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Dual-Tone Tremolo

17W 1x12 tremolo combo (1964-68).

Catalogue code
DUAL-TONE TREMOLO (S6424/S6524)
Years
1964–1968
Type
combo
Valves & speakers
17W, 1-12 in. Jensen speaker, 3 x 12AX7, 2 x 6973, 1 x 5Y3
Lifecycle
retired
Confidence
Medium
Watts
17
Speakers
1-12 in. Jensen speaker
Tubes
3 x 12AX7, 2 x 6973, 1 x 5Y3
Channels
2
How this model is dated
01 / Witnesses

What applies here

Marks that can be entered for this maker: Serial number (plate), Transformer code, Chassis stamp.

02 / Bounds

The model year is a floor

Nothing predates 1964; components only push the date later.

03 / Value

What moves the price

Sold-price aggregates are not collected yet, so the archive gives no figure — condition, originality of the transformers and a documented recap move this model more than any list price.

Related models
Bantam1960 · combo · Supro S-seriesSuper Six1960 · combo · Supro S-seriesSupreme1964–1968 · combo · Supro S-seriesCombo Tremolo1964–1968 · combo · Supro S-seriesVibra-Verb1965–1966 · combo · Supro S-seriesRoyal Reverb1964–1966 · combo · Supro S-series

Evidence: Blue Book of Guitar Values — supro