So, I Just set up my VH4 after taking a break from it. I get no sound from channels 1 and 2 ... I can get some very FAINT signal out channel 3 and 4. I'm figuring this is a preamp tube issue ... looking at the back of the amp going right to left, any suggestions as to which tubes (#1, #2, #3 etc.) are the likely culprits? No tube seems to glow real bright. Can anyone confirm this is definitely a pre-amp tube gone nutty type of behavior? I don't have a spare, that I can find to switch out. Oddly I seem to just have a few power amp spare tubes in my parts drawer. I'm sure I have a spare 12ax7 somewhere.
I'm thinking I will try taping a pencil on each tube to see if noise is present, I kinda remember a tech giving me that advice once. Any other tips to try and figure out whats the matter? If we are unanimous on it being a preamp tube ...Maybe I will order a new set of preamp tubes ... what's everyone like these days in their VH4? Where is the best place to order from?
Thanks for any help -J
I'm thinking I will try taping a pencil on each tube to see if noise is present, I kinda remember a tech giving me that advice once. Any other tips to try and figure out whats the matter? If we are unanimous on it being a preamp tube ...Maybe I will order a new set of preamp tubes ... what's everyone like these days in their VH4? Where is the best place to order from?
Thanks for any help -J