![1978 All-Test Devices Corp. (ATD) Transducer Pre-Amp / Booster Blue Vintage USA Effects Pedal Gain Overdrive FX Stompbox by ATD | Reverb Australia 1978 All-Test Devices Corp. (ATD) Transducer Pre-Amp / Booster Blue Vintage USA Effects Pedal Gain Overdrive FX Stompbox by ATD | Reverb Australia](https://images.reverb.com/image/upload/s--IdbWzGSw--/f_auto,t_large/v1661172426/b8mialwngujinko9ko04.jpg)
1978 All-Test Devices Corp. (ATD) Transducer Pre-Amp / Booster Blue Vintage USA Effects Pedal Gain Overdrive FX Stompbox by ATD | Reverb Australia
![Any ideas why my overdrive isn't working? It's a newish head and I just took the pedal I to guitar center to test and it worked fine. : r/GuitarAmps Any ideas why my overdrive isn't working? It's a newish head and I just took the pedal I to guitar center to test and it worked fine. : r/GuitarAmps](https://i.redd.it/r8ckw2x4fya81.jpg)
Any ideas why my overdrive isn't working? It's a newish head and I just took the pedal I to guitar center to test and it worked fine. : r/GuitarAmps
![Amazon.com: ISET Dumble Overdrive Pedal Analog Mini Single Guitar Effect For Electric Guitar Bass True Bypass : Musical Instruments Amazon.com: ISET Dumble Overdrive Pedal Analog Mini Single Guitar Effect For Electric Guitar Bass True Bypass : Musical Instruments](https://m.media-amazon.com/images/I/51JYbZtFCpL._AC_UF894,1000_QL80_.jpg)