[sdiy] Building the ASM-1 Noise Source

[Michael -nil-x]

Well it ended up being something stupid. I had the transistor in 
backwards. Oops. You know I triple checked everything and it was 
something so simple. I had to use a different transistor to get a louder 
noise too.

- Michael nil-x
- Pressure : Penetration

harrybissell wrote:

>Hi Michael nil-x
>
>One major issue could be your selection of noise transistor. Some give only a hint of noise...
>and allow massive amounts of hum that would be masked by a proper level of noise.
>I had this problem with the MacDonald MiniModular when I first started it up.
>
>Another issue might be proper decoupling of the drive to the noise transistor itself. Sometimes
>you need an RC filter on the supply...
>
>Last trick... use a couple of 9V batteries to power the circuit, eliminating the power supply
>If the hum is gone, its the supply...
>
>H^) harry
>
>  
>