RussAudio - Repaired and serviced a Marshall Valvestate S80 (model 8240) guitar amp. Fault reported:- Some sound, but no response from any controls. Extracted chassis for inspection. Electrically tested the 12AX7/ECC83 valve
![Marshall Valvestate S80 Stereo Chorus Model 8240 2-Channel 2 x 40-Watt 2x12" Stereo Guitar Combo | Reverb Marshall Valvestate S80 Stereo Chorus Model 8240 2-Channel 2 x 40-Watt 2x12" Stereo Guitar Combo | Reverb](https://images.reverb.com/image/upload/s--3_lr6jZ4--/f_auto,t_supersize/v1582142267/y0mi7vcnzrlijezwn2b5.jpg)
Marshall Valvestate S80 Stereo Chorus Model 8240 2-Channel 2 x 40-Watt 2x12" Stereo Guitar Combo | Reverb
![Marshall Valvestate S80 Stereo Chorus Model 8240 2-Channel 2 x 40-Watt 2x12" Stereo Guitar Combo | Reverb Marshall Valvestate S80 Stereo Chorus Model 8240 2-Channel 2 x 40-Watt 2x12" Stereo Guitar Combo | Reverb](https://images.reverb.com/image/upload/s--Am6P0_B7--/t_card-square/v1673217928/jcv8ws8qzltnreiqyrlj.webp)
Marshall Valvestate S80 Stereo Chorus Model 8240 2-Channel 2 x 40-Watt 2x12" Stereo Guitar Combo | Reverb
![Marshall Valvestate S80 Stereo Chorus Model 8240 2-Channel 2 x 40-Watt 2x12" Stereo Guitar Combo | Reverb Marshall Valvestate S80 Stereo Chorus Model 8240 2-Channel 2 x 40-Watt 2x12" Stereo Guitar Combo | Reverb](https://images.reverb.com/image/upload/s--DHFkznlA--/f_auto,t_large/v1582142269/gwh9m921i9yslhxjrosb.jpg)