Dan Armstrong Orange Squeezer ! This is my twist on the Orange Squeezer compressor. Fortunately I'm good on both. Either name would be accurate, the trimmer adjusts compression by biasing the JFET. The signal chain is discrete FET and the control signal is generated from a ZETEX ZXCT1041 current sensor - used for battery chargers. All of the mods came from a discussion at DIY Stompboxes.The original objective was to optimize the circuit for bass guitar by replacing the half-wave rectifier with a full-wave rectifier, among other mods as noted on the schematic. The Dan Armstrong Orange Squeezer (OS) is legendary for its smooth compression and "squashing" tone as used on many Steely Dan (My Old School by Jeff Baxter etc), Doobie Brothers, Dire Straits (Sultans Of Swing), and other classic albums. check the schematic R1 is 4M7 (not 4K7).. typing error i suppose. Unlike the Orange Squeezer you can adjust level and compression – it has all sorts of potential for mods. Required fields are marked *, You may use these HTML tags and attributes:
. Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. Otherwise, we recommend you ignore this PCB mask and buy the Ready to Solder Printed Circuit Board or Complete Kit. Further Simplification of the Enhanced Orange Squeezer Compressor September 28, 2012 March 22, 2013 raycharlesring Audio Electronics , Compressors It occurred to me that if one is willing to sacrifice some flexibility in the decay length of my compressor design; that it can be simplified by removing the source follower and the Zetex current sensor. Oh my, I really like this compressor. Amplify those softer notes to make it sound as louder as high notes with the Orange Squeezer Compressor. What happens is that the feedback subtracts from the input at the optofet drain node greatly reducing the VDS across the voltage controlled resistor – while still providing gain. This is my twist on the Orange Squeezer compressor. Unlike the Orange Squeezer you can adjust level and compression – … Orange Squeezer Dan Armstrong’s simple but effective compressor ... Alterations have been made to the output stage of the op amp circuit to increase volume as the original was a bit lacking. The gain of the stage with this feedback is now about 4. Demo of the DIY Hand wired Orange Squeezer Compressor pedal. I don’t like the snap on the front edge of the notes. BOM R1 4M7 Jazz Guitar Chords Music Guitar Guitar Effects Pedals Guitar Pedals Esp8266 Arduino Diy Guitar Pedal Making Musical Instruments Boss Audio Cigar Box Guitar. I use an h11M1F optofet instead of a JFET as a current controlled resistor (not voltage controlled). Dan Armstrong Orange Squeezer The Dan Armstrong Orange Squeezer compressor has become a staple among the DIY community. Change ), https://circuitsaladdotcom.files.wordpress.com/2012/09/fet-compressor.gif, https://circuitsaladdotcom.files.wordpress.com/2012/09/img_4862.jpg, https://circuitsaladdotcom.files.wordpress.com/2012/09/compressor-blues.mp3, How to Significantly Improve a Simple PT2399 Delay Circuit. The ZXCT1041 can be replace by an opamp such as the one I use for the peak detector, configured as a precision full wave diode(see op amp data sheet) – not much difference either way. The Opto FET I am using appears to have distortion that looks like crossover distortion with signals greater than 200mV. I am going to explore just using a linearized JFET in its place and or other solutions. All of the mods came from a discussion at DIY Stompboxes. Basically the original Dan Armstrong Orange Squeezer compressor. Reviews are mixed. This is a schematic for a modified version of the Dan Armstrong Orange Squeezer compressor. Some feel that the stock version of the Orange Squeezer is as good as it gets. It is configured to act as a full wave precision rectifier. I have noticed that at very low compression settings with high guitar input levels(>.5Volts) there can be some distortion. The sturdy, attractive aluminum construction of this Dan Armstrong guitar pedal makes it … Create a free website or blog at WordPress.com. Fender 1966 Deluxe Reverb Discovered and Restored! LL FX Orange Comp (Dan Armstrong Orange Squeezer compressor) It is configured to act as a full wave precision rectifier. This layout has the level control offboard, but the bias is a 10k trimpot, but could easily be wired offboard as well. Jay Graydon emailed me and told me that he played the solo in PEG by Steely Dan with the orange squeezer. ( Log Out / By applying shunt shunt feedback from the Drain to the Gate of the first JFET stage of my compressor, I reduce VDS across the optofet by a factor of 5! This is a ready-to-rock Dan Armstrong™ Orange Squeezer™ Replica Stompbox. Change ), You are commenting using your Facebook account. Original Dan Armstrong™ Orange Squeezer™ Schematic (for Reference). This is a schematic for a modified version of the Dan Armstrong Orange Squeezer compressor. Modified Dan Armstrong Orange Squeezer Compressor circuit. Orange Squeezer Ready-For-Transfer Printed Circuit Board Layout For use only if you are a complete DIY person who wants to etch and drill your own PCB. Anyway, here’s the schematic (click for bigger). All of the mods came from a discussion at DIY Stompboxes. The signal chain is discrete FET and the control signal is generated from a ZETEX ZXCT1041 current sensor – used for battery chargers. Not quite as squashy as I expected but I really, really like the tone. It is configured to act as a full wave precision rectifier. Now the source must be bypassed with a 10uF cap – where before it was optional. From the Dan Armstrong marketing info: The Orange Squeezer compresses the dynamics of the music or of the individual notes without adversely affecting the attack of the note and without adding any significant noise or distortion to the signal. Now it performs beautifully. The signal chain is discrete FET and the control signal is generated from a ZETEX ZXCT1041 current sensor – used for battery chargers. Your email address will not be published. This is a schematic for a modified version of the Dan Armstrong Orange Squeezer compressor. The original objective was to optimize the circuit for bass guitar by replacing the half-wave rectifier with a full-wave rectifier, among other mods as noted on the schematic. Same compressor circuit used on Sultans of Swing, Peg and many more.
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