Hagerman DISTORT User manual

DISTORT
Transistor Distortion Pedal
Made in USA

DISTORT – Transistor Distortion Pedal
2
Copyrights & Trademarks
 Copyright Hagerman Amplification 2020. All rights reserved. No part of this document
may be photocopied reproduced or translated to another language without prior
written consent.
Disclaimer
The information contained in this document is subject to change without notice.
Hagerman Amplification shall not be liable for errors contained herein or for
consequential damages in connection with the furnishing performance or use of this
material.
Warranty
Hagerman Amplification warrants this product free of defects in materials and
workmanship for a period of 10 years (90 days tubes and footswitch). If you discover a
defect Hagerman Amplification will at its option repair or replace the product at no
charge to you provided you return it during the warranty period transportation charges
prepaid to Hagerman Amplification. This warranty does not apply if the product has
been damaged by negligence accident abuse or misuse or misapplication has been
damaged because it has been improperly connected to other equipment or has been
modified without the express written permission of Hagerman Amplification. This
warranty is limited to the replacement or repair of this product and not to damage to
equipment of other manufacturers. Any applicable implied warranties including
warranty of merchantability are limited in duration to a period of the express warranty
as provided herein beginning with the original date of purchase and no warranties
whether express or implied shall apply to the product thereafter. Under no
circumstances shall Hagerman Amplification be liable for any loss direct indirect
incidental special or consequential damage arising out of or in connection with the use
of this product.
Hagerman Amplification
PO Box 61911
Honolulu HI 96839
808-383-2704
www.hagamps.com

DISTORT – Transistor Distortion Pedal
3
Description
DISTORT is a completely new 4-transistor overdrive circuit. It does not employ diodes or
transistor saturation to produce clipping but rather transistor cutoff. Based on my 1995
"gamma" patent it uses a differential pair at its core supported by a pre-gain buffer and
DC servo. Clipping is clean and smooth almost tube-like. By turning down input DRIVE
you can use it as a high-gain clean boost.
Specifications
Item Specification
Bypass True
Gain 20dB
Controls Level Drive
Size 5.4” x 2.4” x 2.1”
Input Power 9V to 15V @ 1mA

Q2
2N3904
C3 100nF
C5 10uF
J1
J2
Q3
+9V
Q4 2N3906
R4 100kB
R6 470k
R11 10k
R13 10k
R15 47k
R10 10k
R5 100k
R14 10k
C1 100uF
R16 100kB
Q1 2N3906
R7 10k R8 47k
R9 10k
R2 1k
C6 100nF
R1 10k D1 LED
R12 2k2
C4 1nF
S1C2
100pF
R3 10k
R17 10k
LEVEL
DRIVE
50-10kHz +20dB
20mV
1mA 9V - 15V