Help,New Valvestorm 18w TMB build, no sound on the Tmb channel
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Help,New Valvestorm 18w TMB build, no sound on the Tmb channel
Hey guys, really would appreciate some help with this one. I have hit a wall. No sound from the TMB/ master volume channel.
Here are some photos and voltage readings I have rewired the input jacks carefully looking for shorts, mistakes etc. when prodding with a chopstick I do get a crackle on c6.
I’ve built five amps so far as a beginner just beginning to understand simple schematics.
Much thanks in advance for any help.
Here are some photos and voltage readings I have rewired the input jacks carefully looking for shorts, mistakes etc. when prodding with a chopstick I do get a crackle on c6.
I’ve built five amps so far as a beginner just beginning to understand simple schematics.
Much thanks in advance for any help.
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- Bieworm
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Re: Help,New Valvestorm 18w TMB build, no sound on the Tmb channel
Take your DMM and look for shorts testing resistance to ground at plates and grids
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Re: Help,New Valvestorm 18w TMB build, no sound on the Tmb channel
I’m sorry, can you explain how to do that? I’m not sure I’m doing it right and what to look for, can I do it with the power off?
Thanks again
Thanks again
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Re: Help,New Valvestorm 18w TMB build, no sound on the Tmb channel
While you're waiting for the experts... yes, power off.
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Re: Help,New Valvestorm 18w TMB build, no sound on the Tmb channel
With the DMM set on ohms:
red probe to pin 2 or/and 7 and black probe to ground
Red probe after each coupling cap and black probe to ground
When you get zero ohms there is a short in that part
red probe to pin 2 or/and 7 and black probe to ground
Red probe after each coupling cap and black probe to ground
When you get zero ohms there is a short in that part
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Re: Help,New Valvestorm 18w TMB build, no sound on the Tmb channel
Thanks Bieworm
I’ll give it a try!
The 001uf coupling capacitor at position C6 does make some noise when tapped with a chopstick, I took it out and checked the capacitance and it was ok, I soldered it back in but no change still makes noise
I’ll give it a try!
The 001uf coupling capacitor at position C6 does make some noise when tapped with a chopstick, I took it out and checked the capacitance and it was ok, I soldered it back in but no change still makes noise
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Re: Help,New Valvestorm 18w TMB build, no sound on the Tmb channel
Found a short and it sounds great! Thanks!
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