Hoffman Amplifiers Tube Amplifier Forum

Other Stuff => Solid State => Topic started by: Tone Junkie on December 10, 2010, 04:30:22 pm

Title: 5volt tap for relays
Post by: Tone Junkie on December 10, 2010, 04:30:22 pm

Anyone have a favorite rectifier filtering schem. for using the 5 volt tap to switch your relays Ive alway just used 6.3  for that and dont have one handy and I have this extra power sitting here . I need to use. thanks Bill

Title: Re: 5volt tap for relays
Post by: JayB on December 10, 2010, 05:08:54 pm

If your not using the 5v winding for a tube rectifier, A cheap rectifier bridge and a 470uf 25v cap. All you need. That's all I use for a fenderish build. Except I use 3v relays, most will turn on at 3v or higher anyways.

Title: Re: 5volt tap for relays
Post by: phsyconoodler on December 10, 2010, 06:02:13 pm

I use the 5v tap for relays on my Overdrive Rocket amps.It's really easy.I like using 5v relays because they seem to be very reliable and no noises that I have heard.
   I have used up to three relays and two LED's with my amps with no trouble at all.

Title: Re: 5volt tap for relays
Post by: Tone Junkie on December 14, 2010, 08:40:20 pm

yes but any one with a diagram of diode and filtering placement thanks Bill
PS. I love the omron 5 volt releys there great but usually im coming of my duel heater tap for power

Title: Re: 5volt tap for relays
Post by: Boots Deville on December 14, 2010, 10:09:53 pm

I think the attached captures what JayB has described, but please correct me if I'm wrong.

Title: Re: 5volt tap for relays
Post by: Tone Junkie on December 15, 2010, 02:31:31 pm

Thanks Boots Deville thats what I needed I didnt know how to incorporate the 5 volt center tap into the equation. Bill

Title: Re: 5volt tap for relays
Post by: sluckey on December 15, 2010, 02:34:45 pm

Quote

how to incorporate the 5 volt center tap into the equation.

Look at that drawing again. He's not using a center tap.

Title: Re: 5volt tap for relays
Post by: Boots Deville on December 15, 2010, 02:43:40 pm

Yeah, no center tap.  If you wanna see a layout, search for the D'Lite layout with relays over at the amp garage.  Let me know if you have trouble finding it.

Title: Re: 5volt tap for relays
Post by: JayB on December 15, 2010, 04:32:36 pm

Quote from: Boots Deville on December 14, 2010, 10:09:53 pm

I think the attached captures what JayB has described, but please correct me if I'm wrong.

I meant a bridge but a doubler will do just as good.   :smiley:

Title: Re: 5volt tap for relays
Post by: Tone Junkie on December 16, 2010, 01:42:15 am

Sorry guys Ive only used the 5 volt line for running rectifier tubes,I guess I just foolishly thought one was positive and one was negative or ground. But when I look at how I connect to the rectifier tube thats not the case.It sucks being a newbie Ive learned alot the last couple years but I still have so far to go. (LOL).
Thanks  Bill

Title: Re: 5volt tap for relays
Post by: Tone Junkie on December 16, 2010, 08:17:35 pm

Here,s the best thing I have found so far.  http://forum.metroamp.com/viewtopic.php?f=4&t=28297&start=0

Boots Deville thank you for the amp garage tip I found what you were talking about in about 5 mins. Then spent the next three hours reading and downloading schematics and layouts.(LOL) Thanks Bill