OT:What going to happen if I match 200ohm amp to 16ohm speak

**tomt** · May 21st, 2012, 06:07 PM

schematic here -

Ela V304/1 Amplifier Telefunken Deutschland TFK, build 1938&

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Originally Posted by gvasale

but when, then, did the 600 ohm become standard?

the original line impedance at the phone company. (in the usa)

**RonSSS** · May 21st, 2012, 06:18 PM

That helps, thanks.

Transformer coupled, push pull EL34 output.

If these are phone company amps, bandwidth was likely not hi fi.

Being push pull finding a correct output transformer to match to 8/16 ohm speakers just got real easy.

Ron

**sanhanul** · May 22nd, 2012, 08:55 PM

I got the UTC transformers. I think I am ready for the amplifier now. Thank you everybody especially AltecBest who found the UTC for me.

I learned a lot from this thread and I am encouraged to learn more about the specification of the amplifier and transformer.

I will post the amplifier pictures with the transformers later.

UTC LS-33 Audio High Level Line Matching Transformer | eBay
UTC LS-33 Audio High Level Line Matching Transformer | eBay

**Altec Best** · May 23rd, 2012, 12:14 AM

Your Welcome ! You snagged them both ? Good Deal !!! The operating Frequency of those Transformers are 10 Hz-40 Khz 20 watts. Even if you don't use them with this amp they are a very good transformer to have in your toolbox... As you can match just about any speaker impedance with those.

Good Luck with your project !