Enclosure not stated · 4 knobs
Exar MT-1 MetalVerified
Based on the Exar MT-1 Metal· 1 other board clones it
- Category
- Distortion
- Build
- Vero· 19×21· 20 cuts, 9 links
- Layout
- Verified · Dirtbox Layouts marks it as built and working
- Tags
- Distortion, Exar, HM-2
From the post
Might be something for the HM-2 fans? The gyrator frequiencies and Q's looks promising... Schematic is avaiable HERE.
Schematic
This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Dirtbox Layouts. No KiCad fragment has been drawn for this circuit yet.
Parts list 33 rows
Report a wrong parseGot parts in a drawer? See what you can build with them.
Check before you build · 1 value the reader of this layout was not sure of
- Q2-Q3 legend reads 'BC328C or BC547B': printed clearly, unusual (BC328 is PNP while the alternative BC547B is NPN; possibly meant BC238C)
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 10 | ||||
| ×6 | 10K | 10k | read from the layout by eye | |
| ×5 | 1K | 1k | read from the layout by eye | |
| ×3 | 470K | 470k | read from the layout by eye | |
| ×2 | 470Ω | 470 | read from the layout by eye | |
| ×2 | 56K | 56k | read from the layout by eye | |
| ×2 | 3.3K | 3.3k | read from the layout by eye | |
| ×1 | 100K | 100k | read from the layout by eye | |
| ×1 | 12K | 12k | read from the layout by eye | |
| ×1 | 33K | 33k | read from the layout by eye | |
| ×1 | 1M | 1M | read from the layout by eye | |
| Capacitors 12 | ||||
| ×1 | 100pF | 100p | read from the layout by eye | |
| ×1 | 470pF | 470p | read from the layout by eye | |
| ×1 | 1nF | 1n | read from the layout by eye | |
| ×1 | 10nF | 10n | read from the layout by eye | |
| ×1 | 22nF | 22n | read from the layout by eye | |
| ×2 | 47nF | 47n | read from the layout by eye | |
| ×2 | 100nF | 100n | read from the layout by eye | |
| ×1 | 150nF | 150n | read from the layout by eye | |
| ×1 | 330nF | 330n | read from the layout by eye | |
| ×3 | 1uF | 1u | electrolytic; read from the layout by eye | |
| ×1 | 10uF | 10u | electrolytic; read from the layout by eye | |
| ×2 | 100uF | 100u | electrolytic; read from the layout by eye | |
| Diodes 2 | ||||
| ×4 | 1N4148 | 1N4148 | D1-D4; read from the layout by eye | |
| D5 | 1N5817 | 1N5817 | read from the layout by eye | |
| Transistors 4 | ||||
| Q1 | BC413 | BC413 | legend: BC413 or BC550B; read from the layout by eye | |
| Q2 | BC328C | BC328C | legend: BC328C or BC547B; read from the layout by eye | |
| Q3 | BC328C | BC328C | legend: BC328C or BC547B; read from the layout by eye | |
| Q4 | BC413 | BC413 | legend: BC413 or BC550B; read from the layout by eye | |
| ICs 1 | ||||
| IC1 | 1458 | 1458 | legend: 1458 or TL072; read from the layout by eye | |
| Potentiometers 4 | ||||
| Gain | A500K | A500k | Potentiometer | read from the layout by eye |
| High | B22K | B22k | Potentiometer | read from the layout by eye |
| Low | B22K | B22k | Potentiometer | read from the layout by eye |
| Level | A10K | A10k | Potentiometer | read from the layout by eye |
Other boards based on the Exar MT-1 Metal
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