[Amps] 2x 4cx1500b amp

[Felipe Ceglia - PY1NB]

Hi folks,

Thank you for the replies you sent me.

Regarding the HV transformer, some things that I could gather from your replies:

- not use a center tap on the secondary
- look for hypersil or other good quality iron
- good copper wire insulation
- good layer insulation
- primary taps are a good idea, but them should not go too far.
- secondary taps are not a seven-headed beast, but I wont be able to change that 
on the fly

So, I wonder as having these specs for my price quotations:

primary:
0 - 200 - 210 - 220 - 230

secondary
0 - 2400 - 2600 - 2800 - 3000 - 3200 - 3400 (no center tap)


I believe that will make room for future projects using the same transformer.


73 TU,

Felipe








Felipe Ceglia - PY1NB wrote:
> Hello "Ampers",
> 
> I am willing to build a 2x 4CX1500B amp for 160 to 10m usage. Willing to 
> use a GM3SEK tetrode board for controlling and protecting it.
> 
> As I will need to special order the HV supply transformer, I am thinking 
> about asking for a multiple voltage primary and a fixed voltage 
> secondary (probably 1250v - 0v - 1250v), so it will be easier to change 
> output voltage just changing the primary, instead of dealing with HV. Is 
> it a bad idea?
> 
> I would like to hear from you if you have built anything like it, or if 
> you have something to say.
> 
> Also, are there alternatives to the tetrode board?
> 
> 73,
> 
> Felipe - PY1NB
> 
> 
> 
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