Step 6 — Wire the Greasebucket Tone Circuit

Modified tone control — no bass loss
22nF + 4.7kΩ series to ground · 100nF WIMA bridge
CTS 250K audio taper
BLEND MN250K dual-gang VOLUME CTS 250K push-pull DPDT 2 WPR TONE CTS 250K audio 1 CCW 2 OUT 3 IN GROUND BUS OUTPUT Switchcraft mono jack T TIP S SLV 22nF film cap 4.7kΩ metal film 100nF WIMA MKS2 6.1: Vol wiper → Tone Lug 3 6.2: Tone wiper → Jack TIP 6.3: T1 → 22nF → 4.7k → GND 6.4: L1↔L2 bridge ⚠ GREASEBUCKET WARNING Do NOT connect Lug 1 directly to ground! Must go through 22nF + 4.7kΩ series path. GREASEBUCKET SIGNAL FLOW 22nF + 4.7kΩ series: rolls off treble via Lug 1 100nF bridge: prevents bass buildup at low settings Result: tone knob cuts highs without muddying lows Standard tone = cap to GND (loses bass). Greasebucket = keeps it. ⚡ CONTINUITY CHECK Tone Lug 1 to ground = ~4.7kΩ. If 0Ω, find the short.
Signal in (Vol wiper → Tone L3)
Output (Tone wiper → jack)
Greasebucket circuit
Ground connections
Ground bus

Step 6 Instructions

6.1 — Volume wiper → Tone Lug 3 (CW/input). Run a signal wire from Volume pot Lug 2 (wiper) to Tone pot Lug 3. This feeds the blended, volume-controlled signal into the tone stage.
6.2 — Tone Lug 2 (wiper) → output jack TIP. This is the final output. Route a cyan wire from Tone wiper to the jack tip contact.
6.3 — Tone Lug 1 → 22nF cap → 4.7kΩ resistor → ground bus. Solder the 22nF film cap from Lug 1, then the 4.7kΩ resistor in series, then to the ground bus. NOT direct to ground!
6.4 — 100nF WIMA cap bridging Lug 1 ↔ Lug 2. Solder the 100nF WIMA MKS2 cap between Tone Lug 1 and Tone Lug 2. This is the bass-preservation bypass that makes the Greasebucket work.