Sidebar Sidebar
  • You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.

Best low pass filter???


You must ask yourself, do I really need a low-pass filter?

Tube amplifiers have a Pi-L output network, which inherently reduces harmonic output to antenna. You should never need a low pass filter with any decent tube amp.

Solid state amps do need output filtering, for base-station use.
Those amps built for this purpose already have this.
Only case I could see without filter is home brew, or a CB pill amp which is a total pain to power as a base.

But even if you put out harmonics, the VHF low band TV 54-88MHz is largely vacated due to digital TV migration. It would be surprising if you had a TV station your harmonics could actually trash, considering how few there are on the air. And those that are on, are digital. so how would neighbor know?
Harmonic problem on some other frequency band?
 
Hi Dan, Always try what is easiest and cheapest first. Try the snap on chokes. Get larger ones that have enough room in them where you can wrap many several turns of wire around through them.

Next may be to try shielded speaker wire. Replace entire speaker wires with shielded types.

Good luck
 
Chokes should be placed as close to the speaker connection to the amplifier end as possible. Same for the AC power line.
 

dxChat
Help Users
  • No one is chatting at the moment.


      Top Bottom
      Back