Hyde Transformers Info

[groselicain]

Purchased some Jensen transformers from a guy on eBay recently. He threw in a bunch of these other transformers that he claims came from an API distribution amplifier, but I can’t find any documentation online for them.  Printing on them reads 1400-232 HYDE 2188, and he claims they’re wound for 1:1.5. I’ve looked for Hyde transformers online to no avail. Does anyone have information on these?

 

[gridcurrent]

Hyde 1400-232
audio transformers

date code:  2188

test leads' resistance:  0.3 ohms

turns ratio
1 :  1.5



example #1


terminals 1 to 2:  17.0 ohms DCR

inductance:
2.7 H @ 120 Hz  (Q  1.44)
846 Mh @ 1000 Hz  (Q  .86)


terminals 3 to 4:  25.1 ohms

inductance:
5.6 H @ 120 Hz  (Q  1.49)
1.86 H @ 1000 Hz  (Q  1.6)



example #2


terminals 1 to 2:  16.8 ohms DCR

inductance:
2.6 H @ 120 Hz  (Q  1.39)
833 Mh @ 1000 Hz  (Q  .92)


terminals 3 to 4:  25.1 ohms

inductance:
5.35 H @ 120 Hz  (Q  1.45)
1.78 H @ 1000 Hz  (Q  1.68)


phasing

terminal 1 in phase with terminal 3
terminal 2 in phase with terminal 4

 

[mjrippe]

Wow!  This group really delivers the goods.  ;D

 

[groselicain]

Wow!  This group really delivers the goods.  ;D

Sheesh, you’re not just kidding. Gridcurrent, thank you so, so much. Any backstory on Hyde? More specifically, were there other Hyde transformers used at API or were these just used in the 7326?

Thanks again, really—in the middle of a move and I don’t have access to any of my test equipment, so to have someone give all that information is so incredibly helpful.

 

[gridcurrent]

Any backstory on Hyde? More specifically, were there other Hyde transformers used at API or were these just used in the 7326?

not aware of any application of the Hyde transformers other than the distribution assembly.
an associate tested the Hyde a few days ago.  fed from the 15 ohms source of an apee analyzer; 
his assessment was positive, no anomalies.