New 36 watt radio interference
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- POWDOG
- Newbie
- Posts: 39
- Joined: Tue 09/27/05 2:00 am
- Location: Cool
New 36 watt radio interference
Hey guys. Working on my 36 watt EF86 again. The EF86 channel sounds amazing, very quiet and punchy as hell. The TMB channel however has some problems. It sounds great playing, but has a volume dependent background HUM and is picking up a radio station, which becomes more pronounced with GAIN. Ideas? Thanks!
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- Senior Amp Tech
- Posts: 1169
- Joined: Sat 08/09/08 2:00 am
- Location: Columbia River Gorge, Oregon Side
Re: New 36 watt radio interference
Since it varies with the gain level it's getting in somewhere ahead of that stage. i.e. nearer the input. Check (especially) your grounding connections in the first stage (preamp) as well as wire length and routing around there.
KennyO
KennyO
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