Could Geezers hybrid tube rectifier bridge work with this transformer

[Tone Junkie]

Would these two work together what would be the voltage differance without full wave bridge.
I guess I should add the reason Im sking is the HT doesnt have a ground with a full wave bridge but from the looks of the hybred rectifier circuit that would supply the ground now to just figure voltage . Thanks Bill

[HotBluePlates]

Would these two work together what would be the voltage differance without full wave bridge.

You can't get there from here.

To use a full-wave rectifier circuit, you must have a center-tap, so that the rectified output voltage on each half-cycle is even. Otherwise, you turn the ripple into something very severe, with both a 120Hz component and a quite large 60Hz component. It will be very hard to filter all that hum.

There is no combination of 3 taps such that the middle of the three is an equal-voltage between either of the outside 2 taps. Therefore, there is no tap that can be used as a center-tap. Instead, they provide a number of taps with different voltage differences to other taps, to provide different a.c. input voltages without redundancy.

All this is to say that you must use a full-wave bridge rectifier, or suffer very severe hum problems.

I guess I should add the reason Im sking is the HT doesnt have a ground with a full wave bridge but from the looks of the hybred rectifier circuit that would supply the ground now to just figure voltage.

True, that is the nature of the bridge circuit. No part of the transformer is connected to ground, because each of the 2 taps used alternate between the grounded output and the positive output, the ground being made by way of a diode to ground (or the filter cap negative).

So you should figure based on which 2 taps have a voltage difference that suits your proposed use.

[kagliostro]

With that transformer, if your circuit needs to be a bit different from standard and you need to have a very lower voltage for grids (as an example) you can arrange also a doubler rectifier

a tube + diodes for B+, so you have the advantage of using a tube rectifier + you can use also transformers that are without a CT

and also

a SS bridge (or four diodes bridge connected) to have a different voltage at a lower level that is not convenient to obtain with dropping resisors

[Geezer]

Would these two work together what would be the voltage difference without full wave bridge.

You can't get there from here.

Maybe I'm misunderstanding to OP's question (it's worded in a strange/different manner), but I see no reason that the hybrid tube/SS bridge recto can't be used (as intended) with that PT. 

1) The Weber PT shown is intended for the use of a FW bridge recto (no CT).
2) The hybrid bridge recto is intended for use with a non-CT equipped PT.

You would simply connect the 5v secondary to pins 2 & 8 on the tube recto socket.
Then choose what you want the HT secondary voltage to be.....you have lots of choices. Let’s say we want ~~280 volts from the HT secondary (equivalent to a 280-0 or a 280-0-280 "conventional" PT). Choose the 690v and 410v taps…..690 minus 410 = 280.  Connect those taps to pins 4 & 6 of the rectifier socket.  You now that a 280-0 secondary.
 Connect the SS diodes (oriented as shown) from pins 4 & 6 to ground. Those are the “rear” diodes of the FW bridge.

You can use any standard tube recto for the “front” diodes of the bridge, and thus control the amount of voltage drop, exactly as you would for a conventional tube rectifier.
 Calculate the expected  B+ voltage as you normally would…..a GZ34 would be ~~280*1.3 = 363v. A 5y3 would be ~~280*1.15 = 322v
As I said before, I hope I understood the question correctly…….G

[kagliostro]

Hi Geezer

I think there is a bit of confusion due to terms

Full Wave rectify with 2 diodes and a CT transformer

isn't the same of put 2 diodes without to have a CT to be connected or use one of the disposable windings as CT (that isn't a CT because you have not the same voltage in the two branch)

Bridge rectify uses 2 more diodes to recreate the ground branch for the current (so your circuit is good for that)

At the begin I was a bit confused reading HBP because as Full Wave rectify I was thinking to a Bridge, not the 2 diodes + CT connection

Hope HBP  will say if I understand correctly or was wrong

Kagliostro

p.s.: The way is drawn here down the Full Wave rectify is deliberately WRONG without CT and if you use one of the disposable windings as a CT you'll have problems because of the imbalance of the circuit

[HotBluePlates]

Would these two work together what would be the voltage difference without full wave bridge.

You can't get there from here.

Maybe I'm misunderstanding to OP's question (it's worded in a strange/different manner), but I see no reason that the hybrid tube/SS bridge recto can't be used (as intended) with that PT. 

That is what I'm saying. But what I should have said more explicitly is that a full-wave bridge rectifier is the only rectifier circuit that can be used (yes, you can arrange a doubler of 2 bridge circuits as kagliostro has shown).

Maybe I m isunderstood the original question, but it was phrased as though Tone Junkie knew he could use a bridge, but what voltage would he get of he didn't use a bridge, but a standard full-wave circuit. So I was explaining why a full-wave can't be used. Thanks Geezer for giving the other half of the answer, which is demonstrating how to figure the rectified dc voltage with a given pair of taps.

Last point: They did include a pair of taps that are 70v from the outside taps. That's so that if you use one of those outside taps, you also have a 70vac bias tap already built in.

[Tone Junkie]

Sorry it was late I was tired.  I want to use that transformer with a tube rectifier I thought with the hybrid it would supply the HT ground that was missing to it. and still get the sag from a tube rectifier. now with that point made, so I can also use the 70volt tap for bias I hadnt thought of that.
Thanks Bill
PS. my thought was I have several of those and there so cheap that I could experiment with some differant low power amps . with 280 volts and 150 ma I could try that 6aq5 amp I have been wanting to build and some oddball el84 configurations.
 I seem to have a problem with constantly buying amp stuff its sitting all over my work room (LOL).

[Tone Junkie]

Thanks Geezer you answered my question completely. I have a bad habit of thinking about this several steps ahead of my original question then combining 2 questions together when Im overly tired so the question becomes confusing  Sorry.
Bill

PS. It would help if I had more time to work on these things I tend to trade my sleep time for amp building time because thats all I have open to me at the moment.