ 8:00 PM

Monday ‑ Friday   3:00 PM ‑ 8:00 PM

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Ishibashi Music
Ishibashi Music Shibuya
150-0042 2F Shibuya-BEAM Bldg. 31-2, 31 Udagawa

Hours:

Monday ‑ Sunday

11:30 AM ‑ 8:30 PM

Website
https://www.ishibashi.co.jp/eng/


Google maps
https://goo.gl/maps/drdTRGv6tn1e9tZF9

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Hard off
Its part of a department store chain
Japan, 〒180-0002 Tokyo, Musashino, Kichijoji Higashic

Hours:

Monday ‑ Sunday  10:00 AM ‑ 9:00 PM

Monday ‑ Friday    11:00 AM ‑ 9:00 PM

 (This doesn't make any sense I know, it's what is written on the website)

Website
https://www.hardoff.co.jp/shop/kanto/tokyo/hardoff/101079/ 

Map:


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Akihabara Electric Town

Radio Centre    

Japan, 〒101-0021 Tokyo, Chiyoda City,

Sotokanda, 1 Chome

Akihabara ( Akiba)
10, Tōkyō-to 101-0021

 Japan Guide

Look for the electronics shops (one man operations to department stores)
Larger stores: Sofmap and Laox

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Recycling Garden Yoyogi shop

3 Chome-38-10 Yoyogi, Shibuya City, Tokyo 151-0053, J

recycle-garden.net 

English site:  http://recycle-garden.net/english 

Hours: Monday - Sunday, 10am - 8pm

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Ikebe Gakki Kenbando

  https://www.ikebe-gakki.com/realshop/kenbando/ 

Kenban-do ̄ , the Japanese name of the store, means "The Hall of Keyboard Instruments"

Hours:
Open seven days,
11am - 8pm

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BIC Camera
4 Chome-1-1 Sotokanda, Chiyoda City, Tokyo 101-0021, Japan

Website
https://www.biccamera.com/bc/i/shop/shoplist/shop121.jsp

Hours:

Monday ‑ Sunday

10:00 AM ‑ 9:00 PM

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Links
+ Jonos synthesizer shopping in Tokyo 2016

*Japan
   - Synthesizer shopping in Tokyo
   - Bonsai - Narita
   - Tokyo Akihabara Radio Center
   - Kinkakuji (Golden Pavilion) - Kyoto
   - Kyoto station
   - Nara
   - Pachinko - Hiroshima
   - Umeda Sky Building - Osaka
   - Osaka Castle

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For more travel postcards click here:

http://djjondent.blogspot.com.au/2015/03/travel-postcards-index-my-travel.html

Yamaha TX81z

Some pics of this Yamaha Tone Generator.

Though its only 4 operators , it sounds great.

Maybe a new classic??
It can be configured to act as 8 independent instruments.  .... each controlled on a different midi channel.

It's a 1-unit rackmount module ...basically a key-less version of the DX-11.
The sounds are similar to the DX-21 and DX-27. 

 The TX81Z has 5 banks of 32 voices. Banks A-D contain factory preset voices.
Use the PARAMETER keys to select banks I, A, B, C, D. Use the DATA ENTRY keys to select voices 1-32 in each bank.

 

...jUST 8 algorithms 

 A pull-out card lists the main operations of the TX81Z.

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You can edit your own voices... In single mode , press the edit-compare button.

 Use the PARAMETER keys to move through the parameters, Use the DATA ENTRY keys to change the datavalue. When the LCD shows several parameters at once, use the CURSOR keys to move the blinking cursor to the parameter you want to set.

..

While editing a voice, you can compare it with the original voice. Press EDIT/COMPARE. The LED will begin blinking, and the LCD will show a “c” in theupper left corner, indicating “Compare”.Use the PARAMETER keys to lookthrough the parameters. 

This editor looks good

https://detunes.gumroad.com/l/tx81z-editor

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FM Index
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Wasp filter Vintage and AE modular

I'm just getting into the AE modular.
The lovely small format is esp useful for live performance.
I can carry a whole modular in a small suitcase.
And its battery powered.

A friend asked me to do a video comparing WASP filters.
I hope this helps the community.

The Tangible Waves / Abused Electronics modular
https://www.tangiblewaves.com/

The WASP filter is based around a simple CMOS chip.
The 4069.... its an inverter.
If you're going to build one the CMOS ic has to be unbuffered  ... use CD4069UB
The original vintage circuit also uses the CA3080 ... a OTA...Operational Transconductance Amplifier

The AE modular wasp inspired filter uses vactrols for controlling the filter frequency.​

Links
+ Elby/kenstone
+ https://www.tangiblewaves.com/

Jasper-Wasp build pics - part 1

Jasper Build notes. I'm building this for a friend.
These aren't official notes and I'm not a professional Synth Technician..
Just my personal thoughts to help me trouble shoot if I encounter any probs.

The official website where you can buy a kit is here:
jaspersynth.co.uk

There are lots and lots of CMOS ICs. This is almost a Lunetta synth. Here is my page on CMOS &  Lunetta synths

Anyway, the integrated circuits used in this build are mostly CMOS (with a smattering of the occasional op-amp). I've got a few old vintage WASPs and I love how they sound .esp considering the simple components.

This is the main Jasper PCB. The keyboard is attached.
I like how the colour of the keys is reversed.

 iT should be a fun build. This is a rev 2.2 , July 2017 PCB.

Here is a list of the ICs used.

LM386 or NJM386D

555

CMOS 555 like TLC555CP recommended

LM3900

CD4006 - shift register

CD4013 - dual flip flop

CD4016 -- analog bilateral switch

CD4019

CD4024 - shift register

CD4028

CD4040-- counter .. binary,ripple

CD4046 .. PLL phased locked loop... probably the VCO

CD4052 .... multiplexer.. dual 4 channel

CD4069UBE... its an inverter ... I think this is part of the wasp filter ???

CD4070... XOR gate

CD4071....quad two input OR gate

CD4081... quad 2 input AND gate

CD4503

LM13700

CD40103

CD40174

There are many ways to build this but I like to put the IC sockets on first.

Then caps, resistors, etc. All the simple non polarized stuff.

* R9 and R15 may need changing to adjust master oscillator tuning (4K7 on original).

** R56, R99, R163, R171 changed to 68K to adjust level of pulse/square when using osc vol pots. (150K on original)

For the moment, I'm using what's in the BOM.
R9 & R15 = 3K9
R56, R99, R163, R171 = 68K

Electro caps are polarized. Insert thus: Long lead in square hole.

The link port cable on the underside of the main board.

 The switched pots.

Fix everything into place then solder.

The rotary switches. You need 6 of these.
These are 2 pole, single level.

two alternatives
LorinCK1060
Alpha SR2612F

I went with the Lorin... more expensive.

 You need to cut the shaft to the right length.

You can set the number of positions with the key washer:
In the pic below, it's set to 4.

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The original vintage circuit also uses the CA3080 ... a OTA...Operational Transconductance Amplifier instead of your standard Op-amp
An OP-AMP is a Voltage to Voltage amplifier.
The OTA is like a op-amp but the output is a current source instead of a voltage source.
Also the OTA has 3 inputs (unlike a op-amp with 2) . The 3rd input sets the gain with a current.

To be continued................. Part 2 of this build is here:
https://djjondent.blogspot.com/2020/02/jasper-build-notes-part-2.html

Links:
+ Jaspersynth
+ BOM
+ Build notes
+ DSL man.de
+ Knobs
+ Elby Knobs
+ Muffs 
+ Muffs - 1 
+ Muffs - Build thread 
+ Buying Jasper
+  Mouser cart