090-015
Top-hat knob for McIntosh MC240 and MC275
Original part (OEM)
Not checked yet
PorkForge replacement
Not made yet
Part facts
- Original part number
- 090-015R1
- Manufacturer
- McIntosh
- Part type
- Knobs · Control knobs and handles
- System
- Operator controls
- Notes
- Small top-hat knob used on the MC240 and MC275 tube power amplifiers, listed at $25 (file photo only). The listing does not say whether the part is new, NOS or used.
- Last reviewed
- Oct 28, 2026 · record pf-aud-00014
Dimensions How to measure this part
Fits these machines
| Model | Years | Notes | Evidence |
|---|---|---|---|
| McIntosh MC240 | Not recorded | — | Reported 1 |
| McIntosh MC275 | Not recorded | — | Reported 1 |
Where to find one today
| Source | Condition | Price | Stock | Checked |
|---|---|---|---|---|
| Audio Classics (audioclassics.com) 1 | Not stated | $25.00 | Not stated | Oct 28, 2026 |
Can this part be made again?
EligiblePhysical replacement
Front-panel knob: cosmetic and hand-operated. No size published; well under 205 mm (inferred). Shaft fit (D or spline) must be matched.
Candidate materials: PETG, PLA (confirmed by test-fitting).
EligibleSTL / FreeCAD file
Can be offered as a printable file and an editable FreeCAD model once the measurements are verified.
Sources
- McIntosh 090-015 MC240 MC275 Top Hat Knob (Audio Classics item page)
- Audio Classics Parts listing, page 16
Not affiliated with or endorsed by McIntosh or its successors. The name is used only to identify compatibility. Part numbers are shown for reference. Check fit against your own machine. Spot a mistake?
Verification checklist (3 of 8 met)
- ✕ OEM part number not yet verified from an OEM or dealer source
- ✕ Cited by one website only, and not an OEM or dealer source
- ✓ At least one compatible model with a source
- ✕ 1 kinds of fact beyond the name (aftermarket prices); 3 needed
- ✕ Original availability not yet checked
- ✓ Text and title are distinct
- ✓ No editorial hold
- ✕ Not yet reviewed and signed off for search
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