Use the photoelectric tube circuit, same as the tremolo of the old electronic tube amplifier. Good Built-in Adjust Device makes it easy to adjust the tone and vibration. True Bypass.
- (2011-05-16) Joyo Tremelo by cranbournemusic
- (2012-01-05) JOYO.JF-09 by Joyo
- (2013-01-04) Joyo JF-09 Tremolo Guitar Pedal by KDM Pedals
- (2013-01-29) JOYO JF-09 Tremolo Boutique Guitar Effect Pedal by musicexpresscanada
- (2013-09-02) Joyo JF-09 Tremolo, JF-33 Analog Delay & JF-32 Hot Plexi guitar effects pedal demo by GuitaristMag
- (2013-11-06) Joyo JF-09 Tremolo Pedal Review Demo by CheaperPedals
- (2014-02-10) Joyo Tremolo by northtownsound
- (2014-04-13) The Demeter Tremulator v. Joyo tremolo by 9520575
- (2014-08-06) Joyo JF 09 Tremolo Review by William Robertson
- (2014-11-03) Joyo Tremolo Pedal Demo by intheblues
- (2015-02-04) Joyo Quickies - Tremolo - Series 1 by EytschPi42
- (2016-05-27) JOYO Tremolo & Husky Drive Guitar Effect Pedals - 'The Dogs' by Joyo
- (2016-07-03) Joyo Tremolo Guitar Effects Pedal, Demo by JandW Music
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