The TG77 is a hybrid synthesizer that combines 6-operator FM and AWM2 synthesis for some very expansive sound creation capabilities. Yamaha refers to the FM synthesis as AFM, meaning Advanced Frequency Modulation. The "advanced" part comes from the availability of extra oscillator waveforms - 16 in all, with 45 different algorithms available. Each of the two engines is 16-note polyphonic, allowing for up to 32 notes of polyphony depending on how sounds are structured.
The TG77 is a rackmount version of the Yamaha SY77. It lacks a sequencer, but is otherwise nearly identical. The Yamaha TG55 is an AFM-only rackmount tone generator from around the same time and uses the same button style.
It has PCM waveform and data card slots, and expansion cards typically come in pairs. View the available expansion cards.
The display back light commonly burns out on these units. It can be replaced, and the screen is usable without it, but it is harder to read without a working backlight.
Yamaha LSI Chips used in the TG-77:
YM3029 (x3) - DAC. (Four channels per DAC).
YM7102 (x2)
YM7103 (x2)
YM7107 (x2)
YM7119 (x2)
Year Released: 1990
MSRP: 1995.00 USD
Polyphony: 32 notes
Multitimbral: 16 parts
Preset Patches: 128
User Patches: 64
Preset Performances: 16
User Performances: 16
ROM: 4MB (112 waveforms)
Effects: 2 digital effects processors
Screen: 240 x 64 pixel backlit LCD
Outputs: 12 x 1/4 inch (2x stereo pair, 8x individual)
Power Consumption: 28 watts
Dimensions: 490 mm x 390 mm x 132 mm
Weight: 8 kg
This is a 3-space rack unit.
WAV samples are available on freewavesamples.com.
YAMAHA TG77 with Blue Display ($597.62)
[UPGRADED] Yamaha TG77 Tone Generator - 1990 ($1,000)
Yamaha SY77 / TG77 voice ROM card JSPA vol. 1 BOXED complete ($244.24)
Yamaha SY 77 TG77 SAX1 cards for sale ($184.54)
OEM Display - Yamaha TG77 / SY77 ($39)
Yamaha SY77 TG77 R&D Tokyo PCM Data Rom Card For Yamaha SY77 and Yamaha TG77 1990 ($124.99)
Yamaha SY77 TG77 Drums 1 Sound Card Set Rom For Yamaha SY77 and Yamaha TG77 1990 ($149.99)
Yamaha SY77 TG77 Shofuku Act 2 PCM Data Rom Card For Yamaha SY77 and Yamaha TG77 1990 ($124.99)
Yamaha SY77 / TG77 Voice Data Card "R&D Tokyo Selection Vol. 1" 1990 - Black / Yellow ($125)
Yamaha RY30 / RM50 / SY77 / SY85 / SY99 / TG500 / TG77 RSC3004 Waveform ROM card Dance & Soul ($157.40)
Yamaha SY/TG77 brass section sound card set ($139)
LCD Display weiß mit Kabel für Yamaha TG77 ($86.20)
LCD Display for Yamaha TG77 yellow with cable Kit ($84.38)
Yamaha TG77 neues LCD Display Blau mit Kabel ($86.20)
Yamaha TG77 new LCD Display black with cable Kit ($84.38)
Graphic Display Upgrade - Yamaha TG-77 SY-77 SY-99 Kurzweil K2000 K2000R K2000VX ($170.34)
Yamaha SY 77 / TG 77 Synth Patches • 13 Bank Set • Digital Download ($35)
Yamaha SY77/TG77 Sax 1 Card Set ($110.30)
YAMAHA TG/SY77 DRUMS 1 WAVEFORM + VOICE DATA CARD W7702 D7702-01 ($150)
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