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Electro-Harmonix Doctor Q Envelope Follower
Submitted on March 23, 2004 
Electro-Harmonix Doctor Q Envelope Follower for sale on eBay:
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Controls
- Range
- Controls the frequency range in which the filter moves.
- Bass Switch
- Lets low sounds through when it is down, and is especially useful when playing bass guitar or bottom string notes on lead guitar.
Various
Electro-Harmonix
The doctor is in! A reissue of the classic envelope funk box from the 1970's, the Doctor Q responds to your picking dynamics producing different wah-like effects. You know you've heard this one before. If you didn't come to dance, then you don't want the funk!
Most recent forum threads
No forum threads about this effect yet.
You can post questions, reviews, etc. in the main forum or data and pictures in the data dump forum.
Documentation
- ad (1976)
- diy project (Pisotones)
- manual
- manual (Electro-Harmonix)
- schematics
- schematics (Free Info Society)
- schematics available at Schematic Heaven
Related
- Electro-Harmonix Doctor Q Envelope Follower
- Electro-Harmonix Nano Doctor Q - Envelope Follower (Nano series)
- Giannini BEF1 Envelope Follower
- Ishibashi Triangle Env (Japanese copy?)
- Jack Orman's Dr. Quack (DIY project based on the Doctor Q)
- Electra 871 Envelope (made by EH)
- Home-Wrecker's Nurse Quacky (DIY project based on the Dr. Quack)
Link to this page
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EH-4100 electroharmonix ehx eh electro-harmonics electroharmonics doctorq doctor-q
Where to find one?
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EH-4100 electroharmonix ehx eh electro-harmonics electroharmonics doctorq doctor-q envelope-controlled envelope follower amplitude controlled fx pedal stompbox stomp box guitar effects pedal filter eq/excite/filter bandpass bp bpf band-pass filter diy
