Output Transformer

[crgfrench]

Can anyone provide details about the GDS OT that was reverse engineered by Heyboer from an original Radiospares, specifically along the following parameters?

1) is the core a strip wound C-type with grain oriented steel or is it a stamped/laminated silicon-iron alloy?

2) is it a single coil shell or a 2 coil core construction? If single is it E&I or T&U layout, and if double is it U&I or L layout?

3) is it sectionalized to reduce leakage inductance, and if so is the sectionalizing vertical, horizontal, or both?

4) are the windings connected in series or parallel?

5) is it interleaved, and if so what is the interleaving pattern?

6) what are the wire guages?

7) are the windings layered or random, and if layered what is the insulation material?

8 ) is the secondary winding(s) paralleled using smaller guage?

9) what is the distribution of the primary winding around the center tap (is it 50% of the windings, 50% of the resistance, or something else)?

10) what specific insulation material is used?

11) what is the bobbin constructed of?

12) does it use a U (conventional traverse) or a Z (flyback) winding style?

13) what is the wire material and wire insulation materlai (polyurethane etc)?

14) is there an air gap (I know its double ended for PP operation, but there could be one) - and if so what is the gap length?

15) does it have shielding and if so what type?

Thanks in advance.

[Daviedawg]

You could PM Graydon direct.

Dd