Log In CartCart

Roland GR-77B

Released in 1986

The GR-77B is a bass guitar synthesizer that holds 64 programs.

Synth
All photos are copyrighted by Syntaur, and may not be used without permission.

We stock both NEW and USED parts; all used electronic parts are tested and guaranteed working.

This listing reflects our current inventory and is updated in real time. If a part is shown as Out of Stock, we typically don't know when or if we might have it again - but click on the part for more info, and then you will be able to sign up for an alert when we do have it available again. By including out of stock parts in our listings, we hope to offer customers a more complete and useful resource.

We cannot diagnose repair issues by phone or email. For technical questions, we suggest posting on our Forums, where our techs - as well as other users - can offer help.

Filter
Category
All
Batteries
Books/Manuals
Cables
Circuit boards
Displays
Electronic Components
Hardware
Jacks & Connectors
Keybed Parts
Keys
Knobs & Buttons
Music Rests
Other
Panel controls
Pedals
Power Adapters
Sounds
Speakers
Transformers
AC power socket, 2-blade
AC power socket, 2-blade
$15.95 (Part #4415)
Click for details
Battery, 3V Lithium
Battery, 3V Lithium
$8.95 (Part #2259)
Click for details
IC, 4011 quad gate
IC, 4011 quad gate
$2.95 (Part #3391)
Click for details
IC, 4028 decoder
IC, 4028 decoder
$2.95 (Part #1945)
Click for details
IC, 4051 multiplexer chip
IC, 4051 multiplexer chip
$2.95 (Part #4319)
Click for details
IC, 4052 multiplexer switch
IC, 4052 multiplexer switch
$2.95 (Part #7739)
Click for details
IC, 4066 quad bilateral switch
IC, 4066 quad bilateral switch
$2.95 (Part #3723)
Click for details
IC, 74LS00N quad gate
IC, 74LS00N quad gate
$2.95 (Part #3429)
Click for details
IC, 74LS04 hex inverter
IC, 74LS04 hex inverter
$2.95 (Part #3147)
Click for details
IC, 74LS138 decoder/demultiplexer
IC, 74LS138 decoder/demultiplexer
$3.95 (Part #3251)
Click for details
IC, 74LS174 flip-flop
IC, 74LS174 flip-flop
$3.95 (Part #3149)
Click for details
IC, 74LS27 triple NOR gate
IC, 74LS27 triple NOR gate
$2.95 (Part #11504)
Click for details
IC, 74LS273 flip-flop
IC, 74LS273 flip-flop
$2.95 (Part #4214)
Click for details
IC, 74LS32N quad gate
IC, 74LS32N quad gate
$2.95 (Part #4262)
Click for details
IC, 74LS367 buffer/line driver
IC, 74LS367 buffer/line driver
$3.95 (Part #4224)
Click for details
IC, 74LS393 dual binary counter
IC, 74LS393 dual binary counter
$3.95 (Part #5225)
Click for details
IC, 74LS74 dual flip-flop
IC, 74LS74 dual flip-flop
$2.95 (Part #3396)
Click for details
IC, HM6116ASP-12 or MB8416A SRAM chip
IC, HM6116ASP-12 or MB8416A SRAM chip
$7.95 (Part #7115)
Click for details
IC, IR3R05 VCA/VCF chip
IC, IR3R05 VCA/VCF chip
$54.95 (Part #5115)
Click for details
IC, M5218L or M5218AL op amp
IC, M5218L or M5218AL op amp
$4.95 (Part #8177)
Click for details
IC, MM5437N noise generator
IC, MM5437N noise generator
$9.95 (Part #1600)
Click for details
IC, MN3009 BBD
IC, MN3009 BBD
$17.95 (Part #1663)
Click for details
IC, MN3101 BBD clock driver
IC, MN3101 BBD clock driver
$9.95 (Part #5084)
Click for details
IC, TC40H000P quad NAND gate
IC, TC40H000P quad NAND gate
$8.95 (Part #3398)
Click for details
IC, TL064 quad op amp
IC, TL064 quad op amp
$2.95 (Part #2582)
Click for details
Memory cartridge, Roland M-64C
Memory cartridge, Roland M-64C
$99.95 (Part #M64C)
Click for details
MIDI jack, female
MIDI jack, female
For MIDI Out
$9.95 (Part #5325)
Click for details
Phone jack, 1/4-inch, 3-pin PCB mount
Phone jack, 1/4-inch, 3-pin PCB mount
For all rear panel jacks
$9.95 (Part #4334)
Click for details
Power cord, 2-blade
Power cord, 2-blade
$15.95 (Part #PCJ)
Click for details
Pushbutton tact switch, 7.3mm, 4-pin
Pushbutton tact switch, 7.3mm, 4-pin
$2.95 (Part #4377)
Click for details
Pushbutton tact switches, set of 10
Pushbutton tact switches, set of 10
$21.95 (Part #4377X)
Click for details
Slide switch, 3-position
Slide switch, 3-position
For Protect, Level
$14.95 (Part #1436)
Click for details
Transistor, 2SA798
Transistor, 2SA798
$12.95 (Part #8257)
Click for details
Transistor, 2SB507 or NTE153 or 2SB1015
Transistor, 2SB507 or NTE153 or 2SB1015
$3.95 (Part #2577)
Click for details
Transistor, 2SC1583
Transistor, 2SC1583
$12.95 (Part #5372)
Click for details
Transistor, 2SD880
Transistor, 2SD880
$2.95 (Part #2955)
Click for details
Transistor, 2SK30A-O
Transistor, 2SK30A-O
$7.95 (Part #2605)
Click for details