Silver Mica 680 pF

• Type: Polyester Film Capacitor
• Voltage Rating: 600 V
• Operating Temperature Range: - 55°C / + 85 °C
• Termination Style: radial, copper leads

• Type: Metalized Polyester Film Capacitors (PET)
• Voltage Rating: 630 VDC / 220 VAC
• Tolerance: +/- 10%
• Operating Temperature Range: - 55°C / + 100 °C
• Termination Style: axial

• Voltage Rating:    500 V
• Tolerance: 5%
• Operating Temperature Range: - 50°C / + 150°C
• Termination Style: radial

• Voltage Rating:    500 V
• Tolerance: 5%
• Operating Temperature Range: - 50°C / + 150°C
• Termination Style: radial

• Type: Tubular Metalized Polyester Film Capacitors
• Voltage Rating: 630 V
• Tolerance: +/- 10%
• Operating Temperature Range: - 40°C / + 85 °C
• Termination Style: axial
• • Non-inductive
  • Self healing windings.
  • Similar to the Mallorys 150-Series

• Voltage Rating:    500 V
• Tolerance: 5%
• Operating Temperature Range: - 50°C / + 150°C
• Termination Style: radial

• MPW axial leaded metallized polypropylene film capacitors
• Self Healing
• Low ESR
• Tolerance: +10% @ 1 kHz, 25°C
• Peak, AC voltage (50/60 Hz): 630VDC / 250 VAC
• Size: Ø 6,5 x 14,5 mm
• Dielectric: Polypropylene
• Coating: Flame Retardant Polyester tape wrap (UL510) with epoxy end fill (UL94V0)

Kit for TT PSU Mini

The kit includes all components except a powertransformer and a choke for building PSU for tube amps. If you want to use a choke instead of the 5 W resistor than you must order the choke that you need separately.
The PSU can handle max 700 V DC at out B1 and B2, 450 V DC at out B3 and is recommended for tube amps up to 50 Watt. The size of the PSU is 97 x 55 mm only and has a high of ca. 40 mm.

Please refer the attached schematic for more infos about the layout and design of the PSU.

Tip: use Duncanamps' PSU Designer to simulate and calculate power supplies.

Files:

• Document

This is a kit of the famous Dumbleator, can be used as standalone device or for installation in an existing amplifier.

When build as a stand-alone device, the kit can be powered with the TT-VPump, in an amplifier the kit must be supplied via the existing power supply of the amp.

The Dumbleator offers numerous configuration options which are shown in the appended schematics.

Input Levels:
InA: 10-15 Vpp
InB: guitar level - 5 Vpp

The kit includes all the parts needed to build the "standard version" incl. a 12AX7, potentiometers and leads.
It does not include components that are required for the building the extended versions,  as well as a power supply or casing.

The Dumbleator utilize POTENTIALLY FATAL HIGH VOLTAGES.
Seek help from a competent technician if you are in any way unfamiliar with high voltage circuits.
Use at your own risk.

Files:

• Schematics