HT bench power supply

[glowinganode]

Would prefer collection in person / fcs, where do you live (roughly)?
Rob.

[glowinganode]

I've dug out all the info I can find. I've since changed the values of R29 & R30, to increase the ranges slightly.
The last drawing is a rough arrangement of the original 545A p/s.
Alan, I've had a look at the transformer, it's not identical but has a similar number of windings. You'll have some working out to do, but should prove suitable.
Rob.

[AlanBeckett]

I keep an eye out for scrappers for just such a project but it would have to be really scrap or I'd want to mend it.
545A PSU diagram attached.
Alan

[attachment=1277]

[tiv48]

545A PSU now thats what you call a power supply
rob t

[Shaman]

The 545A PSU, i agree with Rob. Now this is a real power supply.....Alan.

[Shaman]

Hi glowinganode, Rob nice circuit, looks like a power supply is in the pipeline, for the next project....Thanks....Alan.

[glowinganode]

Hi, checked out the tranny earlier.
It's a bit rusty but looks a nos spare part as the tags have never been soldered to (until now).
It's not from a 545A, as there are fewer windings and of lower voltage.
Maybe came from a similar model but without the distributed Y amp or a lower bandwidth (535?).
It has several 6.3V windings, so it must have been valve kit, but could have been hybrid (545B?).
I did try googling the part number, but no joy.
I even started going through tek manual downloads and checking the parts list, but as it's a nos item it may be an updated part.
Rob.

[AlanBeckett]

Rob,
If no-one else wants it I'll drive down to your place and get ir.
Alanb

[glowinganode]

Let's see what shaman says as he asked first, but ultimately it will go to whoevercan arrange collection first.
I can bring it to Dunstable Downs or Cottered if that helps.
Rob.

[Shaman]

Hi Rob, can you post at my cost, if not let Alan have it, i dont mind, what ever is easier for you....regards....Alan.