Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: stevensloane on June 07, 2019, 07:52:48 am

Title: DC Elevated Filaments to Relay Power Supply
Post by: stevensloane on June 07, 2019, 07:52:48 am

Can I DC elevated filaments to power the relay power supply?

Title: Re: DC Elevated Filaments to Relay Power Supply
Post by: shooter on June 07, 2019, 09:44:30 am

I don't see elevated heaters or relays in the schematic your posted  :dontknow:

there's a good read for relays, make note of power hookup at the very end

http://el34world.com/projects/relay_switch.htm

Title: Re: DC Elevated Filaments to Relay Power Supply
Post by: stevensloane on June 07, 2019, 09:56:42 am

There is no relay in the schematic. I’m using one of Doug’s relays and power supplies. There a DC elevated heater supply in the schematic. Follow the center tap for the heaters. What I am asking is it ok to hook up the heaters on this schematic to Doug’s power supply.

Title: Re: DC Elevated Filaments to Relay Power Supply
Post by: sluckey on June 07, 2019, 10:19:03 am

Should be OK ***IF*** you float Doug's power supply, ie, don't connect the 5V common (ground) to chassis ground. This also means use isolated jacks for footswitches.