El boost-o

board for LED with DPDT footswitch. DPDT bypass switch wiring shown on the layout. Registered trademarks are property of their owners. El boost-o. Rev.2.Jan.
60KB taille 8 téléchargements 374 vues
El boost-o Rev.2.Jan.30.2004

Build an EH LPB-1/LPB-2 transistor booster on this layout. Millenium bypass (R.G. Keen) added to the board for LED with DPDT footswitch. DPDT bypass switch wiring shown on the layout. Registered trademarks are property of their owners.

1

100kA

0.1

10k

0.1

430k 43k 390

+9V IN GND

2M2

3 2 1 LEVEL D1 OUT G CNT 2k2 LED 4k7

½ 3002 PF

TSOOBL

0

LAYOUT 0

1



2

READY TO TRANSFER

DPDT

INPUT JACK TIP

½

OUTPUT JACK TIP

Transistors 1 - 2N5088

Millbypass 1 - FET (MPF102 or other) 1 - 4k7 1 - 2k2 1 - Diode (1N914) 1 - LED

Layout and presentation by Francisco Peña 2001-2003®. All rights reserved. Authorization for personal use only, any commercial use is forbidden. Permission for posting/serving limited to http://www.tonepad.com Permission refused for posting from other sites.

Resistors 1 - 390 ohm 1 - 10k 1 - 43k 1 - 430k 1 - 2M2 1 - 100k Log Pot.

PARTS LIST Capacitors 2 - 0.1µF

Schematic 1N914 AC ADAPTOR

+

2N5485 9v 430k

10k

2k2 0.1 LED

INPUT

Q1

3

100kA 1

2M2

4k7 CTRL

0.1

43k

390

2

OUTPUT