[Amps] What to do about 'Neutral' in HB amp?

[Victor Rosenthal 4X6GP]

Steve,

Keep in mind that most of the step up/down transformers sold are 
actually autotransformers. One side of the primary is connected to one 
side of the secondary. This should not be a problem regarding operating 
your 120v stuff, but don't ground either side of the secondary.

73,
Victor, 4X6GP
Rehovot, Israel
formerly K2VCO
CWops no. 5
http://www.qsl.net/k2vco/

On 31/12/2022 1:25, Steve Bookout wrote:
> Hello all,
>
> My question was not intended to start a 'smartest man in the room' 
> debate.  I just had a genuine question.  Electronics is my hobby and 
> never was my profession, so I can't get into the 'Grey matter debates'.
>
> I did get several good responses to my original question and have 
> decided on a course of action.   This amp is being built with parts 
> gathered, here and there, over 4 decades, so not much is 'ideal'.
>
> My several blowers are all 120 volt.
>
> I do not have a 120/240 volt filament I can use to use the dual input 
> windings center tap as a neutral.
>
> I have ordered a 500 watt 240>120 step down transformer.  I will have 
> one side feeding my 120 volt items and the other side as a common 
> neutral.
>
> My DC power supply has an input of 88 to 264 volts, so that is not a 
> problem.  Just a couple of relays, filament transformer  and blower.
>
> I have room for the transformer as I'm building this 8877 10 meter amp 
> in a waist high rack cabinet.
>
> I'm sure it will work out fine.  If it doesn't, I just tie the 
> 'downstream side' of the 120 volt item to the chassis and not tell 
> anyone. 8^)
>
> When I kick your butts in some contest on 10 meters, it might be with 
> an amp with the neutral tied to the chassis 8^)
>
> Seriously, thanks for the useful input.
>
> 73 de Steve,  NR4M
>
> _______________________________________________
> Amps mailing list
> Amps at contesting.com
> http://lists.contesting.com/mailman/listinfo/amps