Table of Contents
Advertisement
Quick Links
Signal Output
(To Amplifier)
Use these instructions to learn:
How to build a tube preamp pedal
The Persuader Deluxe utilizes a Darlington preamp to push cascaded triodes into distortion. Four dual triode
tubes included with the kit provide a wide range of tones from just a hint of break up from the JJ 5751 to over
the top crunchy distortion using the NOS 12AT7. A boost switch provides an additional layer of flexibility
with added gain and a little extra bottom end. An LED indicator lights up when the Persuader Deluxe is
engaged and not in true bypass mode.
Warning: This circuit was designed for use with a 9 VDC power supply only.
THE PERSUADER DELUXE (K-980)
BOOST
1
Copyright © 2014 by modkitsdiy.com
Unplug when not in use
to save battery life.
Signal Input
(From Guitar)
9 VDC
CENTER (-)
ADAPTER
Advertisement
Table of Contents
Related Manuals for Mod PERSUADER DELUXE
Summary of Contents for Mod PERSUADER DELUXE
- Page 1 NOS 12AT7. A boost switch provides an additional layer of flexibility with added gain and a little extra bottom end. An LED indicator lights up when the Persuader Deluxe is engaged and not in true bypass mode.
-
Page 2: Table Of Contents
TABLE OF CONTENTS TOOL LIST ………………………………………………………………………………………...2 PARTS LIST DRAWINGS………………………………………………………………………….3, 4 FINAL ASSEMBLY REFERENCE DRAWING……………………………………………………5 SOLDERING TIPS ………………………………………………………………………………..6 STEP BY STEP ASSEMBLY INSTRUCTIONS ………………………………………………..7 Section 1 – Mount ¼” Jacks and Terminal Strip Components...……………………………..7 Section 2 – Mount the Potentiometers, Footswitch, LED and DC Power Jack………………8 Section 3 –... -
Page 3: Parts List Drawings
PARTS LIST 1 Stranded Wire (22 AWG) - White 3PDT Foot Switch K-PUL1569-WHITE (4 FT) P-H501 Enclosure P-H1590BBCE-BK Preamp Tubes (Dual Triode) BOTTOM VIEW OF BASE PIN ORIENTATION T-12AT7_ECC81 T-12AU7-JJ T-12AX7B-CHINA T-5751-JJ Mini Chicken Head Knob P-K900R Potentiometers: 250KA and 1KL R-VA250KA R-VA1KL Battery Clip... - Page 4 PARTS LIST 2 #4 Screws (3/8" long) Light Emitting Diode Toggle Switch, Mini (SPDT) S-HS440-12 P-L400 P-H540 #4 Nuts S-HHN440 220 Ω Resistor ½ W 220kΩ Resistor ½ W R-A220 R-A220K 220K #4 Lock Washers S-HLW4 brown yellow gold gold DC Power Jack S-H750 4.7kΩ...
-
Page 5: Final Assembly Reference Drawing
FINAL ASSEMBLY REFERENCE DRAWING This is a large version of the final assembly drawing. Refer to this drawing as you make your way through each step of the instructions. Before you make a new connection at a particular terminal or solder lug, notice how many other connections will be made at that terminal. That way you can decide whether it’s best for you to solder the connection and leave space open for future connections or hold off on soldering until after every connection at that location has been made. -
Page 6: Soldering Tips
SOLDERING TIPS It is important to make a good solder joint at each connection point. A cold solder joint is a connection that may look connected but is actually disconnected or intermittently connected. (A cold solder joint can keep your project from working.) Follow these tips to make a good solder joint. -
Page 7: Step By Step Assembly Instructions
SECTION 1 – Mount ¼” Jacks and Terminal Strip Componets Please refer to DRAWING 1 and DRAWING 2. Orient box with two 5/16" holes on top and ½” hole nearest you. Input Jack RING LUG Mount input jack in 3/8" hole on left side of box with hardware provided. Washer goes under nut on outside of box. -
Page 8: Section 2 - Mount The Potentiometers, Footswitch, Led And Dc Power Jack
2) Mount two of the .1µF capacitors. Terminals #2 & 5: Mount one .1µF cap to terminals #2 and #5 with the cap upside down and its leads facing up. This will allow room for the next component to be mounted in the same area. (Make sure the leads of the cap do not come into contact with any terminals besides terminals #2 and #5). -
Page 9: Section 3 - Mount The Tube Socket, Shield And 5 Lug Terminal Strips & Toggle Switch
SECTION 3 – Mount the Tube Socket, Shield, 5 Lug Terminal Strips & Toggle Switch Please refer to DRAWING 3. Use the #4 screws, lock washers and nuts to mount the tube socket and shield as shown below. 1) From outside of the enclosure, insert the two #4 screws through the mounting holes of the tube shield base and into the two 1/8"... -
Page 10: Section 4 - Connect The Dc Power Components
SECTION 4 – Connect the DC Power Components Power Adapter Jack Please refer to DRAWING 3. POSITIVE LUG Locate the battery snap connector. Connect POSITIVE-SWITCH LUG and solder the red lead to the positive-switch CENTER-PIN LUG lug of the power adapter jack. Connect and solder the black lead to ring lug on the input jack. -
Page 11: Section 6 - Mounting Components In The Vacuum Tube Section
6) Strip and tin a 1" piece of wire and connect: Toggle switch lug 1 to Terminal #10 7) Strip and tin a 1 ½” piece of wire and connect: Toggle switch lug 2 to Terminal #11 8) Strip and tin a 1 ½” piece of wire and connect: 1KL pot lug 3 to Terminal #13 9) Strip and tin a 2 ½”... -
Page 12: Section 7 - Wire The Output Jack And Footswitch Connections
9) Connect the remaining .1µF cap to: 250KA Pot lug 1 & Terminal #15 SECTION 7 – Wire the Output Jack and Footswitch Connections Please refer to DRAWING 6. Footswitch lug numbering convention 1) Locate the unattached end of the .1µF cap (from Section1) and connect to: Footswitch lug 1 -Don’t solder the footswitch connection, yet. -
Page 13: Suggested Tube Uses
NOS 12AT7: Often relagated to the role of phase inverter or reverb driver, the 12AT7 really shines in the Persuader Deluxe. At minimum gain settings, it will provide a clean boost just this side of overdrive, and with a gain factor of 6, launches into aggressive distortion at maximum gain. - Page 14 DRAWING 2 .1µ 220K 4.7K DRAWING 3 250K .1µ 220K 4.7K BLACK...
- Page 15 DRAWING 4 Terminal Numbering Convention 250KA 250K .1µ 220K 4.7K...
- Page 16 DRAWING 5 250K .1µ 220K 4.7K DRAWING 6 250K .1µ 220K 4.7K...
- Page 17 Use this troubleshooting supplement to help: Measure DC voltage test points to identify major discrepancies and locate problem areas. (Keep in mind that the voltage measurements will vary slightly from kit to kit. The voltages you measure should be in the same ballpark, but do not expect to get the exact same value.) Test Point Location Description...
- Page 18 DC Voltage Test Points Guitar cable must be 250K plugged into the input jack while taking voltage measurements GROUND MPSA13 .1µ 220K 4.7K...
- Page 19 Guitar cable must be 250K plugged into the input jack while taking voltage measurements GROUND MPSA13 .1µ 220K 4.7K AC Voltage (Signal) Test Points Connect your guitar to the input jack and take AC voltage measurements at each test point with both controls turned all the way up.
- Page 20 Plate1 Footswitch Heater2 NPN Darlington Transistor Grid1 Cathode2 Grid2 Cathode1 Plate2 Heater CT Bypass Effect On V1 (12AT7) BASING DIAGRAM The solid lines represent electrical continuity www.modkitsdiy.com between footswitch terminals. Copyright © 2013 by modkitsdiy.com “The Persuader Deluxe” (K-980) Schematic...