Bottlehead Forum

Bottlehead Kits => Legacy Kit Products => Smash => Topic started by: mpeg2 on March 31, 2018, 06:37:50 AM

Title: Crackling noise?
Post by: mpeg2 on March 31, 2018, 06:37:50 AM
I've had my Smash for a while now - today noticed a faint crackling noise coming out of both channels during quiet passages - independent of the input source. It might be my imagination, but microphonics seem to be a bit more than in the past. My normal inclination would be to suspect the tubes & change them - but I can't seem to find a source for 4P1Ls.

Any suggestions on what to look at (or where to find tubes)?? I won't be able to do much for the next few weeks due to travel, but would like to get an idea what to attack when I get back.

TIA
Rich
Title: Re: Crackling noise?
Post by: Paul Birkeland on March 31, 2018, 07:04:20 AM
There are gazillions of 4P1L tubes on eBay.
Title: Re: Crackling noise?
Post by: mpeg2 on March 31, 2018, 07:14:28 AM
Thanks - I don't normally use ebay, so didn't look there.
I'll try this first...

Thanks...

Rich