Whether you are printing out a faded 1963 schematic or downloading the AC30C2 service manual from Vox’s servers, treat this document as essential as your guitar pick. Because when your AC30 starts sounding thin, starts humming, or stops working entirely, the manual is the only roadmap that will get you back to stage volume.
Comprehensive catalogs of resistors, capacitors, transformers, and hardware needed for repairs. PCB Layouts: vox ac30 service manual
For the uninitiated, a Vox AC30 service manual looks like a bowl of spaghetti drawn by an electrical engineer. However, learning to read the schematic empowers the owner. The AC30 circuit is famously simple—it relies on the quality Whether you are printing out a faded 1963
| Component | Failure Mode | Recommended Replacement | | :--- | :--- | :--- | | | Arcing carbon tracks (TBX) | Ceramic, Belton or Amphenol. | | Cathode resistor | Overheating, open circuit | Wirewound 25W, mounted 1" above board. | | V1-V3 plate resistors (100kΩ) | Noise, drift | 1W metal film (CC2) or carbon comp (TBX for vintage tone). | | Treble bleed cap (TBX channel) | Leaky, causes scratchy vol pot | 100pF silver mica. | | Speaker jack | Cracks (plastic Cliff jacks) | Switchcraft 12A (metal). | PCB Layouts: For the uninitiated, a Vox AC30
