1590B · 1 knob
Landgraff Clean Boost (drawn by Clay Jones)
Based on the Landgraff Clean Boost
From the vendor
Clay Jones's drawing of the Landgraff Clean Boost, which the post points out is a Zvex Super Hard On MKI: an NTE490 N-channel MOSFET with 10M bias resistors, 1N914 protection diodes and a 5K linear source pot with 10 detents.
The drawing lists a yellow AVX box input cap, a brown Nichicon filter cap, a Sprague output electrolytic, 1/4W carbon comp resistors and a Hammond 1590B box.
Schematic
The schematic is in the post. Open it at Revolution Deux. No KiCad fragment has been drawn for this circuit yet.
Parts list 13 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 2 values the reader of this schematic was not sure of
- The input cap value is not drawn.
- The supply filter diode is marked 'IN TFK' (Telefunken?), part number not given.
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 5 | ||||
| R1 | 10K | 10k | read from the schematic by eye | |
| R2 | 10M | 10M | read from the schematic by eye | |
| R3 | 10M | 10M | read from the schematic by eye | |
| R4 | 5.1K | 5.1k | read from the schematic by eye | |
| R5 | 100K | 100k | read from the schematic by eye | |
| Capacitors 3 | ||||
| C1 | ? | ? | input, yellow AVX box; value not drawn; read from the schematic by eye | |
| C2 | 10u | 10u | electrolytic; read from the schematic by eye | |
| C3 | 47u | 47u | filter; read from the schematic by eye | |
| Diodes 3 | ||||
| D1 | 1N914 | 1N914 | protection; read from the schematic by eye | |
| D2 | 1N914 | 1N914 | protection; read from the schematic by eye | |
| D3 | ? | ? | filter diode marked TFK; read from the schematic by eye | |
| Transistors 1 | ||||
| Q1 | NTE490 | NTE490 | N-channel MOSFET; read from the schematic by eye | |
| Potentiometers 1 | ||||
| Boost | B5K | B5k | Potentiometer | 10 detents; read from the schematic by eye |