Pedal Parts / DIY

The LEHLE MODULE SW is a true bypass switching unit with relay and an active pop suppression function controlled by an intelligent microcontroller circuit, thereby allowing the LEHLE MODULE SW to switch even faster than mechanical switches, noise-free and without wear.

Locking terminal lugs, #6 or #8 hole, 5/8" length, angled. Package of 10

The CD40106B device consists of six Schmitt-Trigger inputs. Each circuit functions as an inverter with Schmitt-Trigger input. The trigger switches at different points for positive- and negative-going signals. The difference between the positive-going voltage (VP) and the negative-going voltages (VN) is defined as hysteresis voltage (VH). Features:

• Schmitt-Trigger Inputs
• Hysteresis Voltage (Typical):
  
  • 0.9 V at VDD = 5 V
  • 2.3 V at VDD = 10 V
  • 3.5 V at VDD = 15 V
• Noise Immunity Greater Than 50%
• No Limit On Input Rise and Fall Times
• Standardized, Symmetrical Output Characteristics
• For Quiescent Current at 20 V
• Maximum Input Current Of 1 µA at 18 V Over Full Package Temperature Range: 100 nA at 18 V and 25°C
• Low VDD and VSS Current During Slow Input Ramp
• 5-V, 10-V, and 15-V Parametric Ratings

Audio taper Alpha 16mm pots with a solid shaft and long PCB mount terminals. The smaller size is useful for builds with limited panel space such as guitar pedals, synthesizer modules, and adding modifications to equipment. Washer and nut included.

• Threading: M7 x 0.75
• Distance between terminals: 5 mm (0.197”)
• Lead Depth from Panel: 20.7 mm + 4 mm (0.815” + 0.158”)
• Lead Distance from shaft center: 14.3 mm (0.563”)
• Lead Thickness: 0.5 mm (0.020”)
• Shaft Diameter: 6.35 mm (0.25”)

The P-K801-BRASS is a custom built Davies 1900H clone. This knob features a brass insert in addition to a thick plastic build resulting in the most solid version of this knob available. The thick plastic eliminates the unfortunate hairline fractures that can commonly be found near the set screw of other versions. The P-K801-BRASS has an infilled painted indicator and fits ¼” (6.35mm) pot shafts.

R/A stereo jack. Replacement for Fender amps 1999-present. Similar to Fender part: 005-3450-000

Carling mini-toggle switch, DPDT, ideal for phase switching, coil-tapping, series/parallel pickup switching in guitars.

• 0.354" bushing length
• ¼" mounting hole diameter
• Double pole/Double throw (DPDT)
• On-On

New old stock 2N3565 transistors manufactured by Micro Electronics. The 2N3565 is a silicon NPN transistor in a TO-106 case. The 2N3565 is primarily intended for general purpose and low level applications. 2N3565 transistors were used in the original Harmonic Percolator, Foxx Tone Machine and the Sam Ash Fuzzz Boxx.

The 2N1711 is a silicon planar epitaxial NPN transistor in a TO-39 metal case. It is intended for use in high performance amplifiers, oscillators and switching circuits. The 2N1711 is a great choice for amplifiers where low noise is an important factor.

Extra long diecast aluminum chassis commonly used for looper/loop-switching pedals. This enclosure style is often referred to as the 1032L. Mounting screws for the bottom plate are included with this chassis box. Add 0.16" to enclosure depth for lid.

Mono input. PC mount terminals. Metal ferrule. Shorting. Similar to S-H901PC-X.

Metal frame AA battery holder. This battery holder fits a single AA battery and is a great option for electronics that run on 1.5V. It features two solder lugs for connecting wires to the positive and negative ends. The battery holder in the original FZ-1A fuzz pedals looks nearly identical to this holder.

Audio taper, vertical mount, Alpha pots with a 6mm T18 knurled shaft. These 9mm pots are popular in DIY guitar pedals, synthesizers, and other projects. Mounting nut and washer included.

Genuine Hammand screws for use with diecast enclosures. These screws fit all Hammond diecast enclosures as well as any 6-32 UNC threaded enclosure. The thread length is 0.375”.

Hex nut for white Cliff Jacks, threading: 7/16-20. Also used on the footswitch jack in some Marshall amps.

Extra thick M12 flat washers. These washers fit both metric (M12) and imperial (15/32) bushings for compatibility with the vast majority of foot switches and full-sized toggle switches. These thick steel washers are a great way to add a classy look to projects.

The AS3280 is Alfa’s version of the CA3280 IC. The AS3280 consists of two variable operational amplifiers that are designed to substantially reduce the initial input offset voltage and the offset voltage variation with respect to changes in programming current. This design results in reduced "AGC thump," an objectionable characteristic of many AGC systems. Careful design of critical places of the circuit reduces the amplifier dependence upon thermal and processing variables.
The AS3280 has all the generic characteristics of an operational voltage amplifier except that the forward transfer characteristics is best described by transconductance rather than voltage gain, and the output is current, not voltage. The magnitude of the output current is equal to the product of transconductance and the input voltage.

Solderless (plug-in) breadboard with 400 connection tie-points (i.e. 400 wire insertion holes) and 4 power rails. Solderless breadboards are great for building and testing new circuits because parts can be easily inserted and removed making them completely re-usable. This breadboard has a 300 tie-point IC-circuit area plus four 25 tie-point power rails. The housing is made of white ABS plastic, with a printed legend giving numbers and letters for columns and rows. The internal contacts are phosphor bronze with a plated nickel finish and a peelable adhesive tape backing is provided for attaching it to a surface. Be sure to check out the Zipwire™ jumper wire kits for use with this breadboard.

Original Crybaby replacement circuit board for pedals made after 1990. Original Dunlop replacement part.

OC46 PNP germanium transistors. The OC46 is a popular PNP for fuzz pedals and boost effects. It can be found in vintage electronics and modern fuzz pedals. This transistor is in a black glass SO-2 package with long leads commonly found on germanium transistors.

LF356 single op amp in an 8-pin DIP package. The LFx5x devices are the first monolithic JFET input operational amplifiers to incorporate well-matched, high-voltage JFETs on the same chip with standard bipolar transistors (BI-FET™ Technology). These amplifiers feature low input bias and offset currents/low offset voltage and offset voltage drift, coupled with offset adjust, which does not degrade drift or common-mode rejection.

Audio taper (log), vertical mount, Alpha pots with a 6.35mm shaft diameter. These 9mm pots are popular in DIY guitar pedals, synthesizers, and other projects. Mounting nut and washer included.

Low noise JFET quad operational amplifier. Incorporates well matched, high-voltage JFET and bipolar transistors in a monolithic integrated circuit. Features high slew rates, low input bias and offset currents, and low offset voltage temperature coefficients. Features:

• Wide common-mode and differential voltage range
• Low input bias and offset current
• Low noise en = 15 nV/HZ
• Output short-circuit protection
• High input impedance JFET input stage
• Low harmonic distortion: 0.01%
• Internal frequency compensation
• Latch up free operation
• High slew rate: 16 V/us (typical)

CD4046B CMOS Micropower Phase-Locked Loop (PLL) consists of a low-power, linear voltage-controlled oscillator (VCO) and two different phase comparators having a common signal-input amplifier and a common comparator input. A 5.2-V zener diode is provided for supply regulation if necessary. Features:

• Very low power consumption: 70 µW (typ.) at VCO fo = 10 kHz, VDD = 5 V
• Operating frequency range up to 1.4 MHz (typ.) at VDD = 10 V, RI = 5 k
• Low frequency drift: 0.04%/°C (typ.) at VDD = 10 V
• Choice of two phase comparators:
  
  • Exclusive-OR network (I)
  • Edge-controlled memory network with phase-pulse output for lock indication (II)
• High VCO linearity: <1% (typ.) at VDD = 10 V
• VCO inhibit control for ON-OFF keying and ultra-low standby power consumption
• Source-follower output of VCO control input (Demod.